- N Stonington (1 Company)
- Naugatuck (1,549 Companies)
- New Britain (6,106 Companies)
- New Canaan (1,864 Companies)
- New Fairfield (366 Companies)
- New Hartford (467 Companies)
- New Haven (9,180 Companies)
- New London (3,008 Companies)
- New Milford (2,565 Companies)
- New Preston (5 Companies)
- New Preston Marble Dale (212 Companies)
- Newington (2,695 Companies)
- Newtown (1,339 Companies)
- Niantic (844 Companies)
- Norfolk (176 Companies)
- North Branford (604 Companies)
- North Canaan (5 Companies)
- North Canton (2 Companies)
- North Franklin (305 Companies)
- North Granby (55 Companies)
- North Grosvenordale (182 Companies)
- North Haven (3,002 Companies)
- North Stonington (345 Companies)
- North Windham (237 Companies)
- Northfield (82 Companies)
- Northford (246 Companies)
- Norwalk (7,783 Companies)
- Norwich (3,380 Companies)
- Oakdale (214 Companies)
- Oakville (410 Companies)
- Old Greenwich (655 Companies)
- Old Lyme (802 Companies)
- Old Mystic (14 Companies)
- Old Saybrook (2,100 Companies)
