Every new Colorado business filing, every dayMastery Climbing Collective
ANDREW KARL ROTHNER, Registered Agent
Andrew Rothner Personal Training operates as Mastery Climbing Collective, a climbing coaching service based in Golden, Colorado. Led by Andrew Rothner, the business offers custom training plans in strength, mobility, technique, mindset, and mental training. The website highlights Rothner's extensive climbing experience, including V14 boulders and 5.13+ trad routes.
Filed July 20, 2026 · Golden, CO · Jefferson County
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Colorado Secretary of State · Entity 20261871240 · Retrieved July 22, 2026
About Mastery Climbing Collective
Andrew Rothner Personal Training LLC filed in Colorado on July 20, 2026, and was first seen two days later. The owner, Andrew Karl Rothner, filed personally as the registered agent. The domain was registered 265 days before filing, through GoDaddy. The website is modern, built with Wix Website Builder, and confirmed to match the filing name and address. No annual report or EIN is on file yet. We estimate revenue under $100,000 and 1-5 employees.
- Domain registered 265 days before the Colorado filing.
- Owner Andrew Karl Rothner filed personally as the registered agent.
- Website is modern, built with Wix Website Builder, and confirmed to match the filing name and address.
- We estimate revenue under $100,000 and 1-5 employees.
- No annual report or EIN on file yet.
Compiled from the state record, the company's public web presence, and our own research; revenue, employee, and footprint figures are estimates, not verified financials. Updated August 23, 2026.
One of 100 new businesses registered in Golden in July 2026, and the only fitness and personal training business registered there that month.
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Filing Details
Verified Business Profile
Contact Information
Verified Website Profile
We matched this business to its website and pulled the domain's registration (WHOIS) record. Domain age is one of the strongest signals that a filing is a truly new business and not a re-filing or paperwork change.
Frequently Asked Questions
When was Mastery Climbing Collective registered?
Mastery Climbing Collective was registered as LLC on July 20, 2026 in Colorado.
Where is Mastery Climbing Collective located?
Mastery Climbing Collective is based in Golden, CO, 80401, in Jefferson County.
What type of business is Mastery Climbing Collective?
Mastery Climbing Collective is classified as a fitness and personal training business (climbing coaching).
Does Mastery Climbing Collective have an EIN on file?
No EIN was found on file for Mastery Climbing Collective at the time of registration.
Who Sells to This Business
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