Discover the best SEO agencies to organically increase your traffic. Our expert team curated a list of providers that go above and beyond to improve search visibility, increase qualified traffic, and drive measurable business growth.
We selected the 10 best SEO agencies after evaluating over 15,000 service providers, considering their industry experience, client reviews, portfolios, pricing, and more. In the next section, we will showcase what makes each of these agencies stand out.
The Number 1 SEO Agency as Selected by DesignRush Is:
Searchbloom
- Best for: Overall
- Average Hourly Rate: $100
- Minimum Budget: $1,000 - $10,000
- Founded: 2014
- Location: Draper, Utah
- Notable Clients: Nordstrom, The Perfect Sleep Chair, Goedeker's, Trex Fencing, XBOSoft
Searchbloom is a top-rated SEO agency that helps businesses grow through a proven A.R.T. (Authority, Relevancy, Technology) framework, crafting custom SEO strategies that improve keyword rankings, increase organic traffic, and boost conversions.
Whether it's local, national, or eCommerce SEO, the agency helps clients compete and dominate rankings in highly competitive search results. Offering end-to-end audits, backlink acquisition, and technical optimization, Searchbloom delivers measurable success, which makes it a trusted partner for long-term digital growth.
The Perfect Sleep Chair, a premium manufacturer of sleep chairs, struggled to gain traction online across a competitive market dominated by Amazon and Walmart. To improve visibility, it launched a product-specific microsite but soon faced new technical and authority-related SEO challenges. Partnering with Searchbloom, the brand underwent a full SEO transformation focused on A.R.T. Searchbloom conducted a backlink profile audit, acquired high-quality links, optimized internal linking, and addressed key technical issues to improve search engine performance.
Within two years, the site experienced a 1791% increase in total ranking keywords, growing from 300 to 5,674. First-page rankings soared from 176 to 1,247, and top 3 rankings rose by over 291%. Authority metrics also saw dramatic gains, namely referring domains increased by 1100% and referring pages by 3200%. Organic sessions more than doubled, increasing by 156%.
Check Searchbloom's Agency Reviews
SmartSites
- Best for: Integrated SEO strategies
- Average Hourly Rate: $100
- Minimum Budget: Inquire
- Founded: 2011
- Location: Paramus, New Jersey
- Notable Clients: Coin Exchange, CMS Funding, DataGalaxy, E-Valve Technologies, Energy Watch
SmartSites is a leading SEO company driving impactful, organic results for businesses since 2011. In the last 20+ years, its team has launched over 900 SEO-optimized websites. With more than 80 designers, developers, and search engine optimization experts, SmartSites crafts customized solutions targeting all factors affecting SERPs. Most of its campaigns double traffic within six months, contributing to over $100M in sales and a growing base of 500+ satisfied clients.
One client that benefited from SmartSites' expertise is Coin Exchange, a New York-based coin store aiming to increase visits to its physical location. With over 200 local competitors, the store needed a way to stand out and attract more customers.
The SEO agency redesigned Coin Exchange's website to enhance its user-friendliness and visual appeal while optimizing it for relevant keywords. SmartSites also implemented a weekly blog and ran a link-building campaign to boost the site's search engine rankings.
The strategy delivered impressive results, including a 231% increase in total site visitors, a staggering 495% boost in organic search traffic, and an extraordinary 647% growth in non-branded organic search traffic.
Check SmartSites' Agency Reviews
HigherVisibility
- Best for: Retargeting campaigns
- Average Hourly Rate: Inquire
- Minimum Budget: $1000 - $10,000
- Founded: 2008
- Location: Memphis, Tennessee
- Notable Clients: Allure Bridals, Warner Bros, eBay, BBQ GUYS, and more
HigherVisibility is an award-winning digital marketing agency specializing in SEO, paid search, and social media advertising. They excel at attracting diverse brand customers, prioritizing true partnerships over mere task execution.
Collaborating with Allure Bridals, they implemented exclusive trunk shows and retargeting campaigns, which yielded 17.19% more paid search sessions, a 45% increase in page views, and a 19.01% rise in assisted conversions.
Their expertise has earned them the prestigious SEO Agency of the Year title by Search Engine Land, and they're featured as experts in prominent publications such as Search Engine Journal, Inc., Forbes, The Huffington Post, and more.
