- Management Consultants & Services, Coldstream
- Manufacturing, Coldstream
- Market Research & Analysis , Coldstream - Market Analysis, Business & Economic Research
- Masonry Contractors, Coldstream - Stone Mason, Brick Mason - Install & Repair
- Masonry Materials & Supplies, Coldstream
- Massage Therapists & Professional, Coldstream
- Massage Therapy, Coldstream
- Mining, Coldstream
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- Mining Contractors, Coldstream - Mining Companies, Contractors & Brokers
- Mining, Crude-Oil Production, Coldstream - Mining Companies
- Miscellaneous Agriculture, Coldstream
- Miscellaneous Business Services, Coldstream
- Miscellaneous Industry, Coldstream
- Miscellaneous Professional, Coldstream
- Motor Vehicle, Coldstream
- Motor Vehicle Rental & Leasing, Coldstream
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