Best B2B SEO agencies in 2026, with pricing

What are the best B2B SEO agencies in 2026?

The best B2B SEO agencies in 2026 include Omniscient Digital for full programs from $120,000 a year, RevenueZen from $3,000 a month, TripleDart from $5,000 a month, Optimist from $3,000 a month, Siege Media and Grow and Convert for content-led growth, Omnius for SaaS and fintech, and Fame at $2,000 a month.

Fame publishes this list and sells Fame Search, a B2B SEO and AI search service. Note that Fame is narrower than a traditional SEO agency, with no link-building program, and it has less of a track record here than most agencies listed. The other details come from each agency's own site.

What do B2B SEO agencies charge?

Published prices show a wide spread. The clear gap is between lean retainers near $2,000 to $3,000 and programs at or above $10,000 a month, where a team handles strategy, content, links and reporting together.

Which B2B SEO agencies are worth comparing?

1. Fame

Fame Search connects Search Console and GA4, handles technical fixes, and ships one daily action with up to 10 new or improved pages a month. AI assistant tracking is part of the plan, so you see Google and AI numbers together.

Results are for Fame's own site only, from June 1 to October 30, 2026: 42,966 Google impressions and 41 AI assistant visits in the last 28 days, and 1,416 of 1,610 pages graded A. It has no client results yet.

Who it is not for: companies whose SEO problem is authority and links, teams wanting a strategist on weekly calls in a full-service retainer, and anyone needing CRM pipeline attribution. Contract terms are not published.

2. Omniscient Digital

Omniscient Digital has one of the broadest service menus here, including SEO strategy, programmatic and technical SEO, content, digital PR, links, analytics and conversion work. It reports $400,000 of qualified pipeline for Teambridge through SEO and quotes a Jasper testimonial about blog-sourced ARR. Figures are vendor-published.

Price: from $120,000 a year for full-service engagements.

Who it is not for: early-stage teams, or those who want one service without a broad program.

3. RevenueZen

RevenueZen mixes B2B SEO with interview-led content and LinkedIn. It claims 384% average organic traffic growth across clients, a vendor figure with no stated period. Its pricing is unusually open, down to the exact number of articles per tier.

Price: $3,000 to $15,000 a month, with discounts on 6- and 12-month terms.

Who it is not for: companies seeking heavy link building on a small budget. Links begin at Accelerate, $7,000, and become an add-on at higher tiers.

4. Optimist

Optimist is a good fit for teams wanting senior guidance plus hands-on help. It reports 14x leads from SEO for Glide and 43x signups for Kubera over 15 months, both from its own case studies. Logos include Semrush and Contentstack.

Price: consulting from $3,000 a month. Its contact form lists budget ranges starting at $5,000, so ask what the realistic figure would be.

Who it is not for: companies outside B2B tech and SaaS, where its evidence is thinner.

5. TripleDart

TripleDart brings SEO, paid and GTM engineering together, and reports 275% organic click growth for Glean. It also sells Slate, an AI agent platform. One supplier for paid and organic can simplify things if you already run significant ad budgets.

Price: Organic Growth from $5,000 a month, billed monthly.

Who it is not for: non-tech B2B, or teams that want a small specialist.

6. Siege Media

Siege Media sells content, digital PR and GEO, and its case studies emphasize earned links. It claims over $148 million in yearly client traffic value, reports 1,580+ organic links for The Zebra, and shows logos such as Zendesk and Zapier. Note that traffic value is an estimate-based metric, not revenue.

Price: not published.

Who it is not for: small B2B companies with tight budgets or narrow niches. Its logos skew toward large, high-traffic brands.

7. Omnius

Omnius is a London-based B2B SEO and GEO agency for SaaS, fintech and AI. It reports 227.9% more signups for fintech Myos in 6 months and a 163% rise in HMQLs for Global App Testing over 12 months. Services extend to programmatic SEO, CRO and data analytics.

Price: not published.

Who it is not for: B2B companies outside those verticals.

8. Grow and Convert

Grow and Convert is content-first, with high-intent articles at the center of the offer, and it provides its Traqer AI tracking tool free to clients. It reports #1-#3 rankings for 25+ high-intent keywords for RainforestQA.

Price: not published.

Who it is not for: companies whose main problems are technical or who want SEO, paid and PR together in one retainer, though it does list technical SEO and PPC.

Should B2B SEO and AI search be bought together?

Most agencies here now sell them together, and it is hard to find a reason to split them for a small team, since the same pages feed both. Discovered Labs states it runs SEO and AEO as one service, for example. Larger organizations may still separate them if different teams own content and PR.

A quick test of any shortlist: ask to see how the agency reports Google and AI numbers in one view, and what happens if one rises while the other falls. You can check your own starting point with a free AI readability grader.

How do you judge a B2B SEO agency?

Self-reported percentages are hard to compare, because the starting point matters. Going from 85 to 1,300 clicks is a large percentage on a small base, so ask for the absolute numbers and the time period behind any claim. Then work through these questions:

1. Ask for leads or pipeline results, not traffic value alone.
2. Ask whether the people on the sales call are the people doing the work.
3. Ask how many articles or fixes you get per month, and who publishes them.
4. Check your own approval rights. Fame requires client approval on everything; others vary.
5. Ask what happens to your content and access if you leave. DerivateX, for instance, says you own all it builds.

How did we select and rank these agencies?

We chose agencies that sell SEO to B2B companies and describe it on their own sites, which we read on November 3, 2026. We recorded prices and scope as published and did not estimate any missing figures. We did not test the agencies, and all results are self-reported.

Fame is first because Fame publishes this list, not because of a performance test. We left out other agencies we could not cover in depth, so this is a shortlist and not a census.