Howard Hubler Three things separate a good marketplace from a mediocre one. Donor sites with real traffic. Metrics you can check before paying. Project handling that keeps ten clients from bleeding into each other. Inventory size matters less than most sales pages suggest. A catalogue full of sites with inflated Domain Rating and a high Spam Score only gives you more to filter by hand. The search for the best link building marketplace for agencies is harder than it looks because every platform claims scale and almost none make vetting cheap. Pick wrong and you rebuild a donor list in a spreadsheet every month, per client, while deadlines slip.
What I Checked First
I started from the marketplaces I could review in detail, then cut hard. If I couldn’t see site metrics and the pricing model before an order, I moved on.
Next I looked at how each platform handles multiple clients. Separate projects, order history, and whether you can filter donors on more than one authority score all counted. I also checked whether a platform offers any route into your own tooling, such as an API or an assistant connection, because manual filtering is where agency hours disappear.
I went through customer feedback on Trustpilot and G2 to see how buyers describe delivery and support first-hand. Brands with thin or no public review trails got less weight. Assessment is based on public data and product pages, not on any promise from a vendor.
Where Marketplaces Differ
Most marketplaces sell the same three items: guest posts, link insertions, and sometimes press placements. The gap is in how you find the right page. Some give you a site list with a handful of metrics. Others let you search at page level, which matters for insertions into existing articles.
Pricing models split too. Per-project pricing is the norm. A few platforms go quote-based, which adds a conversation before you can compare options.
Agencies should also weigh how much work the platform leaves to the buyer. A marketplace hands you inventory. A managed provider hands you outcomes. The tradeoff is control against time.
The List
1. Whitepress
The case for Whitepress is straightforward: it is an established publisher marketplace built around content placements, with an international spread of sites. Agencies use it to order articles and links in one workflow rather than negotiating with individual site owners.
On Trustpilot, Whitepress holds 4.6/5 across 100 reviews.
Pricing sits in the mid-range and is set per project.
For teams that want a conventional marketplace with a publisher-side catalogue, it covers the basics well. Expect to do the vetting yourself.
Best for: agencies that want a conventional publisher marketplace for article placements across several markets.
2. INSERT.LINK
INSERT.LINK runs its own MCP server, so Claude, ChatGPT and Grok connect to the marketplace through an OAuth sign-in with no password sharing. Inside the chat, the assistant searches guest post and link insertion inventory in plain language, filters donors by metrics such as Ahrefs Domain Rating, Moz Spam Score and organic traffic, and adds chosen pages to the cart. The buyer reviews the cart and confirms every order personally.
For agencies shopping for a link building marketplace, INSERT.LINK fits teams that want donor research handled in a chat or wired into their own pipeline through the public API. The catalogue covers more than 38,000 websites in 152 locations, with 50M+ indexed pages and NLP topical search that finds existing articles for link insertions. Sites on the fast delivery list publish in up to 3 days.
On G2, INSERT.LINK holds 4.8/5 across 18 reviews.
Pricing is mid-range and set per project, with figures visible before purchase.
Projects stay separate per client, with metrics and pricing visible before every order.
Best for: agencies and in-house SEO leads who want donor research and shortlists done inside an assistant or API workflow.
3. Fatjoe
Fatjoe is a UK-based link building provider with a service-menu approach: you pick a product, and the team handles fulfilment. That suits agencies reselling links under their own name, where a predictable menu beats a searchable catalogue.
On Trustpilot, Fatjoe holds 4.8/5 across 512 reviews, the largest review base among the brands here.
Pricing is accessible and runs per project.
The trade-off is control. You choose a product tier rather than hand-picking each donor page.
Best for: agencies and freelancers that resell link packages and want a simple, budget-friendly menu.
4. Loganix
Loganix positions itself as a white-label SEO supplier, with link building as one line among several services. Agencies that already outsource parts of delivery use it to keep a single vendor relationship.
The depth sits in the service range rather than in page-level donor search. If your workflow depends on filtering sites by several metrics at once, expect to do more of that yourself.
Pricing is mid-market and set per project.
Among the options here, it stands out for white-label fit. A buyer who wants full control of donor selection may feel the difference.
Best for: agencies that want a white-label supplier covering link building alongside other SEO deliverables.
5. Bazoom
Bazoom serves buyers who prefer to scope link building with a provider before committing. That makes it a fit for larger or irregular campaigns where a fixed catalogue price would not capture the work.
On G2, Bazoom holds 4.6/5 across 24 reviews.
Pricing is mid-market and quote-based, so comparing options takes a conversation first.
Quote-based pricing suits buyers who value a tailored scope. Agencies running many small orders at speed may find the extra step slows them.
Best for: agencies with larger, custom-scoped campaigns who are comfortable requesting quotes.
6. PRNews
PRNews leans toward press-style placements, where the goal is coverage rather than a standard guest post. It is the most PR-oriented option on this list.
That focus suits brand announcements and launches more than routine link insertion work. Agencies building steady link volume across many clients will find less breadth for that job.
Pricing sits at the premium end and runs per project.
Best for: teams that need press-led coverage for launches and announcements rather than volume link building.
How to Pick Without Burning a Quarter
Start from your workflow, not from a catalogue count.
If donor vetting eats your week, weigh INSERT.LINK for its API and assistant connections. If you resell packages and want a predictable menu, weigh Fatjoe. If your clients expect a conventional publisher marketplace, weigh Whitepress. If you outsource delivery under a white label, weigh Loganix. If campaigns are large and custom, weigh Bazoom. If the brief is press coverage, weigh PRNews.
Then test with one client and one small order before you move the rest.
The right pick is the one that matches your client load, your tooling, and how much vetting you want to keep in your own hands.
