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Best B2B SEO and content agencies (2026): who writes for pipeline, and who fixes the site

B2B SEO and content agencies try to get a software or services company found in search, and now in AI answers, and to turn that attention into pipeline. Some are editorial teams. Some are technical SEO firms. A few are full-service marketing agencies that include search as one channel.

The website those pages live on is a different hire, covered on B2B web design and brand agencies. Tools for tracking AI search are on AEO tools. Paid media, including agencies that also do SEO, is on B2B paid media agencies.

By Garrett Wolfe, founder of OneGTM (Clay Artisan Solutions Partner) and former GTM engineer at Unify. Updated .

Key takeaways

  • Animalz writes content for B2B software companies, including SEO and thought leadership.
  • Omniscient Digital is an organic growth agency for B2B brands, covering SEO, content, and AI search.
  • Grow and Convert is a content-focused SEO and GEO agency. Siege Media pairs content with design and digital PR.
  • iPullRank works on technical and AI search for mid-market and enterprise sites. Foundation focuses on AI visibility for B2B tech. Seer Interactive covers enterprise SEO and paid media.
  • Directive and Kalungi are broader B2B marketing agencies that include content. Their paid-media positioning is on the paid media list. Retainers are quoted.

Content and organic search for B2B

These agencies are hired for the pages and the search program, not for a full paid-media account.

Animalz

Content marketing agency for software companies. Work includes blogs, longer research pieces, and search-oriented programs for B2B SaaS brands.

Best for: B2B software companies that need a content program

Fees: Retainers not published on the homepage.

Omniscient Digital

Organic growth agency for B2B brands. The site describes SEO, content, and visibility in AI answers, with the work tied to pipeline rather than traffic alone.

Best for: B2B software companies that want SEO and content as one program

Fees: Retainers not published on the homepage.

Grow and Convert

Content-focused SEO and GEO agency. It builds pages around buyer intent and tracks whether content produces leads, and it offers AI-search visibility alongside traditional SEO.

Best for: SaaS teams that want content measured by conversions

Fees: Retainers not restated here. Ask for the current minimum. Third-party roundups quote a floor. Use the agency's proposal.

Siege Media

Content agency that combines writing, design, and digital PR, and now leads with generative-engine optimization as well as SEO. A fit when the asset needs original visuals, not only a draft.

Best for: Content programs that need design and links with the writing

Fees: Fees not published as a single retainer on the homepage.

iPullRank

Search agency for mid-market and enterprise sites. The work covers technical SEO, content engineering, and AI search. It is a fit when the site is large or the implementation is hard.

Best for: Technically complex B2B sites

Fees: Fees not published.

Foundation

Agency focused on AI visibility for B2B technology and SaaS companies. The offer is being recommended in AI answers, alongside the content work that supports that.

Best for: B2B tech companies prioritizing AI search visibility

Fees: Fees not published.

Seer Interactive

Digital agency covering enterprise SEO, AI search, and paid media. Larger than a content boutique. A fit when search and paid sit with one team.

Best for: Enterprise SEO with paid media in the same account

Fees: Fees not published.

Orbit Media

Chicago agency for web design and digital marketing, including content and SEO. Useful when the site and the content program need to be rebuilt together. Design-only studios are on the web design list.

Best for: Companies that need the site and the content program at once

Fees: Fees not published.

Full-service B2B agencies that include content

These two are already on the paid media list because paid is a large part of the work. They are here because content and SEO are also in the offer.

Directive

B2B marketing agency, founded in 2013, with performance, commerce, and communications work covering paid media, SEO, content, and RevOps for technology, industrial, and services companies.

Best for: Larger B2B companies that want paid and search together

Fees: Custom retainers. Prices are not published.

Kalungi

B2B SaaS marketing agency offering CMO-as-a-service plus content, web, paid media, and HubSpot. Full service is aimed at companies around the middle of the startup revenue range. See fractional CMO firms for the leadership model.

Best for: SaaS companies without a marketing leader

Fees: Custom retainers.

Fees are from each agency's own site as of November 2026, or from the description already published on this site's paid media list where noted. This is an opinionated list, not a paid ranking, and nobody paid to be on it.

B2B SEO and content agencies compared

AgencyBest forFee
AnimalzB2B software companies that need a content programNot published
Omniscient DigitalB2B software companies that want SEO and content as one programNot published
Grow and ConvertSaaS teams that want content measured by conversionsNot published
Siege MediaContent programs that need design and links with the writingNot published
iPullRankTechnically complex B2B sitesNot published
FoundationB2B tech companies prioritizing AI search visibilityNot published
Seer InteractiveEnterprise SEO with paid media in the same accountNot published
Orbit MediaCompanies that need the site and the content program at onceNot published
DirectiveLarger B2B companies that want paid and search togetherCustom retainers
KalungiSaaS companies without a marketing leaderCustom retainers

Fees as published on each agency's own site in November 2026. "Not published" means the agency does not list a retainer.

How to choose a B2B SEO or content agency

Ask what they will be measured on in six months. Traffic, rankings, AI citations, and pipeline are different reports. A content team that cannot see your CRM will optimize for the first one.

  • Ask for two B2B examples with the same sales cycle length as yours.
  • Ask who writes, who edits, and whether subject-matter interviews are in the fee.
  • Ask how technical recommendations get implemented, and by whom.
  • Separate content production from digital PR and from paid media.
  • If you need the site rebuilt, hire a design studio as well, or pick an agency that does both and price that scope.

Search traffic still has to become a meeting

OneGTM does not run an SEO retainer. We build outbound and CRM systems, including the routing that decides what happens when someone from an article raises a hand.

If content is producing leads and they die in an inbox, start with lead routing or the outbound page.

  • Articles rank and nobody can say which ones created pipeline.
  • Demo requests wait overnight.

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B2B SEO and content FAQ

What are the best B2B SEO and content agencies?
Animalz, Omniscient Digital, Grow and Convert, and Siege Media are content and organic agencies used by B2B software companies. iPullRank handles technical and AI search on complex sites. Foundation focuses on AI visibility for B2B tech. Seer Interactive and Orbit Media cover search alongside paid or web work. Directive and Kalungi are full-service B2B agencies that include content. Retainers are quoted.
How much does a B2B content agency cost?
The agencies on this list do not publish a single retainer we are willing to repeat without their current proposal. Ask for the monthly minimum, how many pieces that buys, whether digital PR is included, and what happens if your team is slow to publish.
What is the difference between an SEO agency and a content agency?
An SEO agency is accountable for technical health, indexation, and the search program. A content agency is accountable for the pages. Several firms on this list sell both, because a draft that never gets the technical basics right does not get found. Ask which team does which.
Do these agencies also handle AI search?
Omniscient Digital, Grow and Convert, Siege Media, iPullRank, Foundation, and Seer all describe AI-answer or GEO work on their current sites. The methods differ. Ask how they measure a citation, and what they will do if the citation never turns into a lead.
Does OneGTM offer SEO or content services?
No. OneGTM builds outbound and CRM systems. The agencies on this page do search and content.

Content is producing leads and they are dying in an inbox?

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