Check Higher Visibility's Agency Reviews
Victorious
- Best for: Answer engine optimization
- Average Hourly Rate: Inquire
- Minimum Budget: $1000 - $10,000
- Founded: 2013
- Location: San Francisco, California
- Notable Clients: Unionbay, Salesforce, SoFi, GoFundMe, Wayfair, GE Digital, and more
Victorious' team combines technical SEO, content strategy, and AEO (Answer Engine Optimization) to keep clients ahead in both traditional and AI-powered search. With 12 years of experience and 183+ awards, Victorious builds data-driven SEO frameworks that align directly with business goals and deliver sustainable, long-term results.
Victorious helped Unionbay improve rankings for specific keywords and target a younger audience to rejuvenate its brand image. To reignite interest amongst existing customers, Victorious suggested incorporating semantically related keywords, resulting in high-converting traffic. It also produced SEO content for this demographic, reinforcing Unionbay’s appeal to loyal followers.
For the younger audience, Victorious optimized product descriptions and pages, leading to a 115% YoY organic session increase and 200% organic revenue growth.
Check Victorious' Agency Reviews
Ignite Digital
- Best for: Premium SEO strategies
- Average Hourly Rate: Inquire
- Minimum Budget: Inquire
- Founded: 2008
- Location: Mississauga, Canada
- Notable Clients: Volpe Financial Solutions, PepsiCo, Hydro Solar, Maple Leaf, Peter Smith, and more
Ignite Digital offers digital marketing solutions, including SEM, SMM, and web development. The company's core aim is to help businesses amplify their organic traffic and drive greater site engagement and visits.
Volpe Financial Solutions, a family-owned brokerage specializing in wealth management and insurance services, recognized the importance of staying competitive and attracting prospects. To achieve this, they sought Ignite Digital's expertise.
Its curated strategy focused on ranking life insurance and wealth management keywords, resulting in increased website traffic, improved user-friendly functionality, and a notable surge in leads.
Following this success, Volpe Financial Solutions maintained a prominent presence on Google's first page for targeted keywords and a steady influx of new customers.
Check Ignite Digital's Agency Reviews
Delante
- Best for: Link building
- Average Hourly Rate: $150
- Minimum Budget: $1000 - $10,000
- Founded: 2015
- Location: Krakow, Poland
- Notable Clients: Notino, Dr. Irena Eris, Best Western, Faretti, and more
Delante, an award-winning SEO/SEM agency based in Poland, works towards enhancing online visibility and driving conversions for global companies through bespoke optimizations. Established in 2014, Delante serves diverse industries in over 20 countries.
With growth from a three-person team in 2015 to 50+ in 2025, Delante focuses on understanding each client's unique needs and curate a personalized strategy to address them.
From April to December 2020, Delante supported an international online drugstore with a collaborative link-building strategy, working alongside the drugstore's internal SEO team. They analyzed data to identify suitable keywords, leading to several pages and crucial keywords securing the top 3 and top 10 positions in search engine results.
This complemented the drugstore's internal SEO strategy, contributing to the consistent growth in visibility, website traffic, and a stable online presence for the brand.
Check Delante's Agency Reviews
LinkGraph
- Best for: CRO solutions
- Average Hourly Rate: $149/hr
- Minimum Budget: $1000 - $10,000
- Founded: 2018
- Location: NYC, New York
- Notable Clients: Auto Auction Mall, eBay, The Home Depot, and more
Founded in 2018, LinkGraph specializes in technical SEO, white-label solutions, link building, and CRO for startups to enterprise organizations, driving remarkable growth. With 50+ SEO products, they've rapidly expanded into a global brand.
The company's competitive advantage lies in its proprietary software, SearchAtlas. This innovative tool allows LinkGraph to execute SEO at a greater scale, distinguishing it from competitors.
When Auto Auction Mall launched its new website, it sought LinkGraph's expertise for a comprehensive strategy and complete site migration. The results were notable, with a 46% surge in traffic, a 237% increase in conversion rates, and a 417% boost in goal completion metrics.
Check LinkGraph's Agency Reviews
Sure Oak
- Best for: Bespoke growth strategies
- Average Hourly Rate: $135
- Minimum Budget: $1000 - $10,000
- Founded: 2017
- Location: NYC, New York
- Notable Clients: Mercedes-Benz, GAP, American Red Cross, Milk Bar, and more
Sure Oak is a dedicated SEO agency offering proprietary growth strategies that drive higher rankings and accelerated growth. Their specialized services, from content optimization to premium link building, enhance online visibility and drive organic traffic.
When a digital publication site faced challenges with launching a new website in a saturated market and encountered technical SEO issues, Sure Oak stepped in. They developed an on-page and off-page strategy, addressed technical issues, and launched an extensive link-building campaign to establish the site as an authority.
