United States · 
What does Series X Capital invest in?
Series X Capital invests most often at Growth (100% of the rounds on record), in sectors such as Venture Capital & Private Equity.
Series X Capital highlights
- 01
1 cheques in the last 12 months
- 02
Mostly Growth: 100% of its rounds
- 03
Led 1 rounds
What they do
A new venture capital fund.From their own website
- Type
- VC firm
- Cheque size
- Not stated
- Sectors
- Venture Capital & Private Equity
- Based in
- San Francisco, United States
- Cold pitches
- Not stated
The record
Every round we can evidence, newest first1 appearances
- 2026
1 round
- Mar
An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.
The team
Named by the firm itself, on a filing, its Form ADV or its company registration1 named
GYGideon YuManaging DirectoriFiling they signed
We also hold 1 person at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.
What the register says
From the firm's own filings with the SEC, which it must file accurately by law
$193Mgross assets of its fundsOct 2026
Exemptreporting adviserventure or small private funds
- Legal name
- Series X Capital Management LLC
- SEC number
- CRD 335150
What they claim to have backed
From their own portfolio page (on their website)
2 of 5 we have independently watched raise
Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded.