Every list of the best B2B SEO agencies is written by an agency that put itself at number one. This one is no different, so here is the disclosure up front: Distribb is our platform, it is first, and the section below explains exactly why an agency list should start with software.
What follows is six options that were open and trading on 7 September 2026, with the pricing each one publishes, the results each one puts its name to, and the case where each is the wrong choice. B2B covers a lot of ground, from SaaS to manufacturers to professional services, and the right pick depends on which of those you are.
What a B2B SEO agency does differently
B2B SEO is a different job from consumer SEO, and the difference is volume. The keywords that matter get a few hundred searches a month, sometimes fewer. A page that ranks for one term can be worth six figures because eleven of the right people read it.
That changes what good work looks like:
- Pipeline attribution, not traffic. The measure is demos, trials and closed revenue. Plenty of agencies with B2B in the headline have never tied a piece of content to a single qualified lead.
- Bottom of funnel first. Comparison pages, alternatives pages, integration pages and category terms. These are the searches people run with a shortlist open.
- Answer engines. Buyers now ask ChatGPT, Perplexity and Gemini for a shortlist before they ever open Google. Being cited in those answers is a separate discipline, sometimes called AEO or GEO, and in 2026 it is table stakes rather than an upsell.
- Subject matter depth. In B2B the content has to survive being read by an engineer or a compliance officer. Generic writing does not convert, and increasingly does not rank.
1. Distribb, B2B SEO that runs on autopilot
Best for: B2B companies that want the search work happening every week without a retainer or a hire.
Distribb is a platform that does the agency's delivery work. You connect the site once, and it researches the keywords with buying intent in your category, writes and publishes the comparison, alternatives and category pages that decide shortlists, links them together, earns backlinks through an exchange network of real businesses, and works on getting your brand cited in the AI answers buyers now read first.
It leads this list for a reason that is easy to verify: a meaningful share of small B2B agencies are reselling software under their own logo, adding a monthly call and a report, and charging a retainer for it. When the deliverable is published content, internal links and backlinks, the agency layer is markup on execution you can run yourself. That is also why we sell white label access to agencies, and why the honest recommendation to a founder is to go straight to the source.
Nothing here needs an in house SEO or a weekly marketing meeting to keep moving. Approvals are optional. If you want a person reading every piece before it publishes, that is the Accelerator plan, which includes human review.
Pricing: $97 a month for Pro, $495 a month for Accelerator with human review and higher volume. There is a free trial, and you can see what Distribb runs for SaaS companies before connecting anything.
Limitation, honestly: Distribb is a platform, not a bespoke creative agency. If you need original brand campaigns, analyst relations or a strategist sitting in your exec meetings, hire one of the five below.
2. Optimist, SEO and AEO for B2B tech
Best for: funded B2B software companies that want senior strategy plus AI search work.
Optimist has run B2B tech SEO for a decade and has moved hard into answer engine optimisation. Their model is a freelance collective, with strategists, writers, editors and designers picked per engagement rather than a junior team assigned to your account. Their site names Semrush among the companies they work with, and their published framework covers topic mapping, entity consistency, content architecture, schema and citation signals across ChatGPT, Claude, Perplexity, Gemini and AI Overviews.
Pricing: published, which is rare in this field. A one time roadmap starts at $7,500, with retainers from $3,000 a month for advisory and $4,000 a month for full service.
Limitation: a collective model means the exact people on your engagement change from project to project. Ask who is assigned before signing.
3. Directive Consulting, full funnel search for B2B
Best for: mid market and enterprise B2B teams that want SEO run next to paid and lifecycle.
Directive is one of the larger B2B focused performance agencies, and their SEO offer is explicitly full funnel and tied to revenue reporting rather than rankings. Their service page cites 237% keyword growth and a 50% domain authority lift for Inscribe, and their content practice cites a 38% increase and 4.3 million additional impressions quarter over quarter for Sumo Logic. They also build for AI Overviews and LLM recommendations alongside classic search.
Pricing: quoted per engagement. Expect mid market agency retainers rather than a starter tier.
