Best SEO Agencies (2026): Top 9 Compared

Omniscient Digital describes itself as an organic growth agency for B2B software companies. Its service menu covers SEO strategy, generative engine optimisation, programmatic SEO, technical SEO, content production, digital PR, link building, marketing analytics and conversion rate optimisation. The site lists US addresses in Austin, New York, San Francisco, Chicago and Boston.

The agency's positioning is that organic growth is now an authority problem rather than a content volume problem. Its "why us" page says programmes are anchored in ideal customer profiles, buyer pain points, product use cases and positioning, and that success is measured in qualified leads, pipeline influence and revenue rather than traffic alone. It also says strategies are designed for how buyers research software today, including search engines, AI systems, third-party comparisons and review sites.

The published case studies are all software or software-adjacent brands. The site reports that Jasper grew organic sessions 810 per cent and product signups 400 times, Order.co grew blog organic sessions 2,117 per cent, GatherContent grew organic blog sessions 867 per cent and leads 62 per cent, and Smartling generated US$3.7 million of pipeline through organic search. Client testimonials on the homepage come from marketing leaders at TikTok Shop, RightCapital, Convert and Eppo by Datadog. These figures are the agency's own reporting and were not independently verified for this page.

Pricing is unusually explicit for this tier of agency. The "why us" page states that full-service engagements start at US$10,000 a month. Contract length and minimum term are not published.

The same page is direct about poor fits. It lists teams seeking a low-cost execution vendor, teams wanting guaranteed or immediate results, companies without basic positioning or product-market fit, and buyers who want one agency to handle everything. Omniscient does not run paid media, social or email, though it says it refers clients to partner agencies for those channels.

Omniscient fits B2B software marketing teams with an established product and a budget of at least US$10,000 a month who want a strategic organic partner rather than a content supplier.

Skale presents itself as an organic growth agency for tech and SaaS brands, with a stated focus on SQLs, pipeline and revenue rather than traffic and rankings. Its homepage says the agency has spent more than five years building SEO services exclusively for SaaS companies, and its SaaS SEO page says it has worked with over 60 SaaS brands.

The service is organised around a dedicated team. The SaaS SEO page lists four roles on each account: an SEO strategist, a content SEO specialist, a technical SEO analyst and an off-page manager. The process begins with a three-month plan covering optimisation of existing content, new content strategy and off-page work. Keyword research feeds a content model prioritised with frameworks such as RICE, and the technical team is described as having development backgrounds so it can work directly with a client's engineers. Conversion rate optimisation of the visit-to-signup step is also listed.

The homepage groups results by service. Under strategy and execution it cites a 176 per cent revenue increase for Rezi, a 450 per cent rise in monthly signups for Holded and a 120 per cent rise in organic signups for Slite. Under content production it cites a 520 per cent rise in demo requests for Attest and a 2,373 per cent rise in free trials for Flodesk. Under link building it cites organic signup increases for Piktochart and Happy Scribe. Testimonials come from staff at Holded, G2 and Whisbi. These are the agency's own figures.

Skale also positions itself for AI search, describing its work as winning in AI-driven search as well as Google.

Commercial terms are not public. No price, minimum budget or contract length appears on the pages checked, and the SaaS SEO page states that full implementation of the strategy by Skale's team is available at additional cost, which suggests the base engagement is strategy and guidance with optional execution.

Skale fits SaaS companies that measure SEO by product signups and MRR and want an agency whose entire client base is software. Buyers should ask early for a scoped quote and clarify what is included before implementation is added.

Grow and Convert is a content-focused SEO agency founded by Benji Hyam and Devesh Khanal. Its homepage states more than 10 years of operation and more than 100 clients. The agency is known for its "Pain Point SEO" method, which prioritises keywords by buying intent rather than search volume.

The full-service offering now covers SEO and generative engine optimisation. The service page lists buyer and topic research through interviews with the client's sales and product teams, content production, outreach to get placements on sites that AI tools cite, targeted link building, technical SEO and analytics setup. The client team is described as an SEO and GEO strategist, a writer, an analytics specialist and a technical SEO, plus design and development resources, working in the client's Slack.

The production method is interview-led. The SaaS content writing page says each piece starts with a recorded 60 to 90 minute interview with a subject matter expert inside the client company, that writers do not use AI to draft content, and that a regular schedule delivers 3 to 5 finished articles a month. Topics to published article typically take three to four weeks.

Pricing is published. The content marketing service page states a base package of US$10,000 a month, scaling with the number of keywords or articles, with discounts for yearly contracts. The flat rate includes interviews, keyword research, writing, editing, publishing, link building, analytics and reporting; citation outreach for AI visibility is listed as an add-on. The agency states that it does not require a 6 or 12 month contract, while warning that SEO takes at least six months to work. Separate paid search management costs US$3,500 a month plus ad spend.

The homepage case summaries cover a B2B SaaS brand, a lending business and a technical niche. Client testimonials come from Climb Hire and eWebinar.

