What companies does TRIATOMIC CAPITAL invest in?

TRIATOMIC CAPITAL has 15 recorded portfolio companies, including d-Matrix, ArsenalBio, Axiom (Palo Alto).

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TRIATOMIC CAPITAL key facts

TRIATOMIC CAPITAL is a private equity firm based in PALO ALTO, CA with 15 tracked portfolio companies.
Notable positions include d-Matrix, ArsenalBio, Axiom (Palo Alto).
PrivateMarketView records 3 deal participations by TRIATOMIC CAPITAL.

Investment activity

TRIATOMIC CAPITAL joined 3 recorded rounds in the last two years. By year: 2 in 2026 and 1 in 2025. TRIATOMIC CAPITAL is recorded as lead on 1 of them. 2 rounds landed in the last 90 days. Most recently: Gimlet Labs (Series B, Sep 2026) and iPronics (Series B, Sep 2026).

TRIATOMIC CAPITAL portfolio at a glance

15 portfolio companies are on record for TRIATOMIC CAPITAL, including d-Matrix, ArsenalBio and Axiom (Palo Alto).

14 of the 15 carry a recorded valuation.

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TRIATOMIC CAPITAL at the SEC

Form ADV · 2026-03 · CRD 312408

Regulatory AUM: —
Private fund assets: $346.3M
Private funds: 8 · 1 private equity, 1 hedge, 6 other
Staff: 9
Registered office: PALO ALTO, CA
SEC status: Approved

Reports custody of client assets.

Source: SEC Investment Adviser Public Disclosure, Form ADV (registered as TRIATOMIC MANAGEMENT LP).

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Portfolio

15 companies · priced for members

Company	Industry	Valuation	First invested	Role
d-Matrix	Semiconductors	▮	▮	▮
ArsenalBio	—	▮	▮	▮
Axiom (Palo Alto)	AI/ML	▮	▮	▮
+ 12 more companies · all 15, priced and dated or a free account shows the top 10 names — no card The whole book · Pro $99 a month Membership and data by Private Market View

TRIATOMIC CAPITAL recent deals

3 recorded

Sep 2026Gimlet LabsSeries B▮

Sep 2026iPronicsSeries B▮

Nov 2025d-MatrixSeries C▮

amounts and lead flags are a member featureUnlock all 3 deals

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Frequently asked about TRIATOMIC CAPITAL

What companies does TRIATOMIC CAPITAL invest in?: TRIATOMIC CAPITAL has 15 recorded portfolio companies, including d-Matrix, ArsenalBio, Axiom (Palo Alto).