Every new Colorado business filing, every day2 biotechnology businesses recently registered in Castle Rock, Colorado.
Updated August 19, 2026 · Most recent business filing Jun 2, 2026

Every new Colorado filing, every day
See how it worksThis page lists new biotechnology businesses registered in Castle Rock, Colorado. We currently track 2, sourced directly from the Colorado Division of Corporations and refreshed daily as new biotechnology companies file.
Recent additions include Colussus Biolabs and Onward Therapeutics. The most recent biotechnology business filing was on Jun 2, 2026.
Each entry shows the filing date and, where we can verify it, the owner name and contact details. If you sell to biotechnology businesses in Castle Rock, this is one of the freshest prospect lists in the market.
Colussus Biolabs LLC is a registered business in Castle Rock, Colorado, based on the filing address and a directory listing. The company name suggests a biotechnology or laboratory focus, but no operational details or official website are available.
Onward Therapeutics LLC is a clinical-stage oncology company based in Castle Rock, CO. The company focuses on identifying innovative technologies and advancing breakthrough medicines for cancer treatment. Its website provides contact information and describes its mission.
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