Here are reputable Canadian agencies that specialize (or have strong proven experience) in SEO for construction, HVAC, and logistics / industrial B2B. I’ve grouped them and noted why each is a fit so you can pick which to contact.

Top choices (nationwide / strong industry experience)

• Search Engine People (Toronto) — long-established Canadian SEO agency with documented work for home‑services and contractor clients (construction, HVAC). Good for mid‑to‑large budgets and enterprise/local mixes. (storytellermedia.ca)
• Local Propeller (Toronto) — known case studies for HVAC and construction/ecommerce HVAC (showing strong technical SEO + local strategy for trade clients). Good if you need both site build and SEO. (SEMrush.com)
• Green Lotus (Toronto) — positions itself as a top Canadian agency for HVAC and construction verticals with packageized HVAC/contractor offerings. Good for contractor-focused lead-generation. (greenlotus.ca)
• Storyteller Media (Atlantic Canada) — niche focus on home services / contractors (builders, trades); strong local SEO and content experience for smaller contractor businesses. (storytellermedia.ca)

Agencies strong for B2B / logistics / industrial SEO

• Ignite Digital (national) — full-service digital agency that serves B2B and industrial clients; useful for logistics/warehousing/freight SEO and integrated marketing. (Bluelinks.agency)
• seoplus+ (Canada / US) — experienced with industrial and professional services SEO, often hired by companies needing enterprise or multi‑location SEO programs. (Bluelinks.agency)
• Bluelinks / local specialist agencies (various) — agency directories (DesignRush, SEMrush, Bluelinks) list specialized agencies you can filter by industry and budget; helpful to find regional firms experienced in logistics, construction, or HVAC. (DesignRush.com)

Where to look for vetted portfolios and niche proof

• SEMrush agency listings and case studies (construction / HVAC categories) — good for seeing industry‑specific case studies and verified results. (SEMrush.com)
• DesignRush / Clutch / agency directories — filter by “construction,” “home services,” “industrial” to find agencies with client reviews and typical budgets. (DesignRush.com)

Quick selection checklist (use when contacting agencies)

• Ask for vertical case studies (construction/HVAC/logistics) with KPIs (organic traffic, leads, keywords).
• Confirm local SEO + Google Maps experience for contractor/HVAC businesses.
• For logistics/B2B, confirm experience with technical content, schema for products/services, and enterprise site technical SEO.
• Request typical timelines, minimum monthly budgets, and references from similar clients.

If you’d like, I can:

• shortlist 3–5 agencies from the list tailored to your company size, city/province, and budget; or
• draft an RFP/email template you can send to agencies asking the right industry-specific questions.