Top Startup Accelerators in Colorado in 2025

Colorado has emerged as a leading hub for innovation in 2025, driven by thriving communities in Denver, Boulder, and Colorado Springs. The state’s startup accelerators play a vital role in supporting founders across industries like SaaS, cleantech, healthtech, and outdoor innovation. Here are the top startup accelerators in Colorado in 2025.

1. Techstars Boulder

Founded in 2007, Techstars Boulder is one of the earliest and most prestigious Techstars programs. It provides $120K in seed funding, world-class mentorship, and access to the global Techstars network. Many alumni have scaled into industry leaders.

2. Techstars Sustainability (Denver)

A vertical program focusing on sustainability, climate tech, and environmental solutions. Startups benefit from corporate partnerships, impact-focused mentorship, and capital support.

3. Boomtown Accelerators (Boulder)

Boomtown offers programs in healthtech, connectivity, and human performance. It provides funding, expert coaching, and access to a community of innovators and investors.

4. Innosphere Ventures (Fort Collins)

Innosphere focuses on science- and technology-based startups, particularly in cleantech, medtech, and enterprise software. Its program includes incubation, mentorship, and connections to investors across the Mountain West.

5. Catalyst Accelerator (Colorado Springs)

Specializing in defense and space startups, Catalyst partners with the U.S. Air Force and Space Force. It provides sector-specific mentorship and funding to help dual-use technologies scale.

6. Telluride Venture Accelerator (TVA)

Located in Telluride, TVA supports early-stage companies in outdoor recreation, natural products, and sustainability. It offers funding, mentorship, and access to a network of investors passionate about mountain-town innovation.

7. Global Accelerator Network (GAN)

Headquartered in Denver, GAN is not a traditional accelerator but a network connecting founders to 100+ accelerators worldwide, alongside resources, mentors, and investors. Colorado startups benefit from its global reach.

8. Exponential Impact (Colorado Springs)

Focused on fintech, cybersecurity, and emerging technologies, Exponential Impact provides seed funding, mentorship, and coworking space to help startups scale.

9. Naturally Boulder’s Quick Pitch / Accelerator Programs

A community-driven accelerator supporting natural products and food startups. It connects founders to investors, industry veterans, and retail partners.

10. CanopyBoulder

A niche accelerator supporting cannabis, hemp, and ancillary tech startups. It provides seed capital, mentorship, and access to industry networks in a highly specialized vertical.

Accelerator Snapshot

Colorado’s diverse accelerators reflect the state’s strengths in sustainability, defense, outdoor industries, and emerging tech. Founders aiming to join these programs must present compelling materials and strong investor readiness. Peony helps by offering AI-powered file organization, branded data rooms, and engagement analytics—giving startups a professional edge in competitive accelerator applications.