Grow and Convert fits companies with a high customer value that would rather publish a few conversion-focused articles each month than a large volume of informational content, and that want to test the channel without an annual lock-in.

Siege Media is an organic growth agency headquartered in Austin, with offices listed in New York, Chicago, San Diego and San Francisco. It was founded by Ross Hudgens and now positions itself as a full-service generative engine optimisation agency, offering SEO consulting, content marketing, digital PR and affiliate partnerships.

The agency's approach combines content and design. The content marketing page says almost 50 per cent of content creation time is spent on design, and that the team builds interactive assets such as quizzes, maps and calculators. Data journalists produce original research intended to earn coverage and mentions. The SEO consulting service focuses on product and sales pages, with discovery leading to a six-month roadmap that pairs SEO recommendations with user experience mockups. Technical work such as migrations and Core Web Vitals is handled as needed rather than as the core of the programme.

Client work spans fintech, ecommerce, SaaS and health. The homepage names Instacart, Zendesk, Zapier and The Zebra with reported gains in traffic value and links, and says its work accounts for about US$148.6 million a year in client traffic value. These figures are the agency's own.

Siege publishes its commercial terms more clearly than most agencies of its size. The content marketing page states a current minimum of US$8,000 a month and asks for a 12-month contract, with a 30-day out clause in every contract. Pricing is based on content units tied to time rather than a price per post. The digital PR page says those services start around US$12,000 to US$15,000 a month when creating and promoting PR content, and the affiliate page puts partnership programmes at about US$7,500 to US$15,000 a month including publisher budgets.

The agency states that it does not provide full-service social media management, though it can create social images from its content. Founder Ross Hudgens has written a book on generative engine optimisation published by Wiley.

Siege Media fits established brands in competitive consumer or software categories that want content, links and PR from one team and can commit to a year-long programme.

Directive is a B2B marketing agency founded in 2013. Its homepage states more than 100 marketing strategists, more than 420 brands served and more than US$1 billion in revenue generated for clients, and describes the agency as independent rather than part of a media holding group. SEO is delivered through its content division, which sits alongside paid media, performance creative, programmatic and revenue operations.

The agency's method, which it calls Customer Generation, measures marketing against qualified pipeline and revenue rather than marketing qualified leads. On the content and SEO page, Directive says it plans content around the buyer's jobs to be done and integrates Salesforce and HubSpot analytics so content can be tracked from first interaction to closed deal. Services include content creation, SEO content aimed at high-intent bottom-of-funnel queries, foundational content such as glossaries and resource guides, first-party data research, strategy and consulting, and amplification through social, email, digital PR and link building.

Directive has adapted its briefs for AI search. The page says every content brief now includes an analysis of which sources AI Overviews cite and which formats are favoured, with an emphasis on product-driven content that can earn placement in comparison lists and AI summaries.

Client fit is strongest in technology. The technology industry page names Arctic Wolf, Wiz, Pindrop and Zscaler, and the SEO page includes a Sumo Logic case study in cloud security and cybersecurity reporting a 38 per cent increase in impressions from one quarter to the next. The agency also lists industrial and professional services verticals and a startups service line.

Directive does not publish pricing, minimum budgets or contract terms on the pages checked, and engagements begin with an introductory call. Because SEO is one part of a multi-channel agency, buyers seeking a pure SEO specialist may find the scope broader than needed.

Directive fits B2B technology companies, especially in security and cloud software, that want organic search planned together with paid acquisition and measured in CRM pipeline.

Victorious is a search agency founded in 2013. Its about page says it began as a full-service digital marketing agency and moved to SEO only in 2016. The same page states 1,050 brands served, while the homepage cites more than 600, so buyers should treat these counts as the agency's own. It reports more than 75 awards judged by peers between 2018 and 2025, including US and global search agency of the year titles.

Services cover SEO, answer engine optimisation, content and technical SEO, plus web development. The homepage says work is organised around the client's core products and services, strengthening entity signals and structured content so pages can be understood by both traditional search engines and AI-generated answers. The team page shows separate SEO strategy, technical SEO, content strategy, web development and account management functions, plus an in-house engineering team that builds client dashboards.

The case studies span a wide range of sectors: SoFi and Instant Financial in finance, Felix Gray, Pawrade and Simply Fun in ecommerce, GE Digital, Delta Electronics and a B2B telecom provider in industrial and B2B technology, an enterprise insurer, a travel operator and the NAACP Legal Defense Fund. Reported results include 11,900 additional page-one keywords for SoFi and 252 per cent more organic clicks for GE Digital. These figures are the agency's own.

Victorious publishes a price range in its cost guide, written by its director of search. It states that long-term SEO campaigns at Victorious range from US$5,000 to US$20,000 a month, varying with monthly backlinks, content requirements and the number of pages targeted. The guide explains that the agency works on a 12-month cycle so it can front-load audit and strategy work.

