415 local service businesses in Halethorpe in our database, refreshed October 2026.
32% publish an email address — 133 you can reach by cold email.
113 have no website listed and 415 have no Google rating yet.
0% of rated businesses hold 4.5★ or better.
Area codes
(410)309
(443)87
(240)4
(301)4
(800)3
(202)2
A few Halethorpe businesses
Catonsville Plumbing Heating & Air ConditioningHVAC, Plumbing
Ferguson Fire & FabricationConstruction
Deco Recovery ManagementConsulting
Van Plumbing & Drain, LLCPlumbing
Roofers & WaterproofersConstruction, Roofing
EKAD StudioConstruction
Icon Service CenterAuto Repair
Beltway CompanyAuto Dealers
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.