Use this Connecticut EIN lookup to find an employer’s Employer Identification Number from its public Form 5500 filing. 15,342 employers based in Connecticut have filed a Form 5500, covering 17,547 retirement and health plans with $348.6B in reported assets. The largest are listed below with their EIN — open any employer to see the full filing.
Every employer that sponsors a retirement or health plan files a Form 5500 that lists its nine-digit Employer Identification Number. Find a Connecticut company in the table above, or run a Form 5500 search by company name to pull the filing and read the EIN directly from it.
For a broader view of plans in the state — including industry breakdowns and the largest plans by assets — see Form 5500 plans in Connecticut. New to these filings? Start with What is Form 5500?
EINs are drawn from the Form 5500 the employer filed with the U.S. Department of Labor. An employer’s EIN is the same across all of its plans — open a filing to confirm the sponsor name and address before relying on it.
