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Síol Venture Capital

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Reply Rate

88%

Responds in

5 days

About Síol Venture Capital

Investor type

VC firm

First check

$150k to $500k

Lead

Sometimes

Themes

renewable
gov tech
recurring
data science
environmental
agents
wellness
deep learning
machine learning
artificial intelligence
tech-enabled health
public policy
AI
computer vision
subscription
mental health energy
civictech
B2G
longevity
smart grids
environnement
waste
solar
healthier living
connected-health
greentech
smart grid
clean energy
e-health
SaaS
collaboration tools
health
smartgrids
smartgrid
software
wind
photovoltaic
circular economy
health-tech
connected health
LLM
cleantech
generative AI
genAI big datahealthtech
telehealth
healthcare
wellbeing
regulation
oil
grid
gas
ML
digital-health
environment
battery
govtech
productivity tools
civic tech
well-being
machine vision
ehealth
neural network
utilities
climate
renewables
biodiversity
batteries
+63
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Funding Stages

1. Idea or Patent2. Prototype3. Early Revenue

Countries of investment

Flag of USA USA

Who we are

We are founded at the intersection of venture capital and public policy, Síol invests in pre-seed startups building in heavily regulated industries. We back founders building ahead of regulatory change — where policy, markets, and technology collide, and where conviction matters most before consensus arrives.

Funding Requirements

We invest in heavily regulated industries, including: healthcare, energy, environmental/clean-tech, govtech and dual-use. We invest in both software and hard tech, including deep tech.

We invest pre-product and pre-revenue up to $1M in revenue. Our funding decisions focus heavily of the founder(s) and founding team. Solo-founders are ok, especially in this new age of AI. Pre-revenue startups require some other demonstration of traction.

Value add

Síol was built to marry political capital with actual capital for startups and founders that need that assistance. In addition we leverage our network to help connect founders with potential customers.

Frequently Asked Questions

Locations

10332 Main Street, Suite 298 Fairfax, VA 22030 HQ
Reply Rate

88%

Responds in

5 days

Síol Venture Capital Team

Michael O'Brien

Michael O'Brien

GP/MD

“I invest in markets shaped by policy and regulation. We believe the greatest opportunities emerge before regulatory clarity, when markets are still misunderstood and conviction matters most.”

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