As a result, organic visits increased by 829% in just one month, with keyword rankings surging from 81 to 4,122, marking a 962% increase. Impressions also skyrocketed from 12,200 to 425,000, indicating a significant growth of 3,384%.
Check Sure Oak's Agency Reviews
Stellar SEO
- Best for: Blogger outreach
- Average Hourly Rate: $125
- Minimum Budget: $10,000 - $25,000
- Founded: 2012
- Location: Nashville, Tennessee
- Notable Clients: 4AllPromos, PracticeMatch, Rosenfeld Injury Lawyers, and more
Stellar SEO's unique approach involves custom discovery, auditing, and planning, to uncover opportunities often missed by standard SEO services. The agency is renowned for top-rated custom link-building and blogger outreach services, as well as technical, site speed, and on-page optimization tactics.
After the December 2021 Core Update caused a decline in traffic and keyword rankings, Stellar played a crucial role in helping 4AllPromos recover. They introduced new SEO tools and provided guidance on their utilization, addressing the issues and implementing necessary changes.
Link building, keyword planning, and content creation led to a significant boost in domain authority and record-breaking monthly revenue from organic traffic in just two months. Stellar SEO's partnership has proven instrumental in boosting 4AllPromos' overall performance and online visibility.
Check Stellar SEO's Agency Reviews
Ignite Visibility
- Best for: Diverse SEO strategies
- Average Hourly Rate: Inquire
- Minimum Budget: $1000 - $10,000
- Founded: 2012
- Location: San Diego, California
- Notable Clients: Tony Robbins, Wedding Wire, DoorDash, 5-Hour Energy, and more
Ignite Visibility specializes in SEO, paid media, social media, email marketing, creative, development, Amazon, and CRO. They serve over 160 esteemed clients, including giants like Office Depot, Tony Robbins, and Morgan Stanley, as well as smaller businesses.
Ignite Visibility provided SEO and email marketing services to a women's fashion brand, collaborating closely with the client.
The challenge was to recover lost SEO rankings after migrating the site to Shopify. The outcome showed significant improvements; namely, traffic doubled, SEO-driven revenue more than doubled, keyword rankings increased notably, and email-driven revenue improved as well.
Check Ignite Visibility's Agency Reviews
How We Picked The Best SEO Companies
To compile this list of top SEO agencies, we evaluated their client roster, testimonials, case studies, industry reputation, team expertise, and executive management. Our team of agency experts created a scoring system to gauge their overall performance based on metrics such as:
- Relevant SEO services catalog
- Coverage of SEO topics on their website and other channels
- The number of SEO projects delivered
- The quality and diversity of the portfolio and success stories
- Notable clients and well-known brands
- Their online reputation on DesignRush, Google, and other platforms
This qualitative process helped us narrow down the cream of the crop SEO providers you can work with on your upcoming project.
Visit our DesignRush Agency Ranking Methodology page to learn more about how we picked the agencies.
10 Most Popular SEO Agencies Compared
| Agency Name | Location | Hourly rate | Size | Best for |
| Searchbloom | Draper, Utah | $100 | Under 49 | Overall |
| SmartSites | Paramus, New Jersey | $100 | 100 - 249 | Integrated SEO strategies |
| HigherVisibility | Memphis, Tennessee | Inquire | 50 - 99 | Retargeting campaigns |
| Victorious | San Francisco, California | Inquire | 50 - 99 | Answer engine optimization |
| Ignite Digital | Mississauga, Canada | Inquire | Under 49 | Premium SEO strategies |
| Delante | Krakow, Poland | $150 | 50 - 99 | Link building |
| LinkGraph | New York City, New York | Inquire | 50 - 99 | CRO solutions |
| SureOak | New York City, New York | $135 | Under 49 | Bespoke growth strategies |
| Stellar SEO | Nashville, Tennessee | Inquire | Under 49 | Blogger outreach |
| Ignite Visibility | San Diego, California | Inquire | 100 - 249 | Diverse SEO strategies |
The Best SEO Companies
16,587 Companies - Rankings updated: April 16, 2026
Every SEO agency featured on DesignRush is evaluated for SEO expertise, service quality, and verified client feedback. Some featured placements may be paid.
Growing Businesses, Delivering Results
Get results, grow your business, and boost sales. Provider Digital is a digital marketing agency in South Yarra that provides bespoke solutions to help businesses optimise their digital presence. Our team of digital marketing consultants will work with you to create a tailored strategy that maximises your [... see all Provider Digital reviews ]- Location
- South Yarra, Australia
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
Let Design, Function, and Strategy Meet!
