Connect with the best SEO agency in the USA to elevate your search visibility. Reviewed by a team of 12 experts, our SEO company directory features providers that boast a 4.5-star average rating from 6,889 verified reviewers.
We have also meticulously created this list of top SEO companies in the United States after evaluating over 7,000 agencies, considering their services, awards, portfolios, industry reputation, pricing, and client reviews. Read on to discover these agencies’ specializations and featured case studies to get one step closer to finding your partner.
The Number 1 SEO Company in the US as Selected by DesignRush Is:
Searchbloom

- Best for: Overall
- Average hourly rate: $100
- Minimum budget: $1,000-$10,000
- Founded: 2014
- Size: Under 49
- Location: Draper, UT
- Notable clients: Nordstrom, XBO Soft, Jitterbug, Shirtspace, NUVI
Searchbloom is an award-winning SEO agency based in the United States, known for its results-driven strategies and transparent service. With over 15 years of experience and a team of expert analysts, it delivers custom SEO and PPC solutions using its proprietary A.R.T. (Authority, Relevancy, Technology) and A.C.E. (Assets, Control, Experimentation) frameworks. Recognized by Backlinko and top media like Forbes and WSJ, it has helped clients significantly boost online traffic, revenue, and ROI without long-term contracts.
Searchbloom Success Story
- Challenge: A US-based mobile notary service struggled with limited organic visibility, ranking for very few top keywords, and missing featured snippets. The poor SEO performance prevented it from capturing online demand during a period of low interest rates.
- Solution: Searchbloom applied its A.R.T. SEO framework to improve rankings. It built authoritative backlinks, refined content to match high-intent search queries, and enhanced website speed and mobile usability to improve user experience and search performance.
- Results: The US SEO agency more than doubled keyword rankings and significantly expanded featured snippet ownership. Organic goal completions surged by 1,461.76%, aligning with market shifts and driving revenue growth from five figures to over $300,000. The campaign also increased site engagement and fortified the client’s position as a trusted industry resource.
Check Out Searchbloom Agency Profile
SmartSites

- Best for: Small business SEO
- Average hourly rate: $100
- Minimum budget: Inquire
- Founded: 2011
- Size: 100-249
- Location: Paramus, NJ
- Notable clients:AGA Truck Parts, A&A Thermal Spray, Rakuten, Rolls-Royce, Air Duct Brothers
Backed by over 20 years of expertise, SmartSites uses proven SEO strategies to drive long-term business success. Its services cover SEO analysis, technical audit, blogging and copywriting, mobile SEO, link building, digital PR, website migration, and SEO consulting. The US SEO agency also specializes in local, national, eCommerce, and franchise SEO. Led by a team of over 100 experts, SmartSites has launched over 900 websites, doubled clients’ organic traffic within 6 months, and generated over $100 million of client revenue.
SmartSites Success Story
- Challenge: A duct cleaning and repair company had an outdated website and brand name that attracted the wrong market. As a result, it was losing business to competitors and experiencing stagnant growth.
- Solution: SmartSites rebranded the client’s business from “First Aid Service” to “Air Duct Brothers,” clarifying the business purpose. It also revamped the website, implemented an intuitive navigation structure, and added SEO-optimized content pages and blog posts. Moreover, the US SEO company launched an aggressive link-building campaign to drive search traffic.
- Results: At the end of the campaign, Air Duct Brothers increased leads by 375% and organic search traffic by 244%, facilitating significant business growth.
Check Out SmartSites Agency Profile
HigherVisibility

- Best for: Multi-location optimization
- Average hourly rate: Inquire
- Minimum budget: $1,000-$10,000
- Founded: 2008
- Size: 50-99
- Location: Memphis, TN
- Notable clients: Caliber Collision, SMARTBOX, BBQGuys, Warner Bros, Ebay
HigherVisibility is an award-winning SEO agency powered by its proprietary Targeted Growth System®. It delivers measurable outcomes such as leads, sales, and ROI. Since 2009, the firm has helped thousands of clients across industries with technical SEO, on-page content strategy, link building, local and eCommerce optimization, and full reporting transparency. Having worked with hundreds of companies from small businesses to Fortune 1000’s, its team is committed to clarity, accountability, and sustainable growth.
HigherVisibility Success Story
- Challenge: Caliber Collision faced rapid expansion and needed a marketing partner to strengthen its digital footprint across multiple locations. Despite strong brand recognition, its online visibility fell behind competitors, limiting its ability to attract high-intent customers in local markets.
- Solution: HigherVisibility combined SEO, local optimization, and conversion-focused content. The agency enhanced site architecture, refined keyword targeting, and optimized location pages to ensure consistent brand performance and visibility across all markets.
- Results: In 12 months, Caliber Collision achieved a 141.51% increase in conversions and a 28.04% boost in organic traffic. The campaign elevated its digital authority, improved user engagement, and established the company as a market leader in the collision repair industry.
Check HigherVisibility Agency Profile
LinkGraph

