Riot Ventures key facts
- Riot Ventures is a venture capital firm based in Los Angeles, California with 24 tracked portfolio companies.
- Notable positions include Shield AI, Valar Atomics, Oxide Computer.
- PrivateMarketView records 4 deal participations by Riot Ventures.
- Riot Ventures’s most recent recorded investment was in Aug 2026, one of 15 in the last 12 months and 23 over two years.
- Riot Ventures has 2 funds on record.
- The team roster lists 7 people.
About Riot Ventures
Founded in 2017, Riot Ventures is a venture capital firm based in Los Angeles, California. The firm seeks to invest in technology companies operating in the defense, manufacturing, energy, and industrial automation sectors. This firm is a Registered Investment Adviser (RIA).
Investment activity
Riot Ventures joined 2 recorded rounds in the last two years (1 in the last 12 months), up from 1 in the two years before. By year: 1 in 2026, 1 in 2025 and 1 in 2023. Riot Ventures is recorded as lead on 1 of them. 1 round landed in the last 90 days. Most recently: Valar Atomics (Series B, Aug 2026) and Valar Atomics (seed round, Feb 2025).
Riot Ventures portfolio at a glance
24 portfolio companies are on record for Riot Ventures, including Shield AI, Valar Atomics and Oxide Computer.
18 of the 24 carry a recorded valuation and 2 have recorded secondary-market trades, the names a secondary buyer or seller can price.
Riot Ventures funds
2 funds are on record for Riot Ventures. The most recent is Riot Ventures Select Fund I (2026 vintage).
Riot Ventures team
7 people are on record at Riot Ventures: 2 general partners, 2 principals, 1 partner and 2 others. Senior names include Stephen H. Marcus (Co-Founder), William Coffield (Founder) and Collier Bern (Head). 7 of them have a verified direct contact on file.
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Riot Ventures at the SEC
Form ADV · 2026-04 · CRD 288647- Regulatory AUM
- —
- Private fund assets
- $948.3M
- Private funds
- 28 · 28 venture
- Staff
- 9
- Registered office
- VENICE, CA
- SEC status
- Approved
Source: SEC Investment Adviser Public Disclosure, Form ADV (registered as RIOT VENTURES MANAGEMENT, LLC).
- ·The top 10 names in the book — of 24 recorded positions
- ·The 10 latest deals — of 4 rounds
- ·Watchlist + alerts for Riot Ventures's activity
Portfolio
24 companies · priced for members| Company | Industry | Valuation | First invested | Role |
|---|---|---|---|---|
| Shield AI | Aerospace and Defense | ▮ | ▮ | ▮ |
| Valar Atomics | — | ▮ | ▮ | ▮ |
| Oxide Computer | Computers, Parts and Peripherals | ▮ | ▮ | ▮ |
+ 21 more companies · all 24, priced and dated or a free account shows the top 10 names — no card Membership and data by Private Market View | ||||
Riot Ventures recent deals
4 recordedMembership and data by Private Market View
Funds
2 recorded- GoAhead Ventures II (GoAhead Ventures)—
- Riot Ventures Select Fund I2026$131
$131 raised across the 1 fund that report a size
Partners, principals, and the people who answer a pitch. Pro members reveal contacts with credits.
Frequently asked about Riot Ventures
- What companies does Riot Ventures invest in?
- Riot Ventures has 24 recorded portfolio companies, including Shield AI, Valar Atomics, Oxide Computer.
- What is Riot Ventures's AUM?
- Riot Ventures manages approximately $625.0M in assets.
- Is Riot Ventures actively investing?
- Riot Ventures's most recent recorded investment was in Aug 2026, with 15 investments in the last 12 months.