We create websites and provide businesses with various opportunities to collect leads and make money from unexpected conversions. The custom website company is dedicated to fulfilling needs that our experts can handle. We only make the best promises when it comes to website creation. [... see all Website Design Valley reviews ]- Location
- Montville, New Jersey
- Number of Employees
- Under 49
- Portfolios Count
- 5 Projects Listed
Your Trusted Partner For Digital Innovation
Argenius Company is a forward-thinking digital solutions provider focused on delivering innovative, result-driven services. We specialize in web development, branding, and business growth strategies tailored to modern market needs. Our mission is to help businesses build a strong online presence with smart [... view Argenius profile ]- Location
- Delhi, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $22/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Transforming Ideas Into Exceptional Digital Experiences
Nitai Technologies (OPC) Pvt Ltd is a website and mobile application development company based in Delhi. We help businesses build a strong online presence by designing professional, easy-to-use websites that clearly showcase their products and services. [... view Nitai Technologies profile ]- Location
- New Delhi, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $500/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Your Digital Growth Partner
We create professional, visually striking websites, enhance SEO performance, and strengthen brand identity for businesses in Bangladesh. With tailored web design, SEO, and digital strategies, Arif Web Agency helps brands grow locally and succeed on a global scale. [... view Arif Web Agency profile ]- Location
- Rangpur, Bangladesh
- Number of Employees
- Under 49
- Average Hourly Rate
- $2/hr
- Minimal Budget
- Under $1,000
One Day Studio
One Day Studio is a WordPress-focused digital agency dedicated to building websites that attract customers, drive conversions, and support long-term business growth. Serving over 70 brands across Croatia and the wider EU region, the studio combines design, functionality, and strategy to deliver [... view One Day Studio profile ]- Location
- Zagreb, Croatia
- Number of Employees
- Under 49
- Average Hourly Rate
- $120/hr
- Minimal Budget
- $25,000 - $50,000
The Only SEO Agency That Speaks Bail Bond
RankMyBail is a specialized SEO and digital marketing agency that helps USA bail bond companies rank higher on Google and generate more client calls. We build backlinks, manage citations, and create content exclusively for the bail bond industry. [... view RankMyBail profile ]- Location
- Denver, Colorado
- Number of Employees
- Under 49
- Average Hourly Rate
- $10/hr
- Minimal Budget
- Under $1,000
We Build Start-ups That Scale
NodeOne Digital is a web design and development studio based in St Neots, Cambridgeshire, building bold digital experiences for tech startups and growing businesses across the Cambridge-Oxford Corridor. We hand-engineer every site no templates, no page builders delivering bespoke, performance-driven websites [... view Node One Digital profile ]- Location
- St Neots, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $1,000 - $10,000
The Right Ideas For You
Our capabilities range from logo design and printed materials to photography and illustration. However, our core focus is web design and custom application development. Companies work with us when they need a partner who understands online technologies and want to create a better customer engagement. [... view Big Fat Designs LLC profile ]- Location
- Wausau, Wisconsin
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $1,000 - $10,000
The SEO Agency You Can Trust
Fire Fuel SEO is a digital marketing agency specializing in lead generation for local service businesses through SEO, Pay-Per-Click advertising, and performance web design. Our campaigns are geared at one thing: putting qualified leads into your pipeline so you can book your schedule, keep your team busy, and [... view Fire Fuel SEO profile ]- Location
- Tucson, Arizona
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 2 Projects Listed
We Convert Clicks Into Conversions
Logixtec helps brands realize their full e-commerce potential. With a team of strategists, analysts, and marketing experts, they create data-driven solutions designed to accelerate online sales and drive sustainable growth. [... view Logixtec profile ]- Location
- Billings, Montana
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- Under $1,000
We <Build/> Bold
Tecorbitron is a trusted partner in IT development solutions across a wide range of industries. Founded by experienced technology experts, the company is committed to turning digital visions into reality through innovation and precision. [... view Tecorbitron Solutions Pvt. Ltd. profile ]- Location
- Ghaziabad, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
A Decade Of Experience Across Digital Platforms
With over 10 years of experience, 500+ esteemed clients, and a team of 200+ professionals including 50+ expert developers, Next Gen Web Builders has established itself as a leading digital transformation and marketing agency in the USA. The company delivers high-impact web, mobile, and marketing solutions [... view Next Gen Web Builders profile ]- Location
- Memphis, Tennessee
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
Design That Makes A Difference
