List of companies based in Westport, Connecticut

This is a list of large or well-known interstate or international companies in the Westport, Connecticut area. , Westport was home to one Fortune 500 company: construction equipment manufacturer Terex (#402).

Charity

 * Save the Children

Food

 * Newman's Own Inc
 * Eatza Pizza

Investment management

 * Bridgewater Associates LP

Marketing & Media

 * Connoisseur Media
 * Labate Marketing - Marketing & Consulting Firm
 * dLife - multimedia diabetes education (and marketing) company with a weekly television program on CNBC

Companies formerly headquartered in Westport

 * Business Express Airlines
 * Pequot Capital Management - investment management
 * Playtex Products Inc. - feminine, infant, and skin care products
 * Terex Corp - #402 on the Fortune 500; construction and farm machinery