How to find the right SEO company without guessing

Choosing an SEO company is a purchase made under an information disadvantage: the buyer usually cannot evaluate the technique, the results arrive months after the invoice, and the loudest firms are often the ones spending most on outbound rather than on delivery. The way out is not to become an expert; it is to buy on evidence a non-expert can check. Published prices, named clients who will take a call, a method described in plain language, and contract terms that keep your accounts yours. This page is the checklist we apply to every agency in the index, in the order that saves the most wasted calls.

median disclosed retainer, per month (USD)
$2,000
agencies with a verified published price
21
verified agencies in the index
134

Figures on this page come from the 134-agency verified catalog: each one was fetched from the agency's own published page and matched verbatim, with the source and retrieval date stored beside it.

Agencies with a verified published price

Agency Disclosed starting price Evidenced specialties HQ Source Checked
Prosperity Media 3 verified facts AUD 2,000/mo Content marketingSEO Surry Hills (Sydney), NSW, AU prosperitymedia.com.au August 2026
SimpleTiger 3 verified facts $5,000/mo SEO Sarasota, FL simpletiger.com August 2026
Yoghurt Digital 3 verified facts AUD 2,000/mo PPC & paid searchSEOSocial media marketing Surry Hills (Sydney), NSW, AU yoghurtdigital.com.au August 2026
Boulder SEO Marketing 2 verified facts $2,000/mo SEO Boulder, CO boulderseomarketing.com August 2026
EZMarketing 2 verified facts $1,500/mo PPC & paid searchSEO Lancaster, PA ezmarketing.com August 2026
Firebelly Marketing 2 verified facts $3,000/mo Social media marketing Indianapolis, IN firebellymarketing.com August 2026
Grounds for Promotion 2 verified facts $5,000/mo PPC & paid searchSEO Boulder, CO groundsforpromotion.com August 2026
Hook Agency 2 verified facts $2,800/mo PPC & paid searchSEO Minneapolis, MN hookagency.com August 2026
Kalungi 2 verified facts $50,000/mo Content marketing Kirkland, WA kalungi.com August 2026
The SEO Room 2 verified facts AUD 1,500/mo Content marketingSEO Canning Vale (Perth), WA, AU seoroom.com.au August 2026
Thrive Internet Marketing Agency 2 verified facts $500/mo SEO Arlington, TX thriveagency.com August 2026
Ciphers Digital Marketing 1 verified fact $2,500/mo SEO Gilbert, AZ ciphersdigital.com August 2026

The four steps that decide the outcome

  1. Write the outcome before the brief. One sentence: what should be different in twelve months, for which service, for which kind of customer. Agencies answer the brief they are given, so a vague brief produces a proposal designed to be impossible to fail rather than one designed to be measured.
  2. Screen on what is already public. Shortlist from published prices, named clients, described methods and real reports. Screening on public evidence takes an hour and removes most of the field before anyone has sold you anything, which is the only stage where you still hold the advantage.
  3. Interrogate the method. Ask how links are sourced, who writes the content, and what changes in the first ninety days. Google's guidance on hiring an SEO tells buyers to be skeptical of anyone unwilling to explain their methods, of unsolicited pitches, and of claimed special relationships with Google.
  4. Call two references and read the contract. Ask a reference what they paid, what arrived, and what went wrong. Then check term length, notice, reporting cadence, and ownership of the domain, content, analytics and ad accounts. Ownership disputes surface at exit, when your leverage is gone.

What Google's own hiring guidance tells you to ask

Google publishes guidance for this exact purchase, and it is more useful than most agency comparison content. It suggests asking for examples of previous work and success stories, asking what results to expect and in what timeframe, and understanding that some changes take effect in hours while others take several months. It advises granting only the access needed, and it warns against unsolicited pitches promising quick results.

Its most valuable line is the plainest: no one can guarantee a #1 ranking on Google. That single sentence disqualifies a category of pitch outright. A competent provider forecasts ranges, explains the assumptions behind them, and reports against the forecast honestly when a quarter disappoints.

The method questions that separate the field

Two questions do most of the work. First, how are links acquired? Google's spam policies name buying or selling links for ranking purposes as a violation, and state that sites breaching the policies may rank lower or not appear at all. An answer built on digital PR, genuine partnerships and content people cite is a different risk profile from one built on a private network.

Second, how is content produced and reviewed? Scaled content abuse, meaning pages generated primarily to manipulate rankings rather than to help people, is a named violation too. Ask who writes, who reviews for accuracy, and how the agency decides a page is worth publishing. Get both answers in writing, because the risk lands on your domain rather than on the agency's.

Price, and what it is fair to expect for it

Most agencies do not publish prices, which is not by itself a warning sign, since scoped work is genuinely variable. It does mean comparison starts with sales calls, so use the ones that do publish to calibrate before you spend that time. Compare deliverables at each price: hours, named staff, content volume, technical work and reporting.

Beware the two ends. A price far below the field usually buys templated output at volume, which is the shape most likely to run into the spam policies. A price far above it may be fine, but should come with senior time, editorial capacity and reporting you can audit. Ask what would have to be true for the engagement to be judged a failure, and whether the contract lets you act on that answer.

Questions people actually ask

How can a non-expert judge SEO quality?
By judging the things you can check: published prices, named clients who will talk, a method explained without jargon, real sample reports, and contract terms that keep your accounts yours. Those four correlate with quality far better than rankings screenshots do.
Is a guarantee ever legitimate?
A guarantee of work delivered, of reporting cadence, or of a refund against a missed deliverable can be legitimate. A guarantee of a ranking position is not. Google states plainly that no one can guarantee a #1 ranking, so a promise of one contradicts the platform being sold.
How long should the first contract run?
Long enough for the work to show, short enough to leave. A common shape is an initial three to six month commitment covering audit and foundations, then rolling monthly with reasonable notice. Judge at ninety days on leading indicators such as pages shipped, fixes made and coverage gained.
What access should an agency get?
The minimum for the task, granted from accounts you own. Read-only Search Console access suits an audit; publishing access is a separate decision. Never let an agency register your domain, own your Google Business Profile or hold your ad account in its own billing entity.

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The median advertised marketing retainer starting price per month in the US agency market was $2,000 in August 2026, across 21 verified agency facts recorded in FindAgency HQ Pricing Transparency Index.

Cite as: "FindAgency HQ Pricing Transparency Index", updated 2026-08-18, https://findagencyhq.com/how-to-find-the-right-seo-company/.

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median advertised marketing retainer starting price per month · the US agency market · August 2026

$2,000

Middle 50%$500 – $50,000
verified agency facts21

Source: FindAgency HQ Pricing Transparency Index

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