Be Good Design Co. is a boutique branding and design studio crafting thoughtful brands, marketing materials, and websites that perform beautifully. From visual identity to digital experience, we design and build brands and websites that look beautiful, feel natural, and connect with your audience. [... view Be Good Design Co. profile ]- Location
- Nanaimo, Canada
- Number of Employees
- Under 49
Dominate Your Industry With Real Time Marketing
Real Time Marketing is a full-service, in-house agency serving home service businesses across the U.S., including plumbers, electricians, HVAC contractors, and more. With 100+ years of combined experience, our team is highly specialized in every aspect of marketing. [... view Real Time Marketing profile ]- Location
- Bradenton, Florida
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
Strategic Web Design For Your Success
Altin Digital is a strategic web studio specializing in web design, copywriting, and SEO for freelancers and small businesses in Germany and Switzerland. They dont create generic website search project is custom-built to not only look great but actively attract and convert customers. [... view Altin Digital profile ]- Location
- Alanya, Turkey
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
We Make It Easy To Sell Online
Trepoly specializes in building high-performing stores on Shopify Plus, BigCommerce Enterprise, and WooCommerce, prioritizing a "mobile-first" philosophy Trepoly ensures seamless conversions across all devices. With over 14 years of experience and hundreds of projects completed, Trepoly provides the technical [... view Trepoly profile ]- Location
- Denver, Colorado
- Number of Employees
- Under 49
- Average Hourly Rate
- $85/hr
- Minimal Budget
- $1,000 - $10,000
Helping Businesses Get Seen And Chosen
Maple Media Works is a full-service digital media and marketing agency dedicated to helping brands grow with clarity and confidence. We combine creative storytelling, strategic planning, and data-driven insights to craft campaigns that truly connect. [... view Maple Media Works profile ]- Location
- Toronto, Canada
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
SEO That Brings In More Leads
201 Creative is a results-driven digital marketing agency specializing in SEO, content strategy, and online growth, helping businesses increase visibility, generate leads, and drive long-term revenue. Digital marketing agency specializing in long-term strategic growth through advertising and SEO. [... view 201 Creative, LLC profile ]- Location
- Poway, California
- Number of Employees
- Under 49
- Minimal Budget
- Under $1,000
Trusted & Professional Digital Partner
Appicia Technologies is a growing IT solutions company based in Gurugram, specializing in delivering end-to-end digital services that help businesses establish and scale their online presence. The company offers a comprehensive range of services including website design and development, mobile application [... view Appicia Technologies profile ]- Location
- Gurgaon, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- Under $1,000
Driving Growth With Data-Driven Digital Marketing
Brandstailer is a performance-driven digital marketing agency in India based in Lucknow, helping businesses grow with SEO, paid ads, and social media marketing. We focus on generating quality leads, increasing brand visibility, and delivering measurable ROI through data-backed strategies. Our approach is [... view Brandstailer profile ]- Location
- Lucknow, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- Under $1,000
Turning Your Vision Into Digital Reality
Studio Aurora is a premium design and development agency built for founders who refuse to settle for average. We believe your digital presence should be an aggressive growth lever, not a static business card. By operating at the intersection of high end aesthetics and technical performance, we transform bold [... view Studio Aurora profile ]- Location
- Manila, Philippines
- Number of Employees
- Under 49
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $1,000 - $10,000
Website Promotion With Guaranteed Results
The company helps clients improve their visibility in search engines, increase the flow of qualified leads, and enhance ROI through modern strategies and technologies, including adaptation to generative search and behavioral factors. [... view SEOJazz profile ]- Location
- Moscow, Russia
- Number of Employees
- Under 49
- Minimal Budget
- Under $1,000
Creative Solutions For The Digital World
Amaris Brand Creation is a creative-driven digital agency that transforms ideas into impactful brand experiences. We blend design, strategy, and technology to craft websites, applications, visuals, and marketing solutions that help businesses stand out and scale. [... view Amaris Brand Creation profile ]- Location
- Visakhapatnam, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
SEO Specializations
- Amazon
- Automotive
- B2B
- Construction
- Consulting
- Dental
- eCommerce
- Enterprise
- for Moving Companies
- Generative Engine Optimization
- Google My Business
- Healthcare
- Hospitality
- Insurance
- International
- Law Firm
- Link Building
- Local Optimization
- Manufacturing
- Mobile
- Multilingual
- Nonprofit
- On-Page Optimization
- Outsourcing
- Real Estate
- Restaurants
- Shopify
- Small Business
- Startup
- Technical
- Veterinarian
- Video
- YouTube
Services Related to SEO
Top SEO Agencies by Country
Everything You Need to Know About SEO Companies
What can an SEO company do for your business?
