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Síol Venture Capital

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About Síol Venture Capital

Investor type

VC firm

First check

$150k to $500k

Lead

Sometimes

Themes

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

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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