- Best for: Technical SEO
- Average hourly rate: Inquire
- Minimum budget: Inquire
- Founded: 2018
- Size: 50-99
- Location: New York, NY
- Notable clients: The Home Depot, eBay, P&G, International Olympic Committee, Verkada
LinkGraph is an AI-powered US SEO company trusted by 800+ organizations, including P&G, Shutterfly, and TinyURL. Known for delivering SEO results in 30 days or less, it combines human expertise with proprietary AI agents that perform thousands of optimizations instantly. With over a decade of experience and 250,000+ publisher partnerships, the agency offers holistic SEO strategies that drive up to 5X faster growth. LinkGraph has won numerous awards for its innovation and performance.
LinkGraph Success Story
- Challenge: A local laser hair removal business struggled with poor organic visibility, ranking for only five keywords, and receiving minimal search traffic. Its slow-loading mobile site failed to meet Google’s Core Web Vitals, hurting its ability to rank for local search terms like “laser hair removal near me.”
- Solution: LinkGraph optimized the site’s speed and responsiveness, achieving 90/100 PageSpeed Insights scores and passing Core Web Vitals. The US SEO company also launched a targeted link-building campaign, earning 27 backlinks with local and service-specific anchor text to boost relevance and authority.
- Results: The business saw a 560% increase in organic traffic and a 3,979% increase in total impressions within seven months. It began ranking for high-volume keywords and long-tail local variations, significantly expanding its visibility and click potential in its geographic area.
Check Out LinkGraph Agency Profile
WebFX

- Best for: On-page optimization
- Average hourly rate: $150
- Minimum budget: $25,000-$50,000
- Founded: 1995
- Size: 500-999
- Location: Harrisburg, PA
- Notable clients: KOA, Verizon, FujiFilm, Subway,Wrangler
WebFX is a full-service United States SEO company with over 28 years of experience and a team of over 500 digital experts. It has helped clients generate more than $10 billion in revenue and 24 million leads through data-driven SEO strategies. Its proprietary platform, RevenueCloudFX, connects marketing activities directly to ROI, empowering smarter decisions. Recognized with more than 775 reviews and national awards, WebFX offers tailored SEO plans backed by advanced tech, expert strategy, and results-focused execution across 200+ industries.
WebFX Success Story
- Challenge: KOA, the largest network of campgrounds in North America, wanted to match its broad physical presence with stronger online visibility. It needed to drive more organic traffic and revenue from search engines to boost campground bookings.
- Solution: WebFX created a custom SEO strategy focused on optimizing KOA’s web pages for campground-related search terms, producing original content, improving internal linking, and enhancing technical SEO. It also conducted competitive analysis to identify areas for growth.
- Results: KOA saw a 150% increase in organic traffic and a 160% rise in new users. Organic transactions grew by 198%, and conversions improved by 15%, leading to a 260% increase in organic revenue. The campaign successfully connected more online searchers to KOA campsites.
Check Out WebFX Agency Profile
SEO Brand

- Best for: Local and enterprise SEO strategy
- Average hourly rate: $175
- Minimum budget: $1,000-$10,000
- Founded: 2006
- Size: Under 49
- Location: Bocca Raton, FL
- Notable clients: The Bagel Club, Sotheby’s, LG, Facebook, The Ritz Carlton
SEO Brand is a US SEO agency with over 20 years of experience specializing in SEO, PPC, Amazon optimization, and lead generation. Known for its data-driven, ROI-focused approach, it has helped clients generate over $50 million in Amazon sales alone. It delivers custom strategies through full technical audits, on-page SEO, link building, and local SEO, backed by bi-weekly consultations and real-time reporting. SEO Brand treats every campaign like its own business, focused on results, not fluff.
SEO Brand Success Story
- Challenge: The Bagel Club began as an idea to ship fresh Montreal-style bagels across North America, but it had no website, fulfillment system, or digital presence. Logistics for shipping perishable goods and proving a profitable cost-per-sale model added complexity to the launch.
- Solution: SEO Brand handled everything from market research and UI/UX testing to building an AI-powered logistics engine. It also launched a full digital marketing strategy, including SEO, paid social media campaigns, influencer outreach, and link building to drive traffic and conversions.
- Results: The Bagel Club achieved top 5 keyword rankings and rapid brand recognition, with membership subscriptions growing 15% month-over-month. The new eCommerce business gained thousands of email subscribers and began receiving orders from around the world, all powered by SEO Brand’s digital strategy.
Check Out SEO Brand Agency Profile
Outer Box