SEO companies help your business attract more customers from search engines, increase revenue, and build long-term online visibility. Instead of relying on paid ads that stop when the budget ends, SEO creates a sustainable source of traffic and leads.
These are the most important ways an SEO agency contributes to your growth.
1. Increase your qualified, high-intent traffic
An SEO agency positions your website in front of people actively searching for your products or services. Organic traffic converts better because it captures existing demand, not passive attention.
Organic search remains the dominant acquisition channel, driving 53.3% of all website traffic, far exceeding paid and social channels combined. This makes SEO the single largest and most sustainable source of new visitors.
2. Deliver higher ROI than most marketing channels
SEO companies build long-term assets through content, technical improvements, and authority. Unlike paid ads, results continue after the initial investment.
Businesses generate an average 748% return on investment from SEO, meaning roughly $7.48 earned for every $1 spent. This compounding effect makes SEO one of the highest-ROI digital marketing strategies over time.
3. Improve conversion rates and generate more leads
SEO agencies do more than increase traffic. They improve content quality, site structure, and user experience to turn visitors into customers. This directly affects revenue.
SEO leads have a 14.6% close rate, compared to just 1.7% for outbound leads like cold outreach or print advertising. This means SEO traffic is significantly more likely to become paying customers.
4. Strengthen your brand visibility and credibility
Ranking high in search results builds trust and brand authority. Users associate top rankings with credibility, which increases engagement and conversions.
This visibility is critical because 75% of users never scroll past the first page of search results, meaning businesses that rank lower lose most potential customers. SEO agencies help you compete for these high-visibility positions.
5. Protect and grow your traffic through constant optimization
Search engines update their algorithms constantly, and technical performance directly affects rankings and revenue.
SEO agencies monitor performance, fix issues, and adapt your strategy. This is essential because 53% of mobile users leave a website that takes longer than 3 seconds to load, directly reducing traffic and conversions if performance is poor.
Ongoing SEO ensures your site remains competitive, accessible, and profitable.
What is the difference between on-page and off-page SEO?
On-page SEO improves elements on your website, while off-page SEO improves your website’s authority through external signals. You need both to rank competitively.
On-page SEO
On-page SEO focuses on optimizing content and technical elements you control directly on your site. Its goal is to help search engines understand your pages and match them to relevant searches.
Common on-page SEO factors:
- Page titles and meta descriptions
- Headings (H1, H2, H3)
- Keyword-optimized content
- Internal links between pages
- Image alt text
- URL structure
- Page speed and mobile usability
These signals determine relevance and usability.
Off-page SEO
Off-page SEO focuses on signals outside your website that build credibility and trust. Its goal is to show search engines that other sources recognize your site as valuable.
Common off-page SEO factors:
- Backlinks from other websites
- Brand mentions
- Digital PR and media coverage
- Business listings and citations
- Online reviews
These signals determine authority and trust.
On-page SEO makes your site relevant, while off-page SEO makes your site authoritative. You need both to rank. A well-optimized page without backlinks rarely ranks competitively. A strong backlink profile cannot compensate for poor on-page optimization.
What are the common, dangerous SEO techniques to avoid?
Common dangerous SEO techniques to avoid are tactics that try to manipulate rankings instead of earning them. They can trigger algorithmic demotions or manual actions, causing major traffic loss and long recovery cycles.
Google’s spam systems are aggressive, and it reports that SpamBrain helps keep more than 99% of visits from Search spam-free.
SpamBrain is Google’s primary automated spam-detection system that identifies and filters manipulatively optimized or low-quality content before it reaches search results. It uses machine learning to model patterns of abuse rather than rely on hard rules, making it far more effective at spotting sophisticated spam tactics.
