Best content SEO agencies for B2B services (2026)
6 agencies offer Content SEO and have verified B2B services work. Ranked by our composite score, recomputed on every build.
The three highest scoring content SEO agencies for B2B services are Quillmark (71/100, London), Kestrel & Wren (51/100, Edinburgh) and RevenueZen (50/100, Portland). All 6 agencies on this page list Content SEO as a service and have verifiable B2B services work. 1 of them is verified, and 2 publish pricing.
Ranked list
Score out of 100. How we ranked these
| # | Agency | Score | HQ | Budget | Best for |
|---|---|---|---|---|---|
| 1 | Quillmark GEO · Digital PR · Content SEO | 71 | London, GB | $15k+/mo | Verified finance, B2B services |
| 2 | Kestrel & Wren GEO · Content SEO · SEO | 51 | Edinburgh, GB | $2k-$15k/mo | Claimed finance, SaaS |
| 3 | RevenueZen SEO · GEO · Content SEO | 50 | Portland, US | $2k-$15k+/mo | Listed SaaS, healthcare |
| 4 | Sable Labs GEO · Content SEO · AEO | 49 | Amsterdam, NL | $5k-$15k/mo | Claimed education, SaaS |
| 5 | Ten Speed GEO · AEO · SEO | 37 | Chicago, US | $5k-$15k/mo | Listed SaaS, education |
| 6 | Shila GEO · Technical SEO · Content SEO | 21 | Lisbon, PT | Under $2k to $5k/mo | Listed SaaS, B2B services |
How we ranked these. Every agency on this page lists Content SEO as a service and has at least one verifiable B2B services client or case study. Order is the composite score: third-party reviews (30), founder credibility (25), company track record (20), the agency's own AI visibility (15) and transparency (10). Unverified claims score zero. No agency pays to appear or to rank. Full methodology.
Frequently asked
What does a content SEO agency do for a B2B services company?
Research, writing and refreshing of pages built to rank and to be cited. For B2B services clients that usually means content shaped around the questions buyers in that market ask, third-party mentions on sources the models trust, and a tracked set of prompts to measure progress.
How much does a content SEO agency cost for B2B services?
Monthly retainers run from Under $2k to $15k+. 2 of the 6 agencies on this page publish pricing on their own site; the rest quote on request. Budget bands are the retainers each agency says it takes, read from its site or its review profiles.
How are these content SEO agencies for B2B services ranked?
By a score out of 100 with five parts: third-party reviews on Clutch, G2 and Google (30), founder credibility (25), company track record (20), the agency's own visibility in AI answers (15) and transparency (10). Every proof needs a URL we can open, unverified claims score zero, and the score is recomputed on every build. No agency pays to appear or to rank.
How many of these agencies are verified?
1 of 6. Verified means the agency claimed its profile and we checked every proof on it with them. Claimed means the agency has confirmed the facts and the re-check is in progress. Listed means the profile was written from public sources and has not been claimed.