Answered straight

Will your SEO agency work with your competitors — and can you stop it?

The short answer

Usually yes, and the exclusivity clause you were shown probably doesn't stop them. Most clauses name a handful of companies, define "competitor" nowhere, and carry no remedy for breach. Exclusivity is only a real commitment at low client counts — an agency running sixty accounts cannot honestly promise it in any category worth having.

Updated 13 August 2026 · Written by the Last Agency team · See what SEO actually costs

The short version

  • A free exclusivity promise costs the agency nothing to give and nothing to break. Price is the tell.
  • Define competitor by query overlap and geography, never by a list of company names. The list is stale the week you sign it.
  • The conflict that actually costs you isn't strategy leaking — strategy gets copied anyway. It's shared link inventory and a shared content template, which make you and your rival look like one operation.
  • You can check most exclusivity claims from outside in about an hour: footer credits, case-study pages, and a referring-domain intersection across your competitor set.

The honest answer, and why the clause you were shown doesn't help

Most agencies serve more than one client per category, and there's a defensible reason for it. Category knowledge is a large part of what you're buying — the agency that has already learned how IVF clinics get reviewed, or how a steel trader's buyers actually search, is worth more than one starting cold. That knowledge came from somebody else's account.

So the question isn't whether agencies do it. It's whether the clause in your draft contract does anything about it. Usually not, and usually for one of six reasons.

  • It names a list. Four companies, agreed in the pitch, frozen in an annexure. Every new entrant, every pivot, and every marketplace that outranks all of you sits outside it.
  • "Directly competing" is left undefined. Which means the agency defines it, later, in a dispute, as narrowly as it needs to.
  • It carves out existing clients. Which is precisely where your competitor already is.
  • It has no geography, or only geography. A national bar is unaffordable and won't be honoured. A city bar is meaningless if your buyers search nationally.
  • It has no remedy. No refund, no termination right, no liquidated damages. A promise with no consequence is a preference.
  • It expires with the initial term. Three months of exclusivity on a two-year relationship.

Define a competitor by query overlap, not by name

A workable definition has to survive the next eighteen months without anyone updating it, and it has to be checkable by both sides without an argument. Names fail both tests. Queries pass both.

The version that works: take your top thirty non-branded target queries and the geography you sell into. Anyone else trying to rank for those queries in that geography is a competitor for the purposes of this clause. That definition is objective, it's dated, and it updates itself when the market moves — you just re-run it each quarter and attach the new list.

Three ways to define a competitor in an exclusivity clause.
DefinitionWhat it coversWhat it misses
A named list in the annexureThe four rivals you happened to think of during the pitchNew entrants, adjacent categories, and the aggregator outranking all of you
Same industry, no geographyBroad category peers, on paperNothing useful. A Chennai dental clinic and one in Ludhiana never meet in a SERP.
Query overlap within a named geographyAnyone competing for the same organic real estate you areRivals you don't yet rank against — which is why the list gets refreshed quarterly

What exclusivity should cost, and why free is not a price

The arithmetic is simple enough to do on a napkin, and doing it explains almost every strange answer you'll get in a pitch.

An agency has capacity for some number of accounts. Granting you exclusivity in your category means declining every other buyer in that category for the length of your contract. Priced honestly, the cost is the expected value of the slots forgone — which depends on how many buyers your category produces each year and what they'd each be worth. In a category with two viable buyers a year, that's nearly nothing. In Indian real estate or edtech, it's a large number.

Which is why the price tells you more than the promise does.

  • A large agency can offer it cheaply because it costs them nothing. With a narrow enough definition, no slot is ever actually forgone.
  • A small agency has to charge for it, or cap intake so the question stops arising. There is no third option that's honest.
  • The legitimate forms: a higher retainer, a longer minimum term, or a right of first refusal rather than an outright bar.
  • The form to walk away from: free, unlimited, defined by a list, with no remedy and no disclosure obligation.

Where we land, since we're an agency writing this

We don't sell a category-exclusivity premium, because we'd rather not price something we can't police at scale. We take three new clients a month, which is a different mechanism with a similar effect at our size — the cap is arithmetic, not scarcity marketing, and it's the reason the guarantee is affordable at all.

What we will do before you sign is tell you which categories and cities we're already working in, and decline the engagement if we're already running an account that competes with yours on your actual query set. SEO runs from ₹75,000/mo, or ₹40,000/mo for smaller sites, ex-GST — there's no exclusivity line item on top, because turning work down is already priced into that number.

The conflict that actually costs you money

Most founders worry about strategy leaking to the competitor down the road. That's the smaller risk. Strategy in this industry is mostly visible from outside and gets copied within a quarter whether or not you share an agency.

Two mechanical conflicts do the real damage, and neither shows up in the exclusivity conversation.

