How to Choose a B2B SEO Agency: Questions That Separate Specialists from Generalists
Search for “SEO agency” and you will find thousands of firms that all promise the same things: more traffic, better rankings, monthly reports. Most of them are perfectly competent. Most of them are also wrong for you.
The uncomfortable truth is that the SEO industry was built on e-commerce and local search. The standard playbook (high-volume keywords, traffic growth, conversion rate optimisation on product pages) works brilliantly when you sell trainers online or run a dental practice. It falls apart when your average deal is worth six figures, your sales cycle runs nine months, and the person who finds you is not the person who signs the contract.
B2B SEO is a different discipline. Choosing a B2B SEO agency is therefore a different decision, and the evaluation criteria most companies use (portfolio size, traffic graphs, price) will not tell you what you need to know. We have written before about how B2B SEO services differ from the generic version. This article gives you the framework to evaluate the agencies offering them.
Why B2B SEO is a different discipline
Before you can judge an agency, you need to be clear on what makes B2B search different. Four things, mainly.
Low-volume, high-value keywords. The queries that matter to a B2B company often have 30, 50, or 100 searches a month. A generalist agency trained on e-commerce will dismiss these as not worth targeting. They are wrong. If “ERP implementation partner for manufacturing” gets 40 searches a month and one of those searchers becomes a £200,000 client, that keyword is worth more than a 10,000-search term that attracts students and job seekers.
Buying committees. B2B purchases involve multiple stakeholders: the champion who finds you, the budget holder who approves you, the technical evaluator who scrutinises you, the procurement team who negotiates with you. Each of them searches differently and needs different content. An agency that optimises for a single “user” does not understand your buyer.
Long sales cycles. Nobody reads one article and signs a contract. Prospects research for weeks or months, return to your site repeatedly, and compare you against alternatives before they ever fill in a form. SEO strategy for this journey looks nothing like strategy for an impulse purchase.
Pipeline measurement. In e-commerce, you measure revenue from organic sessions directly. In B2B, the conversion happens offline, months after the first visit, often under a different person’s name. Measuring SEO performance in B2B requires connecting organic search to CRM data and pipeline, not just counting sessions in an analytics dashboard.
A specialist B2B SEO agency builds its entire methodology around these four realities. A generalist bolts B2B clients onto an e-commerce playbook and hopes nobody notices.
The questions that expose generalists
You do not need to be an SEO expert to evaluate an agency. You need to ask questions that force them to reveal how they think. Here are the ones that work.
”Which keywords would you target for us, and why?”
Ask this in the first conversation, before any paid audit. You are not looking for a finished strategy; you are looking at how they reason.
A generalist will reach for volume. They will show you the biggest keywords in your category and talk about the traffic opportunity. A specialist B2B SEO firm will ask about your deal sizes, your best clients, and the problems those clients were trying to solve when they found you. They will talk about intent and pipeline value before they ever mention search volume. If an agency cannot explain why a 40-search-a-month keyword might be your most valuable target, keep looking.
”How will you measure success?”
This is the single most revealing question. Listen carefully to the answer.
If the answer is rankings and traffic, you are talking to a generalist. Rankings and traffic are inputs, not outcomes. The right answer involves qualified enquiries, pipeline influenced by organic search, and ultimately revenue. A good B2B SEO company will ask what CRM you use, whether you track lead sources, and how you currently attribute deals, because they know the measurement problem has to be solved before the marketing problem.
If they promise specific ranking positions, walk away. Nobody controls Google, and anyone who claims to is either lying or planning to target keywords so obscure that ranking for them proves nothing.
”Who will actually do the work?”
Many agencies sell with their senior people and deliver with their junior ones. That gap matters more in B2B than anywhere else, because B2B content requires genuine subject understanding. A junior content writer can produce a passable article about running shoes. They cannot produce a credible article about regulatory compliance in financial services, and your buyers will spot the difference in the first paragraph.
Ask who will write your content, how they will learn your subject matter, and how much access they will need to your internal experts. The right answer involves interviewing your team, reviewing your sales calls, and understanding your buyers. The wrong answer is “we have a great content team” with no specifics.
”Can you show me a B2B result, measured in pipeline?”
Case studies are where generalists hide. A traffic graph going up and to the right looks impressive and proves almost nothing. Ask for an example where the agency grew qualified enquiries or pipeline for a company with a considered, multi-stakeholder sale. Ask what the keywords were, what the content strategy was, and how the result was measured.