Victorious fits established brands that want an SEO-only partner with a broad industry track record and can commit a year of budget.

WebFX is a large full-service digital marketing agency. Its monthly SEO page states more than 750 staff, a 30-year track record and more than 1,100 client reviews. SEO is sold alongside paid media, web design and other services, and is managed through RevenueCloudFX, the agency's proprietary marketing platform.

The monthly SEO service includes recurring audits, on-page and technical optimisation, link building, content in more than 65 formats, a dedicated account manager, competitor monitoring and first-party data activation such as remarketing to organic visitors. RevenueCloudFX reports calls, form fills and revenue by channel and landing page, so buyers can see cost per lead from organic search in one dashboard.

Pricing is published in two ways. The monthly SEO page says custom SEO plans start at US$3,000 a month. The same page shows four published tiers: an initial two-month campaign investment of US$8,600, US$14,500, US$17,800 or US$21,400, followed by progressive monthly optimisation at US$2,800, US$5,750, US$7,400 or US$9,200 for the subsequent four months of a six-month commitment. A separate SEO pricing guide describes typical market rates and includes a cost calculator.

The case studies on the monthly SEO page are small and mid-sized service businesses: a psychological practice that reports doubling revenue in six months, an IT services firm that reports more than doubling traffic and leads, and a paediatric dental practice that reports a 540 per cent increase in leads from organic search. These are the agency's own figures.

The model suits buyers who value process, reporting and one supplier for several channels. Buyers with complex technical sites or enterprise governance needs should confirm the seniority of the team assigned, since the published tiers are built for scale.

WebFX fits small and mid-sized businesses, especially local and regional service firms, that want transparent entry pricing and lead attribution without assembling separate tools.

StudioHawk is a specialist SEO agency founded in Melbourne in 2015. Its UK business was founded in 2019, and the UK site lists offices in the UK, the USA and Australia. The agency describes itself as an SEO and AI search agency that does not offer general digital marketing.

Two operating choices distinguish it. First, clients work directly with SEO specialists rather than account managers, which the agency says avoids delays and misunderstanding between client and practitioner. Second, it states that it does not use lock-in contracts, relying on results to retain clients. Both points appear on the Australian and UK sites.

The service combines traditional and technical SEO, content marketing, SEO-led content strategy and AI search optimisation. The Australian homepage outlines a typical first three months: campaign set-up, an SEO and AI visibility roadmap, competitor analysis and a technical audit in month one; content and authority audits, E-E-A-T review, technical recommendations and link acquisition in month two; and content briefing, search journey mapping, on-page and entity optimisation and link building in month three.

Documented client fit is broad. On the Australian site, Officeworks is cited with a 60 per cent increase in organic traffic and a 32 per cent increase in organic revenue, alongside a clinician education platform, a local tattoo studio and a retailer operating across two countries. The UK site highlights Damson Madder, a women's fashion retailer, and results for recruitment, home improvement, healthcare and industrial clients. These figures are the agency's own.

Pricing is not published. The FAQ says packages are priced from the client's budget, the site's current state and the work required, and the agency says it has worked with start-ups that have never done SEO. It also offers free SEO training through Hawk Academy.

StudioHawk fits Australian and UK buyers, especially ecommerce and multi-location businesses, that want a dedicated SEO specialist and flexibility to leave without a fixed term.

Embryo is a digital marketing agency based in Manchester that describes itself as a UK-wide SEO agency. SEO is one of several services, alongside digital PR, content marketing, paid social, PPC, affiliate marketing and creative. The homepage says its PPC team manages more than GBP 2 million of monthly Google Ads spend.

The SEO page describes a process that starts with a bespoke strategy and a 150-plus point audit, followed by sector research into which competitors hold visibility across the results pages. The agency uses its own software for this work: Needle, described as an organic search insights tool, and Intermingle, a SERP analysis tool, with Bardo for paid performance. The SEO team combines strategists, technical SEO specialists, content writers and link builders, and clients are assigned dedicated account managers.

The agency states that it works with B2C and B2B companies, with or without ecommerce, and that it has optimised sites for users in Hong Kong, the US and other markets. Local SEO for geographic keywords is also listed. The SEO page names its SEO leadership, including a head of SEO and an organic search director.

Published results are fewer than at some agencies here. The homepage highlights a case study for Native Communities reporting a 175 per cent increase in organic conversions and more than 6,000 website enquiries, combined with PPC results. These figures are the agency's own.

Embryo integrates SEO with its other channels. The SEO page notes that digital PR can add authority to SEO campaigns and that pairing Google Ads with organic work can increase clicks and traffic on core keywords. Buyers who want one UK supplier for organic and paid search may find this useful; buyers who want a pure SEO specialist may prefer an SEO-only agency.

Pricing, minimum budget and contract terms are not published on the pages checked, and engagements begin with an enquiry.

Embryo fits UK businesses that want SEO delivered alongside PR and paid search by one agency, including brands targeting international markets.