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At a glance
Riot Ventures appears in 7 funding rounds tracked by ValueAddVC since 2025, leading 1. Its most frequent sectors in these rounds are Defense & Space and Energy & Climate, and its most recent tracked deal was Oxide Computer's $445M Series D round (Oct 9, 2026). It co-invests most often with Atreides Management, Eclipse Ventures and Snowpoint Ventures. ValueAddVC also tracks 4 funds managed by Riot Ventures.
Strategy
Recent changes
- Oct 9, 2026Oct 9, 2026Invested in Oxide Computer (Series D, $445M) PR Newswire
- Oct 7, 2026Oct 7, 2026Invested in Parallel Systems (Series C, $100M) TechCrunch
- Aug 3, 2026Aug 3, 2026Follow-on: Invested in Valar Atomics ($1B) TechCrunch
- Apr 28, 2026Apr 28, 2026Follow-on: Invested in True Anomaly (Series D, $650M) Tech Funding News
- Mar 26, 2026Mar 26, 2026Invested in Shield AI (Series G, $1.5B) Bloomberg
Earlier changes (6)
- Apr 30, 2025Apr 30, 2025Invested in True Anomaly (Series C, $260M) PR Newswire
- Feb 20, 2025Feb 20, 2025Invested in Valar Atomics (Seed, $19M) TechCrunch
- Nov 1, 2024Nov 1, 2024New fund: Riot Ventures Venture Fund III (target $160M) SEC EDGAR Form D
- Mar 28, 2022Mar 28, 2022New fund: Riot Ventures Venture Fund II ($86.428571M) SEC EDGAR Form D
- Jan 1, 2021Jan 1, 2021New fund: Riot Ventures Fund II ($90M) Value Add VC funds tracker
- Apr 11, 2017Apr 11, 2017New fund: Riot Ventures Venture Fund I (target $25M) SEC EDGAR Form D
Funds
4| Fund | Vintage | Size | Strategy | Source |
|---|---|---|---|---|
| Riot Ventures Venture Fund III | 2024 | target $160M | Venture | As of Oct 31, 2025SEC EDGAR Form D |
| Riot Ventures Fund II | 2021 | $90M | Flagship | As of 2021Value Add VC funds tracker |
| Riot Ventures Venture Fund II | 2020 | $86.428571M | Venture | As of Mar 28, 2022SEC EDGAR Form D |
| Riot Ventures Venture Fund I | 2017 | target $25M | Venture | As of Apr 11, 2017SEC EDGAR Form D |
Portfolio
6 totalRecent Investment Activity
7Track record: led 1 and participated in 6 of 7 tracked venture rounds · 5 in the last 12 months · led 1 Seed
| Date | Company | Event | Role | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|---|---|
| Oct 9, 2026 | Oxide Computer | Series D | Participated | $445M | — | Eclipse VenturesLeadunverifiedRiot VenturesunverifiedJane StreetunverifiedAtreides ManagementunverifiedAMD VenturesunverifiedUS Innovative Technology Fund | PR Newswire |
| Oct 7, 2026 | Parallel Systems | Series C | Participated | $100M | — | Congruent VenturesunverifiedRiot VenturesunverifiedCollaborative FundunverifiedAVPHillspireCobalt CapitalAnthos Capital+1 more | TechCrunch |
| Aug 3, 2026 | Valar Atomics | funding round | Participated | $1B | $6B | Sequoia CapitalLeadAtreides ManagementunverifiedConvictionunverifiedHOF CapitalunverifiedPoint72unverifiedRiot VenturesunverifiedSnowpoint VenturesunverifiedValor Equity PartnersunverifiedApandion CapitalDream Ventures | Pulse story |
| Apr 28, 2026 | True Anomaly | Series D | Participated | $650M | — | Eclipse VenturesunverifiedRiot VenturesunverifiedParadigmunverifiedAtreides ManagementunverifiedG Squaredunverified | Tech Funding News |
| Mar 26, 2026 | Shield AI | Series G | Participated | $1.5B | $12.7B | Advent InternationalLeadunverifiedJPMorganChase Strategic Investment GroupunverifiedSnowpoint VenturesunverifiedRiot VenturesunverifiedDisruptiveunverified | Bloomberg |