You are not expecting your exact sector. You are checking whether they have ever operated in your kind of buying environment. An agency whose entire portfolio is e-commerce and local trades is telling you something, however good the numbers look.
”What do you need from us?”
This one catches people off guard, and the answer is diagnostic. B2B SEO done properly requires your involvement: access to subject matter experts, sales team insight, honest conversations about which clients you actually want more of. An agency that says “nothing, we handle everything” is planning to produce generic content from keyword research alone. That content will rank for nothing worth ranking for and convince nobody who matters.
The best agencies are demanding clients of their clients. Treat that as a positive signal.
Red flags worth taking seriously
Some warning signs apply to any agency. These ones are specific to the B2B SEO decision.
Guaranteed rankings or guaranteed timeframes. SEO outcomes cannot be guaranteed. Honest agencies talk in probabilities and ranges.
Traffic as the headline metric. If the proposal leads with “we will triple your traffic,” ask: traffic from whom? Ten thousand visitors who will never buy from you are worth less than fifty who will. Volume-first thinking is e-commerce thinking.
Content volume commitments. “Eight blog posts a month” is a production schedule, not a strategy. In B2B, one deeply researched piece that your buyers actually trust outperforms a month of filler. Agencies sell volume because volume is easy to deliver and easy to invoice.
No questions about your sales process. An agency that designs an SEO strategy without understanding how you sell, who your buyers are, and what a good lead looks like is decorating, not strategising.
One-size-fits-all packages. Bronze, silver and gold tiers signal a productised service designed for small local businesses. Your situation is specific; the engagement should be too.
Vagueness about reporting. Ask to see an example report before you sign. If it is a wall of rankings and sessions with no connection to enquiries or pipeline, that is what you will be staring at every month, wondering what you are paying for.
What a good engagement actually looks like
If you have never worked with a specialist, it helps to know what good looks like, so you can recognise it in a proposal.
It starts with research, not production. Expect the first four to six weeks to be spent on keyword and competitor research, technical auditing, and conversations with your sales team and clients. An agency that starts publishing in week one has skipped the thinking.
The keyword strategy maps to your funnel. You should see keywords grouped by buying stage: problem-aware queries, solution-comparison queries, and high-intent commercial queries, with content planned for each. The dynamics differ by sector; our guide to SEO for professional services firms shows what this looks like in one of the sectors where it matters most.
Content is built with your experts, not around them. Expect interview requests, review cycles, and content that sounds like your firm rather than a content mill. This is slower. It is also the only version that works.
Technical work is prioritised, not endless. Most B2B sites need a focused round of technical fixes, not a permanent retainer line item. Be wary of agencies that keep technical SEO perpetually open as a billing category.
Reporting connects search to pipeline. Monthly reporting should show organic enquiries, their quality, and over time their progression through your pipeline, alongside the leading indicators (rankings, impressions, traffic) that explain the trend.
Honest timeframes. Meaningful B2B SEO results typically take six to twelve months to show in pipeline. An agency that says this in the sales process, when it would be easier to overpromise, is an agency you can probably trust with the budget.
Judging the proposals side by side
When you reach the proposal stage, resist the temptation to compare on price and deliverables. Compare on thinking.
Put the proposals next to each other and ask three questions. First, which agency understood our business? The proposal should reflect your actual situation, name your real competitors, and reference the conversations you had. Generic proposals predict generic work. Second, which agency was honest about uncertainty? Confidence about effort and process is good; confidence about Google’s behaviour is a tell. Third, which agency tied the engagement to revenue? The one that talks about pipeline, deal values, and payback periods is the one that will keep talking about them when the work is under way.
Price matters, but anchor it correctly. A B2B SEO engagement should be priced against the value of the clients it produces, not against the cheapest quote. If one new client is worth £50,000 to you, the difference between a £2,000 and £4,000 monthly retainer is noise; the difference between an agency that produces clients and one that produces traffic is everything.
Talk to a specialist
Seichō is a B2B marketing agency in Dublin, and B2B search is one of the disciplines we have built the firm around: low-volume high-value keywords, content built with your experts, and measurement that connects organic search to pipeline rather than stopping at a traffic graph.
If you are evaluating agencies, use the questions in this article on us too; we would expect nothing less. Take a look at our B2B SEO services, or get in touch for a conversation about whether your situation is one we can genuinely help with. If it is not, we will tell you that too.