Contractor profiles
- BOS Engineering & Environmental Services Inc.
- BOS Environmental Consulting
- Boulder and Beam
- Boyd Brothers Concrete
- Brazeau Sanitation
- Brent-Reg Construction Inc
- Brethour Brent Septic Tank Pumping Inc.
- Broadline Equipment Rentals
- Broadline Sanitation
- Brock Excavation & Septics
- Brock University
- Brooklin Concrete Products
- Bruce Peninsula Septic Service
- Bruinsma Excavating Ltd.
- Bryan's Septic Service
- BSI Septic Solutions
- Buckhorn Sand and Gravel
- Burley Excavating Inc.
- C & A Custom Designs Inc.
- C.F. Crozier & Associates
- C.F. Crozier & Associates Inc.
- C.O. Construction Ltd.
- C&H Pumping
- Caledon Excavation & Grading
- Call of the Wild Inc.
- Call Of The Wild Sanitation
- Cambium Inc.
- Campbell Septic Services
- Campbell's Garage and Sanitation
- Camping In Ontario/OPCA
- Canadian Drain Plumbing
- Canadian Sanitation
- Canadian Sanitation Inc.
- Canadian Shield Consultants
- Carleton Environmental Services
- Casselman Cement Ltd.
- Castle Sanitation
- Cedarwood Contracting & Excavation
- Central Sanitation
- Centre for Advancement of Water and Wastewater Technologies, Fleming College