Every new Connecticut business filing, every dayZweig-DiMenna
JOSEPH DIMENNA, Principal
Zweig-DiMenna is a long/short investment firm founded in 1984, based at 301 Riverside Avenue in Westport, CT, with additional offices in New York, NY. The firm's website provides investor access and contact information, and the filing lists principals Joseph DiMenna, Kevin Cannon, and Michael Link at a New York address.
Filed April 27, 2026 · Westport, CT · Fairfield County
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Connecticut Secretary of the State (business.ct.gov) · Entity 3432537 · Retrieved July 27, 2026
About Zweig-DiMenna
ZWEIG-DIMENNA INTERNATIONAL MANAGERS, INC. filed in Connecticut on April 27, 2026, and was first seen 91 days later. The company has three principals: Joseph DiMenna, Kevin Cannon, and Michael Link. Its domain was registered 10,202 days before filing, on May 22, 1998, with Network Solutions. The website is modern and identity confirmed. We estimate revenue between $10 million and $50 million and 26 to 100 employees. The company has a brick-and-mortar footprint. One related entity shares the same owner name. No annual report or EIN on file yet.
- Domain registered 10,202 days before filing, indicating a very long-established online presence.
- Three principals listed: Joseph DiMenna, Kevin Cannon, and Michael Link.
- We estimate revenue $10M-$50M and 26-100 employees.
- Brick-and-mortar footprint.
- One related entity with same owner name.
- First seen 91 days after filing.
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 62 new businesses registered in Westport in April 2026, one of 2 investment management 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.
Officers / Authorized Persons
Frequently Asked Questions
When was Zweig-DiMenna registered?
Zweig-DiMenna was registered as Corp on April 27, 2026 in Connecticut.
Where is Zweig-DiMenna located?
Zweig-DiMenna is based in Westport, CT, 06880, in Fairfield County.
What type of business is Zweig-DiMenna?
Zweig-DiMenna is classified as a investment management business (long/short equity).
Does Zweig-DiMenna have an EIN on file?
No EIN was found on file for Zweig-DiMenna at the time of registration.
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