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How to choose the right SEO and AEO agency for B2B SaaS

The Rank Master editorial team

Choose an SEO and AEO agency for B2B SaaS on seven things you can verify before you sign: a published price with deliverable counts, a term and notice period you can live with, written ownership of the work, measurement across each AI engine that the agency shows you live, a link policy that passes Google's spam policies, clear approvals and access, and no promise of guaranteed rankings or AI answers. Google's own advice on hiring an SEO supplies most of the classic questions; answer engines such as ChatGPT, Perplexity and Google's AI Overviews add the need to measure each engine and to earn citations. The Rank Master, which publishes this page, is one of the agencies you may be comparing, and the worked example near the end applies the checks to our own published terms.

If you want to run these checks against a programme that gets B2B SaaS companies found in Google and recommended by AI engines, with published pricing, open measurement across all seven AI engines and no annual lock-in, book a 30-minute call.

First, decide whether you need an agency

Google's guidance on hiring an SEO suggests a small local business can take on a large part of its own SEO, starting from Google's own starter guide. A B2B SaaS company is often a different case. If your buyers compare named competitors and ask AI engines for a shortlist before they contact you, the work spans writing, technical fixes, outreach and measurement, every month.

Whether that work belongs with an agency, an in-house hire or a fractional lead is a separate decision, compared in SaaS SEO agency vs in-house vs fractional. This page assumes you have decided to look at agencies.

How we chose these checks

Each check is something you can confirm from a document or a demonstration before signing: a pricing page, a draft contract, a live run of the engines, or Google's own policies. The classic checks come from Google Search Central's page on hiring an SEO, Do you need an SEO? (last updated 5 June 2026), and from its spam policies (last updated 28 August 2026).

The AEO checks follow from how answer engines behave. Each engine assembles its answer from the sources it trusts, so an agency has to measure the engines one by one and earn mentions on the pages they quote. We left out anything a buyer cannot verify in advance, such as promised results.

1. A published price with deliverable counts

A price you can read before the first call lets you compare agencies on your own time, and a count of deliverables lets you check afterwards that you got what you paid for. Some agencies publish neither. Of the twelve agencies that at least two of seven AI engines named for "best SEO services for B2B SaaS" on 16 October 2026, three published no price at all; our guide to B2B SaaS SEO and AEO agency pricing has the full table.

Ask for the monthly fee, the number of pages, citations and fixes each month, and what counts as one of each.

Walk away from a scope "to be agreed" after signing, or a fee with no output attached to it.

2. A term and notice period you can live with

Search work takes months to show, so agencies often ask for a minimum term. The questions are how long it is and what it costs to leave. Terms on agencies' own pages range from month-to-month to a 12-month contract, sometimes with a lower rate for the longer commitment and sometimes with an exit clause that shortens it.

Ask for the first date you can leave, the notice period after that, and whether any discount is clawed back if you leave early.

Walk away from an annual term that renews itself and only surfaces in the small print.

3. Ownership of the work, in writing

Pages, briefs, research, data and any accounts the agency opens for you should stay yours when the relationship ends. Do not assume it. Under US copyright law, work made by a contractor belongs to its author unless a signed written agreement says otherwise (17 U.S.C. 201 and 204), and an agency is a contractor.

Ask for an ownership clause that names pages, briefs, data, analytics and outreach contacts.

Walk away from content hosted on the agency's own domains or accounts, or placements that vanish when you stop paying.

4. Measurement across each AI engine, shown to you live

Rankings and traffic do not tell you whether an engine recommends you, and the engines do not agree with each other. When we asked seven engines for the best SEO services for B2B SaaS on 16 October 2026, no agency was named by all seven, and the most any agency managed was five. AEO vs SEO: what actually changes explains why ranking and being recommended come apart.

So ask the agency which engines it measures and how. Then ask it to run three of your real buying questions across those engines during the call, and to show you who is named and which pages are cited today.

Ask for the list of engines covered, the questions tracked, how often they are run, and access to the raw answers rather than only a score.

Walk away from a single "AI visibility" number with no engine-by-engine detail. Google's hiring page adds a caution that applies here too: it endorses no third-party SEO tool, and none of them can see its internal ranking data.

