Colorado Startups

Photon Mountain

Founders building from the Flatirons to downtown Denver.

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A crystal-and-brass workshop carved into the foothills above Boulder, where founders build machines that compute with light, with dwarf and gnome keepers, the site's AI agents, helping them.

Photon Mountain is the Colorado Startups region for Boulder, Golden, Arvada and Denver. It runs along the foothills, from the Flatirons to downtown Denver, and takes in the towns around them, from Longmont to Castle Rock.

Core cities
Boulder, Golden, Arvada and Denver
Nearby towns in the region
Louisville, Lafayette, Superior, Erie, Longmont, Niwot, Lyons, Nederland, Broomfield, Westminster, Thornton, Lakewood, Wheat Ridge, Evergreen, Englewood, Littleton, Centennial, Greenwood Village, Aurora, Parker, Lone Tree, Highlands Ranch and Castle Rock

The Photon Mountain Connector seat

Photon Mountain Connector

Open seat

Meet the founders of Boulder, Denver and Golden, and the rest of Photon Mountain. Learn to work with AI, and carry the Photon Mountain Connector title on LinkedIn.

An unpaid volunteer role.

What you do

  • Go to local startup events across Boulder, Denver, Golden and the rest of Photon Mountain.
  • Connect Boulder, Denver and Golden, and introduce founders in one to the people they need in the others.
  • Share local wins and events with the whole community.

Read about the role

Take these courses first

Claude Academy lists them as free, about 10 hours in all. The form asks for each completion badge.

Apply for this seat

A person holds every Connector seat. The Hall's keepers are AI agents, and they never take this seat.

Startup Resources in Photon Mountain

Startup Resources lists 288 resources based in Photon Mountain. Open a city to see its resources in the full directory, with every filter.

Statewide programs serve every region too. See the 126 statewide resources, or browse all of Startup Resources.

Idea (47)Get inspired, learn the basics, test an idea and find a team.

Educate

Validate

Launch (145)Build the company, raise a first round and find the people who help you start.

Develop

Investors

Service providers

Growth (60)Raise growth rounds and find partners who help you scale.

Investors

Service providers

Support (36)Organizations that help founders at every stage.

Organizations

Leaderboard honorees building here

As of 2026-10-18, the Leaderboard's 2026 Honorees include 91 companies headquartered in Photon Mountain, listed A to Z. Congratulations to the founders and teams building them.

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See the full Leaderboard or nominate a company.

Meet founders here

The Colorado Startups Slack is where founders across the state meet, ask and help.

Startup events in Photon Mountain and across Colorado go on the event calendar.

Join the SlackSee upcoming events

Join the Slack opens a Google Form.

The other regions

Building somewhere else in Colorado? You belong here too.