The short version
Every SEO agency uses AI to write. The question is what process sits around it: briefs, your expertise in the draft, editing and structure.
Check past client sites for Google penalties before you sign. One spam action can wipe out a year of paid work.
AEO is a layer on top of SEO, not a replacement. A good agency can explain how it gets you cited in AI answers as well as ranked.
Volume matters again. Building topical authority and earning AI citations take far more content than the old two-posts-a-month retainer.
Judge the agency on pipeline from organic search, not on traffic or rankings.
Most founders hire an SEO agency the same way. They collect three proposals, pick the middle price, and start receiving monthly reports full of green arrows. Twelve months later, traffic is up and pipeline isn't. Or traffic was up until a Google update took it away.
B2B SEO is harder to buy well in 2026 than it was two years ago, for three reasons:
Content is now cheap to produce, so the real difference is how it gets produced.
Buyers increasingly ask AI tools before they search.
Google has become far less tolerant of shortcuts.
This guide covers what a B2B SEO agency should deliver, the five checks we'd run before signing one, and what it should cost.
Why B2B SEO is different from B2C SEO
Low search volume is normal, and fine. A keyword with 150 searches a month from people comparing providers can be worth more than 15,000 searches from people who only want a definition.
The buyer is a committee. Content has to work for the person doing the research and for the person signing off on the budget.
Sales cycles run for months. Last-click reports undercount SEO because the first visit and the signed deal can be half a year apart. Our guide to B2B marketing attribution covers how to fix that.
Commercial pages carry the revenue. Comparison, cost, alternatives and use-case pages are where buying decisions happen.
A B2C playbook optimizes for traffic. A B2B playbook optimizes for getting a few hundred of the right people to the page that sells.
What good B2B SEO delivers: pipeline, not traffic
The chain that matters has four links:
Rankings for commercial-intent searches.
Visits to the pages that sell.
Conversations with sales.
Pipeline.
Most agencies report on the first two and stop there.
The gap is usually structural. When we audited 15 B2B websites, not one had a link path from its blog content to the page that sells. Traffic that can't reach the service page will not turn into pipeline, however good the rankings look.
What a B2B SEO agency should actually do
Technical SEO: crawlability, indexing, site speed and site health, so nothing blocks the content from being found.
An ICP-led keyword strategy: keywords chosen from how your buyers actually describe their problem, not from a list of generic industry terms.
Content in clusters: pillar pages with supporting articles that cover a topic completely, rather than one-off posts.
Site architecture and internal linking: every article connects to the service page it supports.
AEO: structuring content and brand presence so AI tools cite you, covered in check 3 below.
Five checks to run before you sign
1. How they actually produce content
Let's be clear: everybody uses AI. You should not expect an agency to have a room of writers producing every post from scratch. That mostly doesn't happen anymore, and it doesn't need to. Google's own guidance says appropriate use of AI or automation is not against its guidelines, as long as it isn't used primarily to manipulate search rankings.
So the useful question isn't "do you use AI?" It is "what happens around the AI?"
Ask to see
A content brief.
A first draft next to the published version.
How they source statistics.
Who checks facts.
How a single post maps to a cluster.
Good answers show a defined content structure:
Briefs built from your ICP and your sales conversations.
Your expertise worked into the draft.
Primary sources for every number.
An outline and link plan settled before anyone writes.
Weak answers sound like "our expert writers" with no process to show, or a dashboard boasting 100 posts a month.
2. Whether their past clients have been penalized
This is the check most founders skip, and the one that matters most. You can do everything right for a year, get hit by a Google penalty, and lose the lot. That is the last thing you need after investing heavily in an SEO agency.
Ask for three client domains you can check yourself. Look at each one's organic traffic history in Ahrefs or Semrush. A sudden cliff that lines up with a Google core or spam update is a warning sign.
Know what Google is targeting. In March 2024, Google introduced three new spam policies against expired domain abuse, scaled content abuse and site reputation abuse. Scaled content abuse is the one an over-eager agency triggers. Google defines it as many pages generated mainly to manipulate search rankings rather than to help users.
Ask directly about manual actions. Sites hit with a spam manual action receive a notice in their Search Console account and can apply to have the action reconsidered. So ask the agency whether any client has received one, and what they did about it. A good agency will have a straight answer.
3. How they handle AEO
Buyers have moved faster than most agencies. In G2's March 2026 survey, 51% of B2B software buyers said they now start their research with an AI chatbot more often than with Google, and 71% rely on AI chatbots at some point in their research.
