Qdrant vs Vespa: who uses which
Customers, public proof and the companies that use both.
On usedby, 60 companies use Qdrant and 14 use Vespa. 1 company uses both, including perplexity.Latest check Oct 7, 2026: 72 of 74 public lines checked. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side.
Who uses Qdrant, Vespa, or both
Every company with a public proof for at least one of the two tools.
59
use only Qdrant
1
company uses both
13
use only Vespa
59 companies use only Qdrant, 13 use only Vespa and 1 uses both, out of the 73 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 5, 2026.
Where it lands
Newest customers
No new customer since tracking started on October 7, 2026.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 perplexity |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Qdrant
VespaWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Questions about Qdrant and Vespa
Which is used more, Qdrant or Vespa?
Qdrant has more customers on usedby: 60 against 14 for Vespa.
Do companies use both Qdrant and Vespa?
Yes. 1 company uses both on usedby, including perplexity.
Who uses Qdrant?
60 companies on usedby, each with the public page that shows it. See who uses Qdrant.
Who uses Vespa?
14 companies on usedby, each with the public page that shows it. See who uses Vespa.
How does usedby count customers?
A company counts when a public page shows it: a vendor's customer page, a case study, a press release or a job post, most saved with a dated capture. Every line is a customer, at one of three proof levels: confirmed, observed or signal (a job post, the weakest). A company is named as using both tools when its lines on both are confirmed or observed.