Limitation: it is a big agency with a big process. Early stage companies that need ten pages published a month will pay for account management they do not need.
4. Stratabeat, B2B SEO with results on the record
Best for: B2B companies that want SEO, GEO and conversion work from the same team.
Stratabeat sits high in the organic results for this term on its own merit, which is a reasonable first filter for an SEO agency. Their B2B SEO page carries the 2026 US Agency Awards SEO Agency of the Year win and specific client numbers: a 7,235.7% organic traffic increase, four times more organic leads, one client adding $41 million in annual revenue. Their service list runs wider than search, including GEO, Reddit marketing, digital PR, web design and conversion rate optimisation.
Pricing: quoted after a strategy call.
Limitation: headline percentages are always the best case in the portfolio. Ask for the median client and the ones that did not work.
5. Siege Media, content and digital PR built for AI answers
Best for: brands that need earned links and mentions at scale, not just pages.
Siege Media built its name on content that earns links, and has repositioned around generative engine optimisation. The services on offer are GEO, consulting, affiliate, digital PR, content marketing and Reddit marketing, across fintech, ecommerce, SaaS and health. If your bottleneck is authority rather than page count, this is the shape of team that fixes it.
Pricing: quoted per engagement, and content plus digital PR programmes sit at the higher end of the market.
Limitation: link earning programmes are slow and expensive by nature. If your product pages are not built yet, this is the wrong first investment.
6. Altitude Marketing, B2B in hard to reach industries
Best for: manufacturers, life science, industrial and other technical B2B companies with small addressable audiences.
Altitude is a B2B SEO and AEO agency built for companies whose buyers are hard to reach: life science, biotech, manufacturing, industrial distribution, specialty chemicals, clinical trials, security technology. That vertical focus matters when the total audience for a product is a few thousand engineers worldwide and the content has to be technically correct to be taken seriously.
Pricing: published on their site, which makes budgeting easy. Their Organic Growth tier runs $9,500 to $12,500 a month, Digital Acceleration $12,500 to $16,000, and Full Integration $16,000 and up.
Limitation: those numbers are the floor for a full service engagement. Below roughly $100,000 a year of committed budget, this is not the right fit.
B2B SEO agency comparison
| Option | Model | Best fit | AI search work | Published pricing |
|---|---|---|---|---|
| Distribb | Autopilot platform | Ongoing content, links and AI citations without a hire | Yes, built in | $97 Pro, $495 Accelerator |
| Optimist | Senior freelance collective | Funded B2B software | Yes, AEO focus | From $3,000/mo, roadmap from $7,500 |
| Directive Consulting | Full service performance agency | Mid market and enterprise B2B | Yes | Quoted |
| Stratabeat | Full service B2B agency | SEO, GEO and CRO from one team | Yes, GEO service | Quoted |
| Siege Media | Content and digital PR agency | Authority and earned mentions | Yes, GEO positioning | Quoted |
| Altitude Marketing | Vertical B2B agency | Manufacturing, life science, industrial | Yes, AEO service | $9,500 to $16,000+/mo |
How much a B2B SEO agency costs in 2026
Three bands, based on what the agencies above publish:
- $3,000 to $5,000 a month. Advisory retainers and lean full service from consultancies such as Optimist. You get senior thinking and a limited amount of production.
- $5,000 to $9,000 a month. The common mid market retainer. A team, a content calendar, technical work and monthly reporting.
- $9,500 a month and up. Full service programmes at agencies like Altitude, where SEO sits inside a wider marketing engagement.
Add the one time costs. Roadmaps and audits are commonly $5,000 to $10,000 before any delivery starts. Then add the runway: nobody in this field promises results before six months, and most contracts are twelve.
Set against that, a platform at $97 or $495 a month is a different order of magnitude, and the trade is real. You give up the strategist and the custom campaigns. You keep the publishing, the internal links, the backlinks and the AI visibility work, running every week.
The best B2B SEO agency for tech companies
For software and technology specifically, the shortlist narrows. Optimist and Directive both work almost entirely with B2B tech, and both build for AI recommendations as well as rankings. Stratabeat covers tech within a broader B2B book. Altitude leans industrial, so it is the wrong pick for a SaaS product and the right one for a device manufacturer.