Our view is that AEO is not a separate discipline. It is very similar to SEO, with an added layer on top. Google says the same about its own AI features: the best practices for SEO remain relevant for AI Overviews and AI Mode, and there are no additional requirements or special optimizations needed to appear in them.
The added layer covers the places where answer engines behave differently from a results page:
Answer-first structure: pages lead with the answer, and include FAQs and definitions an AI can lift cleanly.
Consistent brand facts: the same core facts about your company appear on your site and on third-party sites.
Crawler access: for example, OpenAI recommends allowing OAI-SearchBot in robots.txt to help a site appear in ChatGPT search results.
Citation tracking: someone monitors whether ChatGPT, Perplexity and AI Overviews actually cite you.
Two answers should worry you: an agency that has no AEO plan, and an agency selling AEO as a standalone service with no SEO foundation underneath. Our guide to answer engine optimization covers the full playbook.
4. Whether they can produce enough content
You are going to need a lot of content. Far more than before.
Topical authority means covering a subject completely: definitions, comparisons, costs, use cases and objections. AI answers also lean on sites that cover a question from several angles. A retainer that delivers two posts a month will take years to build a single cluster.
Ask
How many pieces they produce a month.
Who edits them.
What the turnaround time is.
How often existing posts get refreshed.
How they scale volume without quality dropping.
Production capacity is now as important as strategy. An agency with a great plan and no output capacity is selling a plan.
5. How they report
The monthly report should fit on one page and follow the four-link chain from rankings to pipeline:
Rankings for commercial terms.
Visits to service pages.
Conversions.
Organic-sourced pipeline.
AI citations.
If the report leads with impressions and domain rating, it is marketing theater. Push back.
Red flags:
Guaranteed rankings or positions. Nobody controls Google's results.
Links sold in packages, priced per link. These, along with expired domains bought to pass on authority, invite spam actions.
High volume with no briefs, editing or sourcing process to show.
Reports that stop at traffic.
No client domains you can check yourself.
Long lock-ins with no exit clause. Our comparison of retainer and project work covers fair contract structures.
What B2B SEO costs
The best broad benchmark is Ahrefs' survey of 439 SEO providers. It found that SEO usually costs $250 to $10,000 a month, with 63% of businesses spending $500 to $5,000, and that 78.2% of providers charge a monthly retainer.
That survey covers every kind of SEO work, including small local campaigns. A B2B program that includes content at volume, technical work and AEO sits in the upper part of that range.
What drives the price
Content volume.
Technical debt on the site.
How competitive your category is.
AEO scope.
Whether the agency earns links through digital PR.
Do the math on any quote. If the retainer can't fund six to eight well-edited posts a month plus technical work, something is being cut. It is usually the editing.
How mrktrs runs B2B SEO
At mrktrs, SEO and content form the base layer of the Leads Generator. It isn't sold as a standalone service. Each month covers:
Six to eight blogs.
Technical SEO and site health.
Topic clustering and interlinking.
An SEO-tuned content calendar.
AEO is built into every piece, not sold as an add-on.
The work starts from the ICP and positioning defined in Marketing Foundation, so content targets the questions your buyers actually ask. SEO also runs alongside paid acquisition, conversion optimization and sales coordination. Each one feeds the others: content fuels ad creative, and sales feedback refines what we write next. That connection is the difference from a traditional SEO agency, which optimizes its own channel and reports on it in isolation.
Every account is run by a specialist who owns strategy, execution and the weekly review.
Frequently asked questions
How long does B2B SEO take to work?
Most programs show ranking movement on low-competition commercial terms within three to four months. Organic-sourced pipeline usually builds over six to twelve months. A newer domain or a crowded category pushes both later.
How much should B2B SEO cost?
It depends mostly on content volume and technical scope. A useful test: divide the monthly fee by the number of finished, edited pieces it buys, then check whether that per-piece budget covers real editing and sourcing.
How is B2B SEO ROI measured?
Compare twelve months of organic-sourced pipeline against twelve months of total SEO spend. Add a "how did you hear about us" field on every form, because many buyers who first found the firm through search convert later through another channel.
Can a B2B company do SEO in-house instead?
Yes, if it can fund a strategist, an editor, a writing capacity of six to eight pieces a month, and developer time for technical fixes. The hidden cost is volume. A single in-house marketer rarely sustains it alongside everything else.
What is the difference between SEO services and an SEO agency?
SEO services are a scope of tasks: audits, content, links, technical fixes. An SEO agency is the team accountable for the outcome those tasks are meant to produce. A firm can buy services without anyone owning the result.