- Best for: eCommerce SEO
- Average hourly rate: Inquire
- Minimum budget: $1,000-$10,000
- Founded: 2004
- Size: 250-499
- Location: Akron, OH
- Notable clients: Warehouse Lighting, Oneida, Matco Tools, ABB, Crayola
OuterBox is a US SEO agency with a team of 250+ in-house experts and more than two decades of experience. Trusted by 1,000+ clients, it specializes in eCommerce SEO, lead generation, CRO, and AI-driven strategies. Recognized by Inc. 5000 and Google Partners, OuterBox has earned over 2 million Page 1 rankings. Its integrated services, including SEO, PPC, design, and content are built on a performance-first model that drives real revenue growth for businesses of all sizes.
OuterBox Success Story
- Challenge: Warehouse Lighting faced a decline in keyword rankings and organic traffic and needed a responsive, transparent SEO partner to address the impact of recent Google algorithm updates . The company wanted to regain visibility and boost online sales across its diverse lighting product lines.
- Solution: OuterBox conducted in-depth keyword research and implemented a targeted on-page SEO strategy, optimizing titles, headers, and content to enhance online visibility. It also made critical technical improvements, including code cleanup, faster load times, and enhanced site speed to improve performance and crawlability.
- Results: Warehouse Lighting achieved a 110% increase in organic traffic, a 119% rise in organic transactions, and a 105% boost in organic revenue. The brand also ranked high for competitive keywords like “warehouse lights,” “high bay lights,” and “industrial LED lighting,” reinforcing a strong SEO foundation for continued growth.
Check Out OuterBox Agency Profile
KlientBoost

- Best for: SEO-focused content strategy
- Average hourly rate: $100
- Minimum budget: $1,000-$10,000
- Founded: 2015
- Size: 100-249
- Location: Costa Mesa, CA
- Notable clients: Excedr, Lenovo, Airbnb, SAP, Standford University
KlientBoost is a United States SEO company known for helping brands double revenue without doubling budgets. With 250+ active clients and over 600 published success stories, it offers data-driven SEO, CRO, PPC, and email marketing strategies. KlientBoost combines technical expertise with creative content and high-impact backlinks to boost rankings and conversions. Its proprietary BoostFlow™ system tracks and prioritizes SEO experiments, ensuring transparency and continuous performance improvement for clients across SaaS, eCommerce, and lead gen industries.
KlientBoost Success Story
- Challenge: Excedr, a provider of lab equipment leasing for scientists and researchers, wanted to grow its website traffic and generate more qualified leads. Despite offering valuable services, the company lacked strong search visibility for key industry terms.
- Solution: KlientBoost implemented an SEO-focused content strategy that included on-page optimization, internal linking, and authority-building blog content. The agency targeted high-intent keywords such as “Lease Lab Equipment” and improved Excedr’s content quality and site structure.
- Results: Excedr achieved a 702% increase in organic traffic and a 1,512% increase in conversions. The company also secured the #1 ranking on Google for key terms such as “Lease Lab Equipment” and “Lab Equipment Leasing,” which significantly boosted its online visibility and lead generation.
Check Out KlinetBoost Agency Profile
Digital Silk

- Best for: Off-page SEO
- Average hourly rate: $150
- Minimum budget: Inquire
- Founded: 2015
- Size: 100-249
- Location: New York, NY
- Notable clients: ABC Senior Services, IBM, Sony, Microsoft, XEROX
Digital Silk is a premium SEO agency trusted by global brands, including Sony, IBM, and P&G. With a 5-star rating on DesignRush and recognition as a top agency by Forbes, it specializes in full-service SEO strategies, including SEO audits, technical SEO, content creation, and reporting and optimization. Founded to help brands grow online, it offers in-house expertise across UX/UI, technical SEO, and content marketing. Digital Silk delivers measurable results — such as 200%+ traffic growth — through tailored strategies that boost rankings, engagement, and conversions.
Digital Silk Success Story
- Challenge: Always Best Care Senior Services struggled with poor search visibility, a weak online presence, and a cluttered, outdated website design. Its domain rating was 53, and the site lacked high-quality backlinks to build authority and compete in search rankings.
- Solution: Digital Silk developed and executed a comprehensive SEO strategy focused on on-page and off-page optimization. The US SEO agency restructured the website’s content to align with target keywords and enhance relevance, while also launching a backlink campaign to boost domain authority. It also performed a full site redesign with streamlined navigation and modern visuals.
- Results: Thanks to the SEO campaign, Google impressions surged to nearly 1 million, reflecting increased visibility in search results. The website saw a 118% increase in user sessions, a 13% longer average time on page, and a 9.8% drop in bounce rate.
Check Out Digital Silk Agency Profile
OneLittleWeb

