Link building companies, compared on evidence

Link building companies sell the one part of search work that depends on other people saying yes. That dependency is what makes the category hard to buy well: the deliverable is easy to count and very hard to judge, so price per link has become the default comparison even though it says almost nothing about quality or risk. This index lists 134 agencies on what they publish about themselves, so the shortlist starts from evidence rather than a rate card.

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

How to compare link building providers

  1. Ask where the links come from, not how many. A provider doing real outreach can describe the kinds of publications, the pitch that earns a link and why an editor accepts it. A provider that answers only with volume and turnaround is describing an inventory it did not build.
  2. Establish what is paid and what is earned. Search engines publish policies against buying or selling links for ranking purposes, and paid placements are meant to be marked so they pass no ranking value. Get a written statement of what money changes hands on your behalf.
  3. Look at the content behind the link. Most links come attached to something written. Ask to read three recent placements in full. If the article would embarrass you on your own site, it is not doing your brand any favours on someone else's.
  4. Agree relevance before volume. A handful of links from publications your buyers actually read is a different asset from a monthly quota spread across unrelated sites. Ask each candidate to name the publications it expects to reach in your sector.
  5. Price against published floors. The minority of agencies that print their pricing set the visible reference points for the market. Ask every finalist to position its quote against those published figures and to say what the lowest tier really includes.

The risk sits with you, not the vendor

Search engines are explicit that links created primarily to manipulate rankings fall under their spam policies, and that sites in breach can rank lower or drop out of results altogether. The important asymmetry is that the penalty lands on your domain, while the provider keeps the fee and moves on to the next client.

That is the whole reason to interrogate sourcing before signing. A programme that would survive a search engine tightening its enforcement looks different from one that would not, and the difference is visible in the answers a candidate gives about method long before it shows up in a report.

What a defensible programme looks like

It starts from something worth linking to. Original research, a genuinely useful tool, data nobody else has published, or expertise a journalist needs on deadline. Agencies that build this into the scope are slower and more expensive per placement, and they are buying you an asset rather than renting you a signal.

It also reports honestly on failure. Outreach has a low hit rate by nature, so a provider that reports pitches sent, replies received and placements won is telling you the truth about the work. A provider that only ever hits its number every month is either extraordinarily good or not doing outreach at all.

Ask, finally, what happens when a link is removed. Publications change owners, articles get pruned, and a real agency has a view on that. One that has never seen it happen has not been doing this long.

Verifying a candidate before you call

Agencies are listed in this index only on what can be verified from their own published pages: address, named team, printed prices where they exist, and case detail specific enough to check. Nothing here is paid placement.

Add one check of your own. Look at the links the agency has earned for itself. It is the single claim in this category that cannot be written by a copywriter, and it takes minutes.

Treat any guaranteed ranking outcome as disqualifying. Search engines state that no one can guarantee a top position, so a guarantee attached to a link package is a promise about something outside the seller's control.

Questions people actually ask

Is buying links against search engine rules?
Buying or selling links for ranking purposes is named in search engine spam policies, and sites in breach may rank lower or not appear at all. Paid placements are supposed to be marked so they pass no ranking value, which removes the benefit being sold.
How many links do I need?
It is the wrong question to lead with. A small number of links from publications your buyers read will usually outperform a monthly quota from unrelated sites, and relevance is what a provider should be arguing for in its proposal.
Why do prices per link vary so much?
Because the underlying work varies from real outreach and original content to placement on an existing network. Ask what the price buys in labour, then compare like with like against the agencies that print their rates.
How do I check a link building company before hiring it?
Read three of its recent placements in full, ask it to describe its sourcing and its failure rate, look at the coverage it has earned for itself, and confirm in writing what money changes hands on your behalf.

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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/link-building-companies/.

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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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