Marketing Agencies in Connecticut

In short 401 marketing agencies in Ken's database have their headquarters in Connecticut (Oct 17, 2026).

In short By employee count in Ken's database, the largest is Octagon in Stamford with 1,001-5,000 employees.

In short We counted marketing agencies in Ken's database with headquarters in Connecticut on Oct 17, 2026.

• Filter: Companies in Advertising Services or Marketing Services, with headquarters in Connecticut, United States, and at least one employee on record.
• Headquarters only. Companies with just an office in Connecticut are not counted.
• These are companies in Ken's database (250M people and 24M companies), not every company that exists.
• Some records store the state with a ZIP code, and the state filter misses those, so read the count as a floor. The largest-companies table reads the state from each record's address, so it includes them.
• Counts as of Oct 17, 2026. We check them weekly, and the dates move only when a count or a listed company changes.
• Pages publish only at 50 companies or more. Ken is our product, and these counts come from its company database.

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