Citations on other sites are part of both SEO and AEO, so ask how they are won. Google's spam policies class buying or selling links that pass ranking credit as link spam, along with excessive link swaps, automated link building and keyword-rich links in guest posts or press releases. Paid links are acceptable only when they are marked rel="sponsored" or rel="nofollow". The same policies also count attempts to manipulate generative AI responses in Google Search as spam. Google's hiring page is blunt on one point: "You should never have to link to an SEO."

Ask for the link policy in writing, how each placement is earned, and a sample of recent placements.

Walk away from a price per link, a "network" of sites, or links that need payment to stay live.

6. Clear approvals and access

Agree before the start who approves each page, who can publish, and what access the agency gets. For an initial audit, Google advises giving an SEO read access to Search Console and holding back write access, and its hiring page reminds site owners that "you are responsible for the actions of any companies you hire."

Ask for a named approver on your side, a written publishing route, and agreed access levels for Search Console, analytics and your CMS.

Walk away from changes to your site that nobody explains. Google suggests asking an SEO to share every change it makes, with the reasoning behind it.

7. No guarantees, and advice that matches Google's guidance

Google's hiring advice puts it plainly: "No one can guarantee a #1 ranking on Google." The same applies to AI answers, which differ from one engine to the next. Treat any promise of a top ranking or a guaranteed AI mention as a reason to keep looking.

Google also suggests checking whether an agency cites official documentation for its recommendations, and whether its AEO or GEO advice lines up with Google's guidance on optimising for generative AI features.

Ask for the evidence behind each recommendation.

Walk away from claims of a special relationship with Google or with an AI company.

Questions to ask an SEO and AEO agency

Google's page on hiring an SEO suggests interviewing candidates about their record, their methods and how they will work with you. Grouped and put in our own words, with the AEO and commercial questions added:

  • Their record: examples of past work and the results it produced; how long they have been in business; experience in your industry, your markets and international sites.
  • Their methods: whether they follow Google Search Essentials; what results they expect and by when; how they measure success.
  • Working together: how you will communicate, and whether they will explain every change to your site along with the reasoning.
  • AI answers: which engines they measure and how often; whether they will show you today's answers to your buying questions on the call; how citations are earned; who owns the measurement data.
  • Terms: the published price and deliverable counts; the initial term and notice; ownership; who approves each page.

Google adds three habits worth keeping: check references with past clients, be wary of unsolicited emails offering SEO, and notice whether the agency asks about your business, your competitors and how your customers find you. An agency that asks nothing about how your buyers choose cannot build pages for that choice.

A worked example: The Rank Master's answers

Here are the checks applied to our own published terms, so you can see what a complete answer looks like and hold every agency, including us, to it.

Check The Rank Master's published answer
1. Price and counts Launch $2,000 a month for 4 revenue pages and 2 earned citations; Compound $4,000 a month for 8 revenue pages and 4 earned citations; Category $6,500 a month for 14 revenue pages and 7 earned citations; custom programmes from $1,500 a month
2. Term and notice 90-day initial term, then month-to-month with 30 days' notice
3. Ownership Every asset is yours: pages, briefs, data and contacts
4. Measurement Seven engines: ChatGPT, Perplexity, Gemini, Claude, Grok, Google AI Overviews and Google AI Mode
5. Links Citations are won on merit and never bought from a network, and we place no links bought from one; each tier counts 2, 4 or 7 earned citations a month
6. Approvals Your own reviewer approves everything before it publishes
7. Guarantees None: our terms say nobody can guarantee a ranking, a citation or a mention, and we do not; nobody, us included, can directly influence what an AI engine says, only the evidence it reads

Every answer above is published on our own site, including our pricing section, the FAQ and our terms, so you can hold us to each one. If you want to put them to the test, book a 30-minute call.

Making the shortlist

Score every agency on the same seven checks, in writing, before you compare personalities on a call. An agency that answers all seven clearly, and shows you what the engines say about your category today, is worth an initial term; one that cannot answer the first three is not worth the meeting. If you want to apply the checks to us, book a 30-minute call.