High-risk tactics to avoid include:
- Buying or selling links (link schemes)
Paying for backlinks, exchanging links at scale, or using sponsored placements without proper attributes. These patterns are a top reason sites get penalized. This includes many guest post packages and “1000 links for $X” offers. - Private Blog Networks (PBNs), link farms, and spam link blasts
Networks of sites created mainly to pass PageRank, or sudden unnatural link spikes from unrelated domains. You may see a short lift, then a hard drop when Google detects them. - Comment and forum spam
Dropping links in blog comments, profiles, and forums just to create backlinks. These links are usually low quality, easy to detect, often ignored at best, and harmful at worst. - Keyword stuffing and hidden text
Repeating keywords unnaturally or hiding keywords (white text on white background, CSS tricks). These practices degrade readability and are treated as manipulation. - Cloaking
Showing search engines one version of a page and users a different one. This is one of the fastest routes to manual action. - Doorway pages
Creating many thin pages targeting slight keyword variations or locations to funnel users to the same destination. This is a classic spam pattern. - Sneaky redirects
Redirecting users to a different page than the one indexed, or building rankings on one page, then redirecting to an unrelated offer page. - Scraped or copied content
Republishing content taken from other sites with little original value. This includes content spinning and mass duplication. - Scaled low-quality content, including scaled AI spam
Mass-producing pages with little originality, weak usefulness, or no real expertise. Google has explicitly targeted scaled content abuse. - Fake E-E-A-T signals
Invented author bios, fake credentials, AI-generated personas, fabricated case studies, and misleading “expert” claims. Short-term gains that result in a long-term trust collapse. - Fake reviews and reputation manipulation
Posting fabricated reviews, creating fake profiles, or manufacturing third-party review sites. This can harm both SEO and brand credibility. - Parasite SEO and site reputation abuse
Publishing third-party pages on high-authority sites to hijack their ranking signals. Google added a specific policy targeting this behavior.
How to choose the best SEO company for your business?
Choosing the best SEO agency directly affects your traffic, leads, and revenue. The right partner builds long-term growth, while the wrong one wastes budget, locks you into bad contracts, or uses risky tactics that can collapse your rankings.
Follow these steps to evaluate search engine optimization companies properly and select one that can deliver sustainable results:
- Define your goals, budget, and success metrics
Specify your SEO goals, whether you need more leads, ecommerce sales, or local visibility. Set a realistic monthly budget, typically $1,000 to $7,500, and document your current traffic, rankings, and conversions to measure progress. - Write a clear RFP outlining your requirements
Include your website, target market, goals, budget range, timeline, and what you expect the agency to deliver. This forces agencies to propose a real strategy instead of a generic sales pitch. - Request a proposal
The agency should identify technical issues, content gaps, and authority weaknesses, then explain exactly how they will fix them and in what order. - Evaluate their full SEO strategy
A complete plan includes technical SEO, content creation, and off-page SEO. Agencies that focus mainly on backlinks or vague “optimization” lack a sustainable approach. - Verify their past results
Review case studies, traffic growth examples, and verified reviews. Look for measurable improvements in traffic, leads, or revenue, not generic claims. - Ask how they build links
They should use outreach, PR, and content, and comply with Google guidelines. Avoid agencies that buy links, use link farms, or promise fast rankings, as penalties can cause 50% to 95% traffic loss. - Confirm who will do the work
Ensure the agency performs the work in-house or clearly explains its process. Monthly deliverables should include technical fixes, content, and reporting. - Review reporting, communication, and performance tracking
The agency should provide monthly reports on traffic, keyword rankings, and conversions, and explain the actions taken and the reasons for them. - Examine the contract before signing
Avoid long lock-in contracts without exit options. Ensure you own your website, content, and accounts, and that deliverables and timelines are clearly defined. - Compare multiple agencies and choose the best
The best agency sets realistic expectations, explains its process clearly, and focuses on long-term growth instead of shortcuts or guarantees.
What questions should you ask SEO companies before signing a contract?
To choose the right search engine optimization agency for your needs, you have to ask direct questions that reveal their experience, strategy, and fit for your specific business.
These questions help you identify qualified partners and avoid agencies that rely on shortcuts or vague promises.
Relevant Background
- What industries and types of businesses do you specialize in?
- Can you provide case studies showing traffic, ranking, and conversion growth?
- How long have you been providing SEO services?
- Can you share references or verified client reviews?
Services and Processes
- What specific SEO activities will you perform each month?
- How do you conduct keyword research and select target keywords?
- How do you build backlinks and earn authority?
- How do you measure performance and report results?
Related to Your Project
- What opportunities and issues do you see on our website today?
- What results should we expect, and in what timeframe?
- Who will work on our account, and how will we communicate?
- What are your contract terms, pricing structure, and exit conditions?
Why People Trust DesignRush
Rated 4.8 on Google and 4.7 on Trustpilot, DesignRush Agency Directory is a reliable resource for finding SEO agencies. We owe this to our executive selection team, which follows a strict screening process when featuring agencies on the platform, assessing key performance indicators, like portfolio, client reviews, and industry reputation.
Learn more about DesignRush Agency Ranking Methodology.
Sources
DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:
- Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
- The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.
Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.
Frequently Asked Questions About SEO Agencies
What services do SEO agencies provide?
