Mayfield
Portfolio in United States: 2 funded startups tracked by Uback, 2 of them in a ranking.
Portfolio on Uback2startups, 1 country
In a ranking2ranked by AI-estimated valuation
On the Radar0eligible, not ranked
Latest deal trackedMay 2025Realta Fusion
Portfolio on Uback
Sorted by Uback rank, then Radar by last round| Company | Uback | Sector | Round backed | Valuation (AI) |
|---|---|---|---|---|
| SeekOut | #11 Recruiting | Business software › HR › Recruiting | Series C · USD 115M · Jan 2022 | Hundreds of M$ |
| Realta Fusion | #27 Fusion & advanced nuclear | Energy & climate › Generation › Fusion & advanced nuclear | Series A · USD 36M · May 2025 | Hundreds of M$ |
Only startups that meet Uback’s eligibility rules are shown. Amounts are round sizes, not the fund’s share. Rounds as reported by public sources.
By sector
Deals tracked per year
12022
02023
02024
12025
Co-investors
Future Ventures · Khosla Ventures · WARF · Tiger Global · Madrona · Founders Circle
Investors that joined the same rounds, as reported by public sources.
Sources. app.dealroom.co, finsmes.com, geekwire.com, as cited on each company’s profile.
Last updated: Oct 2026Report a missing dealReport an error
Uback is a content publisher. It provides no investment advice, receives no mandate and takes part in no transaction.