- Best for: Link-building
- Average hourly rate: Inquire
- Minimum budget: $1,000-$10,000
- Founded: 2018
- Size: Under 49
- Location: New York, NY
- Notable clients: SPECIALIZED, Line Out, Hennessey Digital, ScrapingAnt, Writerbuddy
OneLittleWeb is a United States SEO and link-building agency trusted by over 1,200 clients since 2018, including top B2B, SaaS, and enterprise brands. It specializes in high-authority (DA 50–90) backlinks, technical SEO, and AI-optimized strategies designed to rank across search engines and LLMs like ChatGPT. Offering 30-40% cost savings compared to in-house teams, it provides risk-free 30-day trials, customized SEO audits, and performance-driven content strategies — all led by in-house experts for measurable, scalable growth.
OneLittleWeb Success Story
- Challenge: A leading food and recipe blog with thousands of high-quality posts struggled to scale organic traffic in a saturated, competitive niche. Despite solid content, the site lacked the authority needed to compete at the top of search results.
- Solution: OneLittleWeb implemented a multi-channel link-building strategy based on seasonal keyword trends, competitor analysis, and targeted outreach. It secured high-authority placements through digital PR, content clustering, and relationship-building with niche-relevant publishers.
- Results: The campaign drove a 138% increase in organic traffic, adding over 108,000 new monthly visitors. The site gained 138 high-quality backlinks from domains like Forbes (DR 94) and Cleveland (DR 86), which boosted its domain rating from 51 to 72, achieving long-term growth in recipe-related rankings.
Check Out OneLittleWeb Agency Profile
How We Picked the Best United States SEO Agencies
To determine the best SEO companies in the United States, we conducted a comprehensive evaluation of each agency’s client roster, verified reviews, in-depth case studies, and overall reputation. We also considered the agency’s team expertise, leadership, and ability to consistently deliver measurable, high-impact SEO results across industries. The top-performing agencies stand out for their commitment to quality, data-driven strategies, and long-term client success.
- Reviews: Evaluate client satisfaction, campaign impact, retention rates, and overall reputation
- Portfolio: Analyze SEO case studies that show improved rankings, traffic growth, link authority, and conversion increases.
- Awards and recognitions: Consider industry accolades, achievements, and reputation.
- Team bios: Review team structure and expertise in technical SEO, content strategy, analytics, and algorithm updates.
- Top services: Identify capabilities in on-page SEO, technical SEO, link building, local SEO, eCommerce SEO, and mobile-first optimization.
- SEO expertise: Assess ability to solve complex SEO challenges across industries, including Core Web Vitals, schema markup, international SEO, and intent-based content.
For a detailed breakdown of our evaluation process, visit the DesignRush Agency Ranking Methodology.
Top 10 SEO Companies in The US Compared
Agency Name | Location | Hourly Rate | Size | Best For |
Searchbloom | Draper, UT | $100 | Under 49 | Overall |
| SmartSites | Paramus, NJ | $100 | 100-249 | Small business SEO |
| HigherVisibility | Memphis, TN | Inquire | 50-99 | Multi-location optimization |
| LinkGraoh | New York, NY | Inquire | 50-99 | Technical SEO |
| WebFX | Harrisburg, PA | $150 | 500-999 | On-page optimization |
| SEO Brand | Bocca Raton, FL | $175 | Under 49 | Local and enterprise SEO strategy |
| OuterBox | Akron, OH | Inquire | 250-499 | eCommerce SEO |
| KlientBoost | Costa Mesa, CA | $100 | 100-249 | SEO-focused content strategy |
| Digital Silk | New York, NY | $150 | 100-249 | Off-page SEO |
| OneLittleWeb | New York, NY | Inquire | Under 49 | Link-building |
Best US SEO Company for Your Next Project
DesignRush evaluates SEO companies for SEO expertise, campaign performance, and verified client reviews to help businesses choose confidently. Some listings may be paid.
SEO Agencies by State
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- Washington DC
- Wisconsin
- Wyoming
SEO Specializations in the US
Frequently Asked Questions About SEO Agencies
What services does an SEO company in the US typically provide?
Search engine optimization agencies in the US offer comprehensive packages that span website, content, and off-page optimization to improve visibility in search engine algorithms and secure first-page rankings for high-value, business-relevant keywords. Their services typically combine content and technical SEO, including site speed improvements, mobile responsiveness, crawlability enhancements, and schema markup implementation - ensuring your business is positioned prominently in the SERPs (search engine results pages). When paired with strategic link building, local SEO for geographic targeting, and ongoing performance analysis to refine strategies, this holistic approach drives sustainable growth and measurable ROI in competitive digital landscapes.
