Funding round
OpenEvidence Series B
OpenEvidence, which works in medical information search engine development in Miami, raised $210M in a Series B round announced on 17 Jul 2025, led by GV and Kleiner Perkins, at a $3.50B post-money valuation. 6 firms took part. It is OpenEvidence's second venture round on record; the one before was a Series A in Feb 2025.
$210M
Amount raised
$3.50B
Post-money valuation
$3.29B pre-money
6
Investors
2 leads
3.5x
Step-up from the Series A
$1.00B in Feb 2025
6.0%
Stake sold
new money over the post-money
Valuation
What this round says about the price
This round priced OpenEvidence at $3.50B after the new money, 3.5 times the $1.00B of its Series A (Feb 2025). The $210M bought investors about 6.0% of the company. It came 5 months after OpenEvidence's Series A. It is 29% of the $735M OpenEvidence has raised in the venture rounds on record. OpenEvidence raised again 3 months later: a Series C round of $200M in Oct 2025, at $6.00B post-money.
OpenEvidence's funding rounds
OpenEvidence has 4 venture rounds on record. This one is highlighted.
Investors
Who put money in
GV and Kleiner Perkins led the round with 4 other firms.
Lead investors
- GV backs 428 venture-backed companies new investor
- Kleiner Perkins backs 285 venture-backed companies new investor
Also in the round
- Sequoia Capital backs 589 venture-backed companies new investor
- Coatue backs 229 venture-backed companies new investor
- backs 44 venture-backed companies new investor
- Thrive Capital backs 130 venture-backed companies new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to product development, scaling operations and working capital.
- Product development
- Scaling operations
- Working capital
Comparable rounds
How it compares
666 Series B rounds in Tech Companies within a year either side disclosed an amount; the median was $34M, and this round was 6.2 times the median. The closest in time, other companies' Series B rounds in Tech Companies:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Tech Companies | 1 Jul 2025 | $5.30B | $50.00B | Sequoia Capital |
| Tech Companies | 1 Jul 2025 | $160M | not disclosed | Insight Partners |
| Tech Companies | 22 Jul 2025 | $70M | not disclosed | Lightrock and Partech |
| Tech Companies | 9 Jul 2025 | $55M | not disclosed | PeakSpan Capital |
| Tech Companies | 28 Jul 2025 | $50M | not disclosed | O.G. Venture Partners |
| Tech Companies | 24 Jul 2025 | $40M | $325M | Insight Partners |
| Tech Companies | 23 Jul 2025 | $38M | not disclosed | QED Investors |
| Tech Companies | 28 Jul 2025 | $37M | not disclosed | Theory Ventures |
Sources
Where this comes from
Reported by 5 sources.
Questions
Frequently asked
How much did OpenEvidence raise in its Series B round?
OpenEvidence raised $210M in its Series B round, announced in Jul 2025.
Who led OpenEvidence's Series B round?
GV and Kleiner Perkins led it, with Sequoia Capital, Coatue, Conviction and Thrive Capital.
What was OpenEvidence's valuation at the Series B round?
$3.50B post-money ($3.29B pre-money).
How does it compare with other Series B rounds in Tech Companies?
666 Series B rounds in Tech Companies within a year either side disclosed an amount; the median was $34M, and this round was 6.2 times the median.
Did OpenEvidence raise again after this round?
Yes: a Series C round in Oct 2025 of $200M at $6.00B post-money.