Every new Colorado business filing, every daySuperior Underground
Superior Underground LLC is a Denver-based trenchless construction company founded in 2018. It specializes in providing superior results for trenchless projects, offering services such as complex underground installations.
Filed December 18, 2025 · Denver, CO · Adams County
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Colorado Secretary of State · Entity 20258363018 · Retrieved June 13, 2026
About Superior Underground
Superior Underground LLC filed in Colorado on December 18, 2025, as a trenchless construction company. Its domain was registered on March 8, 2018, through GoDaddy, nearly 8 years before filing. The modern website was built with GoDaddy Website Builder and confirms the business identity. Two other entities share its Denver address. We estimate revenue between $1 million and $10 million and 6 to 25 employees. No annual report or EIN on file yet. The Colorado authority was relinquished on January 12, 2026.
- Domain registered nearly 8 years before the company filed.
- Website built with GoDaddy Website Builder and identity confirmed.
- Two other entities share the same Denver address.
- We estimate revenue of $1M-$10M and 6-25 employees.
- Colorado authority relinquished less than a month after filing.
- 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 3,487 new businesses registered in Denver in December 2025, one of 21 construction 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 Superior Underground registered?
Superior Underground was registered as LLC on December 18, 2025 in Colorado.
Where is Superior Underground located?
Superior Underground is based in Denver, CO, 80229, in Adams County.
What type of business is Superior Underground?
Superior Underground is classified as a construction business (trenchless construction).
Does Superior Underground have an EIN on file?
No EIN was found on file for Superior Underground at the time of registration.
Who Sells to This Business
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