What stage does Iolar Ventures invest at?

Iolar Ventures invests at the Pre-Seed, Seed, Series A stages.

What is Iolar Ventures's typical check size?

Iolar Ventures typically writes checks of $1M – $3M.

Where is Iolar Ventures located?

Iolar Ventures is headquartered in Los Altos Hills, US.

Iolar Ventures

Venture capital

Los Altos Hills · Pre-Seed–Series A · 2 people tracked

Also known as IOLAR VENTURES MANAGEMENT, LLC

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Investment thesis

Iolar Ventures champions a capital-efficient model of company building as an alternative to mainstream venture's high-burn, rapid-growth-at-all-costs approach. The firm deliberately keeps its funds small so it can stay focused and avoid pushing excess capital on founders, prioritizing clarity, simplicity, and alignment of interests between founders and investors. It encourages portfolio companies to remain lean to reach early profitability and control their own destiny. As a boutique investor with deep operating and venture experience, Iolar cultivates long-term, trusted partnerships with founders across multiple companies, aiming to deliver capital plus critical resources that create meaningful impact from start to exit.

Invests inCleantech Climate Tech Cybersecurity Energy Enterprise Software Sector AgnosticLos Altos HillsSilicon ValleyUnited States

Source: firm website, verified Aug 11, 2026.

Stage

Pre-Seed–Series A

Check

$1M – $3M

Los Altos Hills, California, US

Instruments

Equity

Founded

2022

Private fund assets

$20.6M

VC funds

Team · 2 people

from the firm's website

Patrick Sagisi· Managing Partner

Co-founder of Iolar Ventures with three decades of product development, operations, and venture experience, previously Head of Corporate Ventures at Acario Innovation/TokyoGas investing in climate and energy companies, and earlier at DBL Investors/DBL Partners. He holds dual MBA and MS-Engineering degrees from Stanford and a dual BS in EE/CS and Materials Science from UC Berkeley, and is a three-time Olympic swimmer.

p•••@iolar.vcreveal

Susan Mason· Managing Partner

Co-founder of Iolar Ventures with over three decades of operating, management, and venture capital experience, previously a co-founder of Aligned Partners and General Partner at ONSET Ventures, specializing in IT, communications, and security investing. She holds a BS in EE/CS from the University of Colorado and an MBA from UCLA, and is a founding board member and Chairman Emeritus of the Center for Venture Education (Kauffman Fellows Program).

s•••@iolar.vcreveal

Frequently asked questions

What stage does Iolar Ventures invest at?: Iolar Ventures invests at the Pre-Seed, Seed, Series A stages.
What is Iolar Ventures's typical check size?: Iolar Ventures typically writes checks of $1M – $3M.
What sectors does Iolar Ventures focus on?: Iolar Ventures focuses on Cleantech, Climate Tech, Cybersecurity, Energy, Enterprise Software, Sector Agnostic.
Where is Iolar Ventures located?: Iolar Ventures is headquartered in Los Altos Hills, US.

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