Every new Colorado business filing, every dayLassen Consulting
MICHAEL DAVID LASSEN, Registered Agent
Lassen Consulting provides strategic support to social enterprises and nonprofits. The website emphasizes data-driven solutions and custom software, marketing consulting, and technology services for small businesses, but the primary focus is on helping nonprofits and social enterprises achieve their goals.
Filed September 23, 2025 · Littleton, CO · Douglas County
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Colorado Secretary of State · Entity 20258042275 · Retrieved June 13, 2026
About Lassen Consulting
Lassen Consulting LLC was filed in Colorado on September 23, 2025, by owner Michael David Lassen, who also serves as the registered agent. The company is based in Littleton and focuses on nonprofit consulting. Its website went live sometime before we first saw it on June 13, 2026, 263 days after filing, and the site confirmed the business name and address. No annual report or EIN on file yet. We estimate revenue between $100K and $1M and 1 to 5 employees, operating online only.
- Filed personally by the owner, who is also the registered agent.
- Website went live 263 days after filing.
- Website identity confirmed the business name and address.
- We estimate revenue of $100K-$1M and 1-5 employees, online only.
- 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 24, 2026.
One of 300 new businesses registered in Littleton in September 2025, one of 5 consulting businesses.
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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 Lassen Consulting registered?
Lassen Consulting was registered as LLC on September 23, 2025 in Colorado.
Where is Lassen Consulting located?
Lassen Consulting is based in Littleton, CO, 80125, in Douglas County.
What type of business is Lassen Consulting?
Lassen Consulting is classified as a consulting business (nonprofit consulting).
Does Lassen Consulting have an EIN on file?
No EIN was found on file for Lassen Consulting at the time of registration.
Who Sells to This Business
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