St. Catharines, ON Business Leads: 1,100+ with Phone & Email

By trade

What's in St. Catharines

Trade	Businesses	With email	Avg rating	No website
Construction companies	492	63	—	197
Medical clinics	223	20	—	120
Law firms	186	31	—	47
Dental clinics	76	13	—	19
Cleaning companies	62	6	—	27
HVAC companies	48	1	—	21
Landscaping companies	46	6	—	28
Roofing companies	34	1	—	12
Electrical contractors	33	3	—	16
Plumbing companies	31	2	—	17
Painting companies	22	2	—	9
Pest control companies	4	1	—	0

The market

St. Catharines at a glance

1,100+ local service businesses in St. Catharines in our database, refreshed October 2026.

12% publish an email address — 140 you can reach by cold email.

474 have no website listed and 1,100+ have no Google rating yet.

0% of rated businesses hold 4.5★ or better.

Area codes

(905)987
(289)133
(647)9
(416)6
(365)4
(800)4

A few St. Catharines businesses

Linda Martin PhysiotherapyMedical
Miller RestorationConstruction
End of The Roll - St. CatharinesConstruction
ADraaistra ContractingConstruction
Gillet Painting & DecoratingConstruction, Painting
Nicole Henderson Professional Corporation Chartered Professional AccountantLegal
OMG Cleaning SvcCleaning
H&R BlockLegal

Reaching out in CanadaCold email to Canadian businesses falls under CASL, and phone outreach falls under the CRTC's telemarketing rules. A business address that's published publicly can support implied consent for messages relevant to that business, but every email still needs your identity and a working unsubscribe. Read our plain-English CASL guide and cold-calling rules before your first campaign.

Local business leads in St. Catharines, ON

What's in St. Catharines

St. Catharines at a glance

Area codes

A few St. Catharines businesses

Find your next customers in St. Catharines

What's in St. Catharines

St. Catharines at a glance

Area codes

A few St. Catharines businesses

Nearby in Ontario

Find your next customers in St. Catharines