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