An agency's link building is, in practice, a relationship list — publishers, editors, contributors and placement partners built up over years. Serve two competitors from that list and the same thirty to sixty domains end up linking to both sites, with similar anchor text, inside the same few months.

Google's spam policies define link spam as links created primarily to manipulate rankings, and a footprint that identical is exactly the pattern that gets read that way. The cost lands on both clients, and neither of them chose it.

Shared content templates

The second one is quieter and more common. Same brief format, same H2 skeleton, same FAQ block, same schema, same internal-link shape — because it's the same team running the same process. Two sites in one SERP that are visibly the same page wearing different logos.

Google's own guidance asks whether content adds substantial value rather than rewriting what already exists, and its scaled-content language targets pages made primarily to rank. You don't need a penalty for this to hurt; you just need to be the second of two interchangeable results.

Shared visibility into both accounts

The third is unavoidable rather than sinister. One team holding Search Console and Ads access on you and your rival sees both query sets, both conversion rates and both budgets. Nothing improper has to happen for that to be worth knowing about before you sign.

Verifying an exclusivity claim from outside, in about an hour

You don't have to take the answer on trust, and you shouldn't. Five of these six checks need nothing but a browser.

  1. Read their own site properly. Client logo wall, case studies, "industries we serve", team LinkedIn posts. Write down every name in your category and every name one step adjacent to it.
  2. Check footer credits and page source on your top ten organic competitors. "Website by —" in the footer, a builder signature in the HTML, or a shared analytics container ID gives the agency away more reliably than any reference call.
  3. Run a referring-domain intersection. Pull backlink profiles for your three closest competitors and look for domains linking to two or more of them within the same few months. That set is somebody's link inventory. It identifies the agency without anybody telling you.
  4. Look at who manages the profiles. Business Profile and Merchant Center management often shows up in support threads, review responses and old job posts.
  5. Ask the arithmetic question. "How many live accounts do you run, and how many delivery staff?" Then divide. Client load per specialist tells you whether a category bar is even possible.
  6. Ask the disqualifying question. "Which of your current clients would you have to turn down to sign us?" You are listening for a name. A philosophy is a no.

The clause worth writing, if you want one that binds

If exclusivity genuinely matters to you — and in a two-player category it might — five components turn a sentiment into a term. All five, or don't bother.

  • A definition by query set and geography, attached as a dated annexure and refreshed quarterly by whichever side does the reporting.
  • A disclosure obligation. The agency notifies you in writing within seven days of taking on any client matching that definition. Most disputes here are about being told late, not about the conflict itself.
  • A remedy you'd actually use. Immediate termination without notice fee, plus a refund of the current month. Damages clauses at this contract size are theatre; an exit right is not.
  • A term matching the engagement, not the initial quarter.
  • Entity scope. "The Agency, its parent, subsidiaries, and any entity under common control." Sister companies are the oldest workaround in the business.
  • One honest caveat: we're an agency, not your lawyers, and a bar that locks a supplier out of an entire category for years is the kind of restraint that gets argued about. Keep it narrow, keep it dated, keep it inside the term.

Sources

  1. Spam policies for Google web searchGoogle Search Central · 2026-05-15
  2. Creating helpful, reliable, people-first contentGoogle Search Central · 2025-12-10
  3. Managing owners, users, and permissionsGoogle Search Console Help

Every source above was checked on 13 August 2026.

Related questions.

Is it normal for an SEO agency to work with my competitors?

Yes, and it's often why they're good at your category. What isn't normal is failing to disclose it. Ask directly which clients in your space they run, get the answer in writing before signing, and add a clause requiring them to tell you within seven days if that changes.

What is category exclusivity in a marketing contract?

An undertaking that the agency won't serve competing clients for the term. It's meaningful only when "competing" is defined by query overlap and geography rather than a list of names, and only when breach carries a remedy — normally your right to terminate immediately without paying notice.

How do I know if my agency already works with a competitor?

Check footer credits and page source on your top ten organic competitors, look for shared analytics container IDs, and run a referring-domain intersection across those competitors' backlink profiles. Domains linking to two or more of them in the same window are usually one agency's inventory.

Should I pay extra for exclusivity?

Only if the category is small enough that it genuinely costs the agency slots, and only if the clause is defined by queries and carries an exit right. A free, unlimited, list-based promise is worth nothing — you'd be paying nothing for nothing, which at least prices correctly.

Does an NDA stop an agency working with a competitor?

No. An NDA restricts what they may disclose about you; it says nothing about who else they may sell to. They're two separate clauses and agencies rarely correct the confusion, because the NDA is easy to sign and the exclusivity clause isn't.

Can one agency serving two competitors get us both penalised?

It raises the risk. If the same set of domains links to both sites with similar anchors in the same window, that pattern reads as a link scheme rather than as two independent campaigns. Ask where links come from and whether any placement partner is shared across their client base.

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