19,000+ local service businesses in San Francisco in our database, refreshed October 2026.
30% publish an email address — 5,700+ you can reach by cold email.
5,300+ have no website listed and 18,000+ have no Google rating yet.
79% of rated businesses hold 4.5★ or better.
Area codes
(415)16,000+
(650)364
(628)240
(510)203
(888)159
(800)122
A few San Francisco businesses
A-1 DrywallConstruction · 4.6★
Mendoza's Landscaping Tree ServicesLandscaping · 5.0★
Grgich Electric CompanyElectrical · 5.0★
C&L Plumbing IncPlumbing · 4.6★
Lee Family CorporationConstruction, Roofing · 4.7★
Randy Thueme DesignLandscaping · 5.0★
Only Kitchens and Baths IncConstruction · 5.0★
Sharp Plumbing Solutions IncPlumbing · 5.0★
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.