Common services include:
- Audits
- Content marketing
- Local SEO
- On-page SEO
- Link building
- SEO Performance Analytics
In terms of demand, Searchbloom's insights indicate the following:
- Local and multi-location businesses focus on fine-tuning their location data, reviews, and optimizing their Google Business Profiles and map presence as part of targeted local SEO efforts.
- Businesses with national SEO campaigns prioritize content strategy, internal linking, and link building initiatives to scale authority and improve nationwide search rankings.
- ECommerce clients require managing catalogs, feeds, schema, faceted navigation, and parameterized URLs, as part of a broader eCommerce SEO strategy, often with local inventory in the mix to support both organic discovery and conversions.
How much does a typical SEO agency in the US?
The majority of these agencies across the US operate on a custom monthly retainer model, wherein the service fee is determined by the competitive gap, current site authority, type of SEO service, and client location.
Pricing can also vary depending on whether a business works with a boutique SEO company or a full-scale SEO firm offering broader digital capabilities.
Here's what businesses can anticipate:
- The retainers go from $2,000 per month onwards.
- One-time initiatives like SEO audits or content work entail a fixed project fee and are often part of short-term SEO consulting engagements.
- There's typically a one-time onboarding cost of $500-$850 to handle CMS signup, audit tool configuration, Google analytics setup, and resource allocation.
- For high-competition markets or large sites (500+ pages), the quoting is done case-by-case and usually covers 30–50 monthly rewrites, advanced technical SEO, extensive keyword research, and full-on content integration.
- Agencies rarely charge by the hour for professional SEO services.
When can companies expect ROI from SEO services?
In general, outcomes depend on competitiveness, the state of the search engine landscape, and the client's current performance. The pace and SEO strategies looks different for different niches:
- Low competition sectors see results within 45-90 days
- Mid competition clusters notice the most progress in the 3 to 6 month-range
- Highly competitive verticals take 6 to 12 months to see meaningful results
Early gains usually show up as cleaner indexation, stronger crawl signals, and improved long-tail visibility. As momentum builds, businesses may notice movement on priority terms, more qualified traffic, and stronger conversion performance.
As estimated by Rock Salt Marketing Cooperative, results tend to progress as follows:
- Month 1-3: Early ranking and traffic gains
- Month 3-6: Increase in qualified leads
- Month 6-12: ROI turns positive
- After the first year: Exponential growth and stable revenue tied to traditional and AI search
How much output do SEO agencies deliver in a typical month?
SEO timelines usually come down to how much needs fixing, how much content needs building, and how tough the competition is.
As described by Funnel Boost Media, how the overall output is dispersed depends on the service tiers and the defined SEO strategy:
- Basic SEO: Typically includes 10 to 15 hours of work per month, covering technical SEO, a light content plan (two to three pages), a site audit, minimal outreach, and baseline SEO reporting.
- Standard SEO: Standard tiers are commonly framed as a service of 15-25 hours per month once the initial strategy is delivered, covering ongoing technical SEO, copywriting, recurring SEO audits, and link building outreach. Content creation for the set strategy is finalized within sixty days, supported by keyword research.
- Advanced SEO: For larger or more competitive sites, service often entails 25-60 hours per month, depending on budget and competition. The package includes in-depth audits, extensive content creation (20-30 pages per month), intensified link building, ongoing technical SEO maintenance, and performance monitoring by a dedicated SEO expert.
How has AIO/AEO changed the work SEO agencies deliver?
AIO (AI optimization) or AEO (answer engine optimization) have set a new standard for search engine optimization work. Sites now need stronger schema, cleaner internal linking, consistent product and service definitions, and an information architecture that reflects the brand's full keyword system, so AI-driven search engines can interpret them correctly.
Rankings alone are no longer the sole priority, as businesses are taking a keen interest in how they appear in AI-generated answers. This new paradigm has prompted SEO agencies to work toward entity control, deeper topical coverage, and reinforcing the technical signals AI relies on.
Client demand also reflects this change, with firms reporting around 30% increase in requests tied specifically to AI and answer engine visibility.
About The Author and Expert Reviewer
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.





















































