Every new Colorado business filing, every dayTheiagen Consulting
JOEL SEVINSKY, Principal
Theiagen Consulting LLC is a bioinformatics consulting firm based in Highlands Ranch, Colorado, specializing in next-generation sequencing (NGS) solutions, Terra genomics, and public health pathogen analysis. The company is an APHL 2023 Platinum Member and provides services to public health laboratories. The business is operated by principals Joel Sevinsky and Greg Legacki, both listed on the LLC filing and featured on the company website.
Filed July 14, 2026 · Highlands Ranch, CO · Douglas County
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Colorado Secretary of State · Entity 3479075 · Retrieved July 26, 2026
About Theiagen Consulting
Theiagen Consulting LLC filed in Colorado on July 14, 2026, with a principal address in Highlands Ranch. The company lists Joel Sevinsky and Greg Legacki as principals. Its domain was registered nearly eight years before filing, on November 22, 2018, through Squarespace Domains. The website matches the filing name and address, and we estimate revenue between $1 million and $10 million with 6 to 25 employees. No annual report or EIN is on file yet.
- Domain registered 2,791 days before the filing date, indicating long-standing web presence.
- Filed in Colorado with a principal address in Highlands Ranch.
- Two principals listed: Joel Sevinsky and Greg Legacki.
- Website identity confirmed to match the filing name and address.
- We estimate revenue of $1M-$10M and 6-25 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 114 new businesses registered in Highlands Ranch in July 2026, and the only bioinformatics consulting 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.
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Frequently Asked Questions
When was Theiagen Consulting registered?
Theiagen Consulting was registered as LLC on July 14, 2026 in Colorado.
Where is Theiagen Consulting located?
Theiagen Consulting is based in Highlands Ranch, CO, 80129, in Douglas County.
What type of business is Theiagen Consulting?
Theiagen Consulting is classified as a bioinformatics consulting business (public health genomics & ngs solutions).
Does Theiagen Consulting have an EIN on file?
No EIN was found on file for Theiagen Consulting at the time of registration.
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