What they do:
Economically and environmentally sustainable supersonic travel
Quick facts:
HQ: Denver, CO, United States
Top Deep Tech Startups in Denver
This list has 13 startups and was last updated on Oct 15, 2026. 4 of them are hiring right now. Largest teams: Boom, Accept.inc (formerly BoardRE), and H3X Technologies. Latest round: Vartega raised $1.5M (Jan 8, 2026).
13 startups
Quindar
Hiring
What they do:
Datadog for Space
Quick facts:
HQ: Denver, CO, United States
Albedo
Hiring
What they do:
Full-stack VLEO satellite missions
Quick facts:
HQ: Denver, CO, United States
What they do:
The lightest electric aircraft motors in the world.
Quick facts:
HQ: Denver, CO, United States
Blissway
Hiring
What they do:
The tolling industry’s prime tech infrastructure
Quick facts:
HQ: Denver, CO, United States
What they do:
The financial foundation for every real estate development decision
Quick facts:
HQ: Denver, CO, United States
Offstream
Hiring
What they do:
Vanta for carbon compliance
Quick facts:
HQ: Denver, CO, United States
What they do:
Reliable infrastructure to build, deploy and manage real-world robots.
Quick facts:
HQ: Denver, CO, United States
What they do:
Kill the drone, keep the jet. Reusable unmanned interceptors.
Quick facts:
HQ: Denver, CO, United States
Quick facts:
HQ: Denver, CO, United States
Funding:
$1.5M · Debt · Jan 2026
Accept.inc (formerly BoardRE)
Acquired
What they do:
BoardRE is a new type of mortgage company that upgrades any offer…
Quick facts:
HQ: Denver, CO, United States
Heimdal
Shut down
What they do:
Affordable and verified direct air carbon capture and storage
Quick facts:
HQ: Denver, CO, United States
Pursuit
Shut down
What they do:
Turnkey co-ownership & management of properties
Quick facts:
HQ: Denver, CO, United States
Questions and answers
How many startups are on this list?
There are 13 startups on this list, last updated on Oct 15, 2026.
Which of them are hiring?
4 of them are hiring right now, including Quindar, Albedo, and Blissway.
Which of them have the largest teams?
By team size: Boom (227 employees), Accept.inc (formerly BoardRE) (80 employees), and H3X Technologies (58 employees).
Which of them raised money recently?
Latest rounds: Vartega — $1.5M Debt (Jan 2026).