- N Stonington (1 Company)
- Naugatuck (1,553 Companies)
- New Britain (6,113 Companies)
- New Canaan (1,868 Companies)
- New Fairfield (369 Companies)
- New Hartford (469 Companies)
- New Haven (9,204 Companies)
- New London (3,011 Companies)
- New Milford (2,567 Companies)
- New Preston (5 Companies)
- New Preston Marble Dale (212 Companies)
- Newington (2,698 Companies)
- Newtown (1,343 Companies)
- Niantic (845 Companies)
- Norfolk (177 Companies)
- North Branford (607 Companies)
- North Canaan (5 Companies)
- North Canton (2 Companies)
- North Franklin (306 Companies)
- North Granby (55 Companies)
- North Grosvenordale (183 Companies)
- North Haven (3,006 Companies)
- North Stonington (347 Companies)
- North Windham (237 Companies)
- Northfield (82 Companies)
- Northford (248 Companies)
- Norwalk (7,797 Companies)
- Norwich (3,383 Companies)
- Oakdale (214 Companies)
- Oakville (411 Companies)
- Old Greenwich (657 Companies)
- Old Lyme (806 Companies)
- Old Mystic (14 Companies)
- Old Saybrook (2,103 Companies)