| Apr 30, 2025 | True Anomaly | Series C | Participated | $260M | — | AccelunverifiedMeritech CapitalunverifiedEclipse VenturesunverifiedRiot VenturesunverifiedMenlo VenturesunverifiedACME CapitalSpace VCChampion Hill VenturesNarya | PR Newswire |
| Feb 20, 2025 | Valar Atomics | Seed | Led | $19M | — | Riot VenturesLeadunverifiedInitialized CapitalunverifiedAlleyCorpunverifiedDay One VenturesunverifiedSteel Atlas | TechCrunch |
Sector / Stage Activity
Co-Investors
12Similar Firms
overlapping sector, stage or regionValue Add Research
- Market & Trends · Oct 8, 2026Parallel Systems Funding 2026: $100M Series C
- Market & Trends · Sep 5, 2026Valar Atomics Valuation: $6B After Sequoia's $1B Series B
- VC & Investing · Aug 4, 2026$1B at $6B — Valar Atomics Nuclear for AI
- VC & Investing · Jul 15, 2026$12.7B Shield AI IPO — Defense Tech Listing (2026)
Latest Pulse
- Oct 9, 2026Oxide Computer Raises $445M To Scale Its Own CloudOxide Computer raised a $445 million Series D led by Eclipse, with new backing from AMD Ventures and Atreides Management, to expand manufacturing of its on-premises cloud hardware.→
- Aug 31, 2026Defense Tech's $35.6 Billion Year, By the CompsAnduril at $61 billion, Castelion at $13 billion, True Anomaly at $600 million raised -- the named rounds behind defense tech's $35.6 billion year explain what's actually driving the category better than the aggregate number does.→
- Aug 4, 2026Valar Atomics Triples to $6B for Factory NuclearValar Atomics raised a $1B Series B led by Sequoia at a $6B valuation, tripling its mark since April, months after using a fission reaction to power an Nvidia chip for the first time.→
- Aug 3, 2026Valar Atomics Raises $1B at $6B for Factory NuclearSequoia led a $1B Series B for Valar Atomics at a $6B post-money valuation, tripling the mark it carried in April, weeks after the startup used a fission reaction to power an Nvidia AI chip.→
- Aug 3, 2026Sequoia Leads $1B Round for Nuclear Startup ValarValar Atomics closed a $1B Series B led by Sequoia at a $6B valuation, tripling its April mark, weeks after its microreactor became the first in US history to power an Nvidia AI chip.→
Riot Ventures FAQ
How large are Riot Ventures' funds?
Riot Ventures funds Value Add tracks include Riot Ventures Fund II ($90M, 2021); Riot Ventures Venture Fund II ($86.428571M, 2020), out of 4 Riot Ventures funds tracked in total.
What companies has Riot Ventures invested in?
Riot Ventures' portfolio includes Shield AI, Oxide Computer, Parallel Systems, Valar Atomics, True Anomaly, Parallel.
Who does Riot Ventures co-invest with most?
In the rounds Value Add tracks, Riot Ventures most often invests alongside Atreides Management (3 shared deals), Eclipse Ventures (2 shared deals), Paradigm (2 shared deals), Point72 Ventures (2 shared deals), Snowpoint Ventures (2 shared deals).
Sources & methodologyshow
- PR Newswireprimary source1 fact
- PR Newswireprimary source1 fact
- SEC EDGAR Form Dprimary source1 fact
- SEC EDGAR Form Dprimary source1 fact
- SEC EDGAR Form Dprimary source1 fact
- Bloombergmajor outlet1 fact
- TechCrunchmajor outlet1 fact
- TechCrunchmajor outlet1 fact
Figures are labelled Reported (a source states it), Estimated, Derived (computed from other facts) or Rumored (in talks / unconfirmed). Rumors never replace a confirmed figure. Each figure keeps its own as-of date; history is preserved rather than overwritten.