How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- B2B SEO retainers in 2026 typically run $5,000 to $15,000 per month for growth-stage companies, with enterprise programs higher and boutique options lower.
- Full-service agencies like WebFX suit mid-size B2B firms that want SEO, paid media and conversion work from one vendor.
- Content-led agencies like Siege Media and Grow and Convert suit teams whose problem is traffic that does not convert into demos.
- AI search visibility is now a real service line: ask any agency how it measures citations in AI answers, not just Google rankings.
Quick comparison
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The best b2b seo companies
Starting price$2,900 per month
Free planNo
WebFX is a large full-service agency whose SEO plans start at $2,900 a month, covering a custom strategy, on-page work with copywriting, design and conversion rate support, and ROI reporting through its RevenueCloudFX platform. For mid-size B2B companies that want SEO, PPC and CRO from one vendor, that breadth is the appeal: one contract, one reporting view and one team across channels.
The trade off is boutique attention. A large agency serves many clients, so smaller accounts may get less senior time than at a specialist shop, and B2B proposal forms start at monthly budget bands of $2,500 to $5,000, which sets a floor for serious engagement. For a mid-size B2B firm that wants a full-service retainer with published pricing and a track record, WebFX is the safest first call.
What we like- SEO plans from $2,900 per month
- Custom strategy with copywriting, design and CRO support
- ROI reporting platform
Watch out for- Large agency feel for small clients
- B2B proposal budgets start at $2,500 to $5,000 monthly bands
- Less boutique attention
Starting priceSee website
Free planNo
Directive is a B2B-only agency that has served B2B companies since 2013, organized around technology, industrial and services verticals. SEO sits inside its content practice alongside paid media and revenue operations, which suits companies that want organic and paid planned against the same pipeline target rather than in separate silos. That integration matters for B2B, where a demo request is worth more than a traffic spike.
Pricing is not published and must be quoted, with enterprise programs reaching about $15,000 per month in published comparisons. Minimums suit funded B2B tech and services companies better than early-stage startups. Pick Directive when pipeline, not traffic, is the metric that matters, and when paid and organic budgets should be planned together.
What we like- B2B-only since 2013
- SEO planned against the same pipeline target as paid and RevOps
- Strong in tech, industrial and services
Watch out for- Pricing not published
- Enterprise programs can reach about $15,000 per month
- Minimums suit funded companies better
Starting priceSee website
Free planNo
Straight North is a lead-generation SEO agency whose strength is tracking what actually becomes a lead: forms and calls, not just rankings or traffic. That focus suits manufacturers and B2B service firms that sell by phone and form, where a single qualified call can be worth more than a thousand visits. Reporting centers on leads generated, which keeps the conversation on revenue rather than vanity metrics.
Pricing is not published, and the model is less content-led than rivals like Siege Media, so teams that need a large editorial program may want a different partner. The phone-first approach also suits some firms better than others, particularly those with strong sales teams to handle inbound calls. For lead-driven B2B firms, Straight North's tracking discipline is the reason to shortlist it.
What we like- Lead-generation focus with form and call tracking
- Strong for manufacturers and B2B service firms
- Clear reporting on leads
Watch out for- Pricing not published
- Less content-led than Siege or Grow and Convert
- Phone-first model suits some firms better than others
Starting price$6,000 per month
Free planNo
Victorious is a technical SEO specialist best known for complex sites and replatforming work, where migrations, site architecture and crawl issues decide rankings. It recommends budgets of $6,000 or more per month for 12 months, with a dedicated SEO team and a 24/7 dashboard for reporting. For a company replatforming, merging sites or fixing deep technical debt, that specialization matters more than content volume.
The 12-month recommended term is a real commitment, and content production is thinner than at content-led agencies, so teams needing a large editorial program should pair Victorious with a content partner or choose differently. The price floor also excludes small budgets. Pick Victorious when technical health and migrations are the binding constraint on growth.
What we like- Deep technical SEO and migration expertise
- Dedicated SEO team
- 24/7 dashboard
- Recommends $6,000 plus per month for 12 months
Watch out for- 12-month recommended term is a commitment
- Less content production than content-led rivals
- Price floor excludes small budgets
Starting priceSee website
Free planNo
iPullRank is an enterprise technical SEO agency known for relevance engineering and AI search work on large, complex sites. Its approach treats search relevance as an engineering problem, covering information architecture, entity work and technical foundations that large brands need before content can perform. For enterprise and mid-market brands with sprawling sites, that depth is rare.
Pricing is not published, with published budget bands running from $30,000 to $150,000 and higher for engagements, which puts iPullRank firmly in enterprise territory. Scope can also be complex, since relevance work touches many teams. Small and mid-size companies will find better fits elsewhere, but for a large brand with a complex site, iPullRank is a top-tier technical partner.
What we like- Enterprise technical SEO and AI search expertise
- Relevance engineering approach
- Strong for large, complex sites
Watch out for- Pricing not published, with large budget bands
- Enterprise focus excludes small companies
- Engagement scope can be complex
Starting price$8,000 per month
Free planNo
Siege Media is a content-led SEO agency whose model pairs high-quality content with link building, producing assets that earn links and rank for competitive terms. Content marketing starts from $8,000 per month on a 12-month contract with a 30-day out clause, and AI-assisted workflows keep production efficient without sacrificing editorial quality. Case studies and a creative workflow are central to its pitch.
