Picture two agencies quoting you 3,000 a month. One puts a senior strategist on it for about a day and a half. The other puts a junior on it with a checklist and four drafts a model wrote in an afternoon. Same invoice, completely different purchase. So when a founder asks how much does SEO cost, the useful answer starts with a question back. How many hours, of whose time, doing what?
Everything else in a quote follows from that. Here is how to read one.
A retainer is hours, content and tools. That is the whole cost base
Underneath the deck, an SEO engagement contains three things somebody has to pay for.
Specialist time. Someone senior enough to decide what not to do, which is most of what a B2B SEO strategy is for. This is the expensive part, and it is the part a cheap quote cuts first.
Content production. Briefing, writing, editing, publishing. A retainer that advises on content but does not produce it costs less. It also moves slower, because your own team becomes the bottleneck.
Tools. A rank and crawl platform, one seat. Real money, but small next to the other two, and it is the line people argue about hardest.
If a quote does not tell you how those three split, it is not a quote yet. It is a number.
Where a month of SEO time actually goes
Take a single market and a 20 hour month. That is one workable shape for a company serious about this but not hiring for it. Those 20 hours cover four jobs.
Content briefing and editing takes 8 hours. Technical and site health takes 5. Measurement and reporting takes 4. Keyword and buyer research takes 3. That is the month, gone.
Data table
| Workstream | Hours per month |
|---|---|
| Content briefing and editing | 8 h |
| Technical and site health | 5 h |
| Measurement and reporting | 4 h |
| Keyword and buyer research | 3 h |
Put a blended 120 an hour on it, purely as an example rate so the arithmetic stays visible. The time comes to 2,400 a month. Now add the content. Producing a piece costs more than briefing one, because it carries a writer and an editor. Call it 300 to 1,500 a piece, depending on length and who writes it. Two a month moves the total by 600 to 3,000. Add a few hundred for the platform seat. At the low end that is a little over 3,000. At the high end it is close to 6,000. Same 20 hours, same four jobs, and two honest quotes can sit at either end of it.
The split is the interesting part. Research, the thing most people picture when they picture SEO, is the smallest line on the list.
Three levels, and what changes between them
Engagements cluster into three shapes. What separates them is not effort. It is who does the work.
| Level | What the agency does | What it cannot do |
|---|---|---|
| Advisory | Strategy, keyword and buyer research, technical direction, briefs. Your team writes and ships. | Move faster than your team already moves. If your writers are full, nothing happens. |
| Single market build | All of the above, plus content produced and published, plus the technical work implemented. | Serve a second market properly. Translated pages are not a second market. |
| Multi-market programme | The build, run separately per market: local research, native writing, results read per market. | Stay cheap. Every market carries its own research and its own writer. |
Watch for one mistake in yourself. Buying at the top before the middle has proved anything. Four markets commissioned, and not one qualified conversation out of the first. Then the whole programme gets judged on a blended number that hides which market actually worked.
What a low quote leaves out
A quote can be cheaper for good reasons. Smaller site, one market, your team writing. It can also be cheaper because something is missing. Four things go missing most often.
Implementation. The audit arrives, the fixes do not. Somebody has to open the CMS or argue with your developers. If nobody is funded to do that, the recommendations age quietly inside a slide deck.
Seniority. The person on the sales call sold it. The person on the account started four months ago. Ask who works the hours and how many accounts they carry.
Writing a buyer would actually finish. Cheap content is the easiest place to hide margin. It is also the most expensive thing to repair later, because you end up rewriting pages that have already earned links.
Measurement that survives contact with your CRM. Rankings are cheap to report and prove little on their own. Pipeline is what your board asks about, and joining the two is work somebody has to be paid for.
One more line deserves a straight answer. If a quote promises a set number of links every month, ask who places them and where. That is a different service with a different cost base. Plenty of firms do it properly. It is not the same purchase as the four workstreams above. Put it on its own line so you can judge it on its own.
How to compare two quotes without a spreadsheet
Ask both agencies the same four questions. The gap usually explains itself inside one call.
How many hours a month, and who works them? Is content produced or only briefed? Who implements the technical fixes? What will you report in month six, and where does that number come from?
If one quote is half the other and the four answers match, take the cheaper one. They almost never match. Usually the cheaper quote answers question two with “briefed” and question three with “your developers”. The missing cost did not vanish. It moved inside your team, where nobody is counting it.
At COSEOM® our SEO work runs across languages and reads results per market. A blended report is how a weak market hides behind a strong one. That is a separate conversation, and it starts once you know what a month contains.
FAQ
How much does SEO cost for a B2B company each month?
It moves with hours, content and how many markets you sell in, so any single figure is a guess. Work it from the inputs instead: hours a month times a blended rate, plus content produced, plus a tool seat. The worked example above runs 20 hours at 120, so 2,400 in time. Content adds 600 to 3,000. The platform seat adds a few hundred. That puts one market a little over 3,000 at the low end and close to 6,000 at the high end, and the content line is what moves it.
Is a retainer better than a one-off project?
A project suits a job with an end, like a migration or a technical clean-up. A retainer suits the part that never ends, which is publishing and measuring. Buying a project when you needed a retainer is how audits end up sitting unimplemented.
How long before it pays for itself?
Longer than paid media. Paid media buys attention the day you switch it on and loses it the day you stop. Search runs the other way round, slower to arrive and slower to fade, which is most of the argument for funding it. Rather than guess at a payback date, agree in month one what you will read in month six. Hold both sides to it. Then the review is a reading, not an argument about which metric counts.
Why is one quote twice another?
Seniority and scope, nearly always. Senior hours cost more. Produced content costs more than briefs. Implemented fixes cost more than recommended ones. Ask for the hour split and the mystery goes away.
Does selling in several markets multiply the cost?
Close to it, and pretending otherwise is where budgets break. Sell in four markets and you need four sets of research, four writers who think in those languages, and four separate reads of the result. Translating one market’s pages is cheaper because it is a different and weaker thing.
Should the retainer include writing?
If your team cannot reliably ship two good pieces a month, yes. The common failure is an advisory retainer bought by a team with no capacity to act on it. You pay for briefs that never become pages.
Are tools charged separately?
Ask. Some agencies include a seat, some bill it through, some expect you to hold the licence yourself. It is a small line whichever way it goes. The reason to ask is that the answer tells you whether the quote is itemised at all.
Can a small B2B company do this without an agency?
Yes, if someone owns it for real hours every week. None of the work is secret. It is just persistent, and it competes badly for attention against whatever is on fire this quarter. When an in-house programme stalls, that is usually where it stalled, not on a missing technique.
COSEOM Team
COSEOM is a multilingual B2B growth agency. Since 2008 the COSEOM team has run international SEO, generative engine optimization, paid media and demand generation programs for B2B software and technology companies, in English, German, Spanish and Portuguese. This account publishes our research, playbooks and product guides. More about COSEOM