2,300+ local service businesses in New Haven in our database, refreshed October 2026.
30% publish an email address — 703 you can reach by cold email.
778 have no website listed and 2,300+ have no Google rating yet.
0% of rated businesses hold 4.5★ or better.
Area codes
(203)2,100+
(475)93
(860)27
(800)10
(866)7
(888)6
A few New Haven businesses
The Wm. M. Hotchkiss CompanyReal Estate
Marcus & MillichapLegal
The Blake HotelHotels
Kathleen Mary Brown BaroneMedical
Sandra's Next GenerationRestaurants
ElementsSoftware
Balanced Yoga StudioFitness & Gyms
Pedals Smoothie & Juice BarRestaurants
Reaching out in the USB2B cold email is governed by CAN-SPAM: honest headers and subject lines, a physical address and an opt-out you honor. Phone outreach has its own rules, especially for cell phones. Read our CAN-SPAM guide and cold-calling rules before you start.