Top SEO companies provide services that improve your website’s visibility in search engines to increase traffic, leads, and revenue. Core services include:
- Keyword research: Identifying search terms your customers use so your pages target real demand.
- On-page SEO: Optimizing titles, meta descriptions, headings, internal links, and content to improve relevance and rankings.
- Technical SEO: Fixing site speed, mobile usability, crawl errors, and indexing issues so search engines can properly access and rank your site.
- Content creation: Producing optimized blog posts, landing pages, and other content that attracts and converts organic visitors.
- Off-page SEO: Acquiring backlinks, earning brand mentions, and managing citations to increase domain authority and ranking strength.
- Local SEO: Optimizing Google Business Profile and local listings to improve visibility in local search results.
- SEO audits and reporting: Analyzing performance, tracking rankings, traffic, and conversions, and refining strategy based on data.
Can SEO companies guarantee a #1 ranking on Google?
No, a professional SEO agency cannot guarantee a #1 ranking on Google. Google’s algorithm is controlled by Google, not agencies, and rankings depend on competition, search intent, site authority, and ongoing algorithm updates.
Search engine optimization companies can improve your chances of higher rankings by optimizing your site, creating quality content, and building authority. They cannot control final positions.
Any agency that guarantees a #1 ranking is using a sales tactic or risky methods that can lead to penalties and traffic loss. Reliable SEO agencies focus on measurable growth such as increased organic traffic, more qualified leads, and higher conversions.
How do SEO agencies measure success?
SEO agencies measure success using traffic, rankings, and conversions from organic search. The primary metrics include:
- Organic traffic: Number of visitors coming from search engines. This shows overall visibility growth.
- Keyword rankings: Position improvements for target keywords. Higher rankings increase traffic potential.
- Conversions: Leads, purchases, or sign-ups generated from organic traffic. This connects SEO to revenue.
- Click-through rate (CTR): Percentage of users who click your result. This reflects how effective your titles and descriptions are.
- Bounce rate and engagement: How users interact with your site. Strong engagement signals relevant traffic.
- Backlink profile growth: Number and quality of external websites linking to you. This reflects authority improvement.
- Return on investment (ROI): Revenue generated compared to SEO cost. This determines the business impact.
How much do search engine optimization companies charge for their services?
SEO agencies typically charge between $500 and $7,500 per month, with most businesses paying $1,000 to $2,500 monthly. Pricing varies based on the agency, scope, and level of competition.
Common pricing ranges include:
- Monthly retainers: $500 to $7,500 per month for ongoing SEO. Large or enterprise companies may pay $10,000 to $50,000+ per month.
- Project-based SEO: $1,000 to $30,000 per project for audits, site optimization, or migrations.
- Hourly consulting: $75 to $300, depending on expertise and provider.
- Performance-based SEO: Custom pricing tied to traffic growth, rankings, or revenue.
Costs increase with competitive industries, larger websites, national or international targeting, and full-service campaigns that include technical SEO, content, and link building.
How long does it take to see results?
SEO typically takes 4 to 6 months to start showing results, and 6 to 12 months to deliver significant traffic and revenue growth. The exact timeline depends on your website and competition.
Typical SEO timeline:
- 1 to 3 months: Research, technical fixes, and content creation. Minimal traffic impact. Early ranking improvements may appear.
- 4 to 6 months: Noticeable ranking improvements, traffic growth, and initial leads or conversions.
- 6 to 12 months: Strong traffic increases, consistent rankings, and measurable business results.
- 12+ months: Maximum impact. SEO becomes a major and stable source of traffic and revenue.
Factors that affect timing include website age, existing authority, competition level, content quality, and budget. New websites often need 6 to 12 months, while established websites may see improvements faster, sometimes within 1 to 3 months.
About The Author and Expert Reviewer
Natasa Glikman is an experienced editor and content writer with over 10 years of experience in writing, editing, and translating articles across various topics, with a strong focus on marketing and advertising. At DesignRush, Natasa currently works as an editor, where she refines and enhances B2B content to ensure accuracy, clarity, and consistency across agency profiles and industry reports.
Robin Fishley is a digital professional with over 20 years of experience in programming, website architecture, and data optimization. Twice honored as Most Innovative Employee at his previous agency, he excelled in leadership roles across SEO, research, analytics, and strategy. At Saatchi & Saatchi, where he was the Director of Search and Data, he developed a successful Big Data analysis tool and provided expert consulting for renowned clients like P&G, Toyota, and VISA. A valuable asset to DesignRush, he used his technical background to drive success for the company's digital initiatives.
