VendorStacks vs HG Insights
Procurement model, mostly. They are a sales-led enterprise platform; we are a documented endpoint you can call ten minutes after signing up for $10.
Side by side
| VendorStacks | HG Insights | |
|---|---|---|
| What it is | A vendor-stack and subprocessor-disclosure API: give it a domain and it returns the vendors that company publicly discloses; give it a vendor and it returns the companies that disclose it. | Enterprise revenue-intelligence platform combining technographics, IT spend, contract intelligence and intent data. |
| Data source | Parses what companies publish about themselves — subprocessor lists, DPAs and vendor disclosures — and returns the quoted source row behind every match. | Mining of large volumes of unstructured documents — public records, web signals, job postings and resumes — combined with human verification.source |
| Pricing | 1 credit per lookup, flat. Packs at $10 / $50 / $250. 25 free credits on signup, 5 free live scans a day, no annual contract and no sales call. | Not published. Sales-led: the site routes to a demo request for pricing, and no free tier is published.
|
| API access | Public REST API, self-serve key at signup, plus bulk endpoints and completion webhooks. | A documented data API exists with self-serve key management, but access presupposes an existing customer relationship — there is no public signup or price.source |
When HG Insights is the better choice
IT spend estimates and contract intelligence at enterprise scale, with human verification in the loop. For a large sales org with a budget and a procurement question, that depth is real and we do not offer it.
When VendorStacks is
When the vendor you care about is behind the product rather than in front of it, and when you need the evidence rather than a confidence score. Every match we return carries the sentence the company published, so it can be checked rather than trusted. And when you want to try it without a call: 25 free credits at signup, $10 for 1,100 lookups after that.
What HG Insights claims about coverage
- Claims 13.2M+ companies across 236 countries and 20k+ products.source
Reported as HG Insights's own published claim. We have not independently audited it.
curl "https://api.vendorstacks.com/v1/check?url=stripe.com" \ -H "Authorization: Bearer vr_live_…"
Facts about HG Insights are quoted from their own public pages, linked above, and were last checked on 2026-08-09. Nothing here is estimated: where HG Insights does not publish something, this page says so. If a detail is out of date, tell us and we will correct it.