The 12-month term is a commitment, and pricing sits at the premium end for smaller firms, though the out clause softens the risk. Content focus also means less paid media integration than a full-service agency like WebFX or Directive. Pick Siege Media when content and links are the growth lever, and when the team can commit to a year of publishing.
What we like- Content-led SEO with strong link results
- AI-assisted efficiency
- Content marketing from $8,000 per month on 12-month terms
Watch out for- 12-month contract with a 30-day out clause
- Premium pricing for smaller firms
- Content focus means less paid media integration
Starting priceSee website
Free planNo
Grow and Convert takes a deliberately narrow approach: bottom-of-funnel content aimed at buyers ready to compare and purchase, rather than broad top-of-funnel traffic. That focus suits teams with traffic but few demos, since the problem is conversion, not visibility. Reporting centers on leads and demos attributed to content, which keeps the agency honest about commercial impact.
Pricing is not published, and content volume is lower than high-output rivals, since each piece is researched and aimed at a buying decision. The model also needs a product and sales story worth telling; undifferentiated products get less from it. For B2B teams whose funnel leaks at the decision stage, Grow and Convert's focus is the right medicine.
What we like- Bottom-of-funnel content that targets buyers, not browsers
- Strong for teams with traffic but few demos
- Conversion-focused reporting
Watch out for- Pricing not published
- Content volume is lower than high-output rivals
- Needs a product and sales story worth telling
Starting price$10,000 per month
Free planNo
Omniscient Digital is a content strategy agency for software companies, with full-service programs from $10,000 per month covering SEO strategy, content production and generative engine optimization for AI search. Its work suits software marketplaces and SaaS firms growing through content, with an emphasis on strategy before volume and on measurement against pipeline rather than traffic alone.
Pricing excludes smaller budgets, and the software focus narrows fit for manufacturers or services firms outside tech. The strategy-heavy model also needs real client input on product, positioning and customers, so passive clients get less value. For a software company ready to invest in content as a growth channel, Omniscient Digital is a premium but credible partner.
What we like- Content strategy for software and marketplace companies
- Generative engine optimization services
- Full-service from $10,000 per month
Watch out for- Premium pricing excludes smaller budgets
- Software focus narrows fit for other verticals
- Strategy-heavy model needs client input
How we chose
We compared agencies on B2B focus, service model, published pricing and fit for company stage, using October 2026 agency guides that recorded each provider's own published terms. WebFX SEO starts at $2,900 per month, Victorious recommends $6,000 or more per month for 12 months, Siege Media content marketing starts from $8,000 per month, and Omniscient Digital full-service starts from $10,000 per month. Directive, Straight North, iPullRank and Grow and Convert do not publish pricing, so those are listed as See website.
We also weighed the AI search shift: about half of B2B buyers now start research in an AI assistant, so agencies that measure citations in AI answers, not just Google rankings, earned extra weight. No agency here was hired hands-on for this guide; the picks rest on published services, pricing and documented positioning, not on personal client experience.
What to check before you hire
Define the metric before the meeting. If the goal is demos, demand reporting on demos and pipeline, not traffic or rankings alone. Ask how the agency measures visibility in AI answers, since that surface now shapes early research, and ask for a sample report to see whether leads, not visits, drive the narrative.
Check contract terms carefully. A flat month-to-month fee keeps risk low, while a long lock-in shifts risk onto you, so weigh the 12-month terms at Victorious and Siege Media against their out clauses. Ask who actually does the work, how senior the team is, what happens if results lag, and what the agency needs from you each month. The best B2B SEO engagements are partnerships, and an agency that needs nothing from you will deliver little for you.
Frequently asked questions
How much does B2B SEO cost in 2026?
Most growth-stage B2B companies budget $5,000 to $15,000 per month, with specialist boutiques from about $5,000, mid-market shops from $5,000 to $9,000, and enterprise programs up to $15,000 or more. WebFX publishes SEO from $2,900 per month, while Omniscient Digital full-service starts from $10,000 per month.
How long does B2B SEO take to work?
Most programs show meaningful organic results in six to nine months, with the strongest seeing movement in four to six months. Speed depends on category competition, existing authority and whether the agency targets high-intent comparison queries early. AI answer visibility can move faster than classic rankings with citation-ready content.
Should I hire a full-service or specialist B2B SEO agency?
Full-service agencies like WebFX and Directive suit companies that want SEO, paid and conversion work planned together. Specialists like Victorious for technical work, Siege Media for content and Grow and Convert for bottom-of-funnel content suit companies with one clear constraint. Match the agency's strength to your binding problem.
What is GEO and why does it matter for B2B?
GEO, or generative engine optimization, is the practice of making a brand cited in AI assistant answers, not just ranked in Google. With about half of B2B buyers starting research in an AI assistant, citation in those answers now shapes shortlists. Ask any agency how it tracks AI citations for your category terms.
Do B2B SEO agencies guarantee rankings?
Reputable agencies do not guarantee specific rankings, since rankings depend on competitors, algorithm changes and your site's history. Guarantees of first-page results are a warning sign. Look instead for clear reporting on leads, demos and pipeline, plus honest timelines of six to nine months.
What should I ask in a first agency call?
Ask who does the work, how senior the team is, what the first 90 days include, how results are reported, what the contract term and exit terms are, and what the agency needs from you monthly. Ask for a sample report and for references in your vertical, and check whether AI search visibility is measured alongside classic rankings.
Sources we checked (0)
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.
WebFX
Directive
Straight North
Victorious
iPullRank
Siege Media
Grow and Convert
Omniscient Digital