The question to ask any of them is which pages they would build first. If the answer is a blog calendar rather than comparison pages, alternatives pages and integration pages, they are optimising for traffic reporting rather than pipeline. Those bottom of funnel pages are also the ones AI assistants quote when a buyer asks for options, which is why they earn twice.
If the shortlist is specifically SaaS rather than B2B at large, we compared five of those separately in the SaaS SEO agency roundup.
What an AI powered B2B SEO agency actually automates
Most agencies now describe themselves as AI powered. It is worth knowing which part of the work that refers to, because the answer ranges from a drafting tool to the entire delivery chain.
The pieces that genuinely automate well:
- Keyword and competitor research. Finding the buying searches in a category, and which competitor owns each one.
- Content production. Drafting at volume against a brief, then editing to a house standard.
- Internal linking. Keeping a growing site linked correctly is bookkeeping, and software does bookkeeping better.
- Publishing and scheduling. Straight into the CMS, on a calendar, without a person copying and pasting.
- Link acquisition through an exchange network. Matching sites that will link to each other, without an outreach team sending cold email.
The pieces that do not: positioning, original research with proprietary data, customer interviews, and anything requiring somebody senior to argue with your product team. If an agency is charging a full retainer and the deliverable is only in the first list, you are paying for markup. That is the case Distribb is built on, and the reason white label access exists for agencies who would rather resell the engine than build one.
Specialist or generalist B2B SEO agency
A specialist B2B SEO agency knows your buyer, your sales cycle and your objections before the kickoff call. A generalist has to learn them on your budget. In categories with technical buyers the gap is wide enough to decide the engagement.
Specialists are worth the premium when the content needs domain credibility to be published at all, when the sales cycle involves procurement or compliance, or when your category has fewer than a hundred meaningful keywords and every one has to land.
A generalist is fine when your buyer is a marketing or ops leader, the content is broadly commercial, and the constraint is throughput rather than expertise. In that case the honest comparison is not specialist versus generalist, it is agency versus platform, because throughput is what software solves cheapest. The strategy side of that is covered in our B2B SaaS SEO guide.
FAQ
What does a B2B SEO agency do?
Technical fixes, keyword and page strategy aimed at buying intent, content production, link acquisition, and reporting tied to leads and pipeline. In 2026 it also means answer engine work, so the brand is cited when a buyer asks ChatGPT or Perplexity for a shortlist.
How much does a B2B SEO agency cost?
Retainers commonly run $3,000 to $9,000 a month, with vertical full service agencies publishing $9,500 to $16,000 and up. One time roadmaps and audits typically add $5,000 to $10,000. Platforms cover the delivery work for far less: Distribb is $97 a month for Pro and $495 for Accelerator, which includes human review.
How long does B2B SEO take to work?
Six months is the standard honest answer for competitive terms, with early movement on low competition and bottom of funnel pages inside two to three months. Anyone promising results in weeks is either buying links or counting impressions.
Should a B2B SEO agency handle AEO as well?
Yes. B2B buyers now run part of their research through AI assistants, and the pages that get cited there are usually the same comparison and category pages that rank in Google. Splitting the two across separate vendors duplicates work.
What should I check before hiring a B2B SEO agency?
Ask which pages they build in the first ninety days, who writes them, how they attribute leads back to content, and for two clients in your sector you can contact. Then check the agency's own rankings for their service terms. An SEO agency that cannot rank for its own category is telling you something.
Conclusion
If you have budget and a complicated sale, hire the specialist: Optimist or Directive for tech, Altitude for industrial and life science, Stratabeat for a mixed programme, Siege Media when authority is the bottleneck. All five are real, trading, and specific about what they do.
If what is actually missing is output, the pages, the internal links, the backlinks and the AI citations, then a platform does that job for the price of a rounding error on an agency retainer. You can see what Distribb runs for SaaS companies, or start the free trial and connect your site in a couple of minutes.