The BlueBook: Designed for large commercial projects

[sweetyakter]

Porch: Similar to Angi and Thumbtack, focused on home services, particularly for larger budgets.
Yelp: A well-known platform for local business reviews. Optimizing your Yelp profile and managing reviews can attract leads.
Nextdoor: A community-driven platform where contractors can engage with locals and get direct project inquiries in their immediate service area.
CraftJack: Delivers real-time leads for home services.
For Commercial & Large Project Contractors (B2B):

ConstructConnect (formerly BidClerk): belgium phone number list A leading platform for commercial and industrial construction leads, offering an extensive database of projects at various stages (planning, bidding, pre-construction).

Building Radar / Glenigan: Provide insightful leads for construction professionals by tracking new construction projects and providing industry data.
Considerations for Marketplaces:

Cost per Lead: Often pay-per-lead or subscription-based, which can become expensive.
Competition: High competition means you need a strong profile and quick response times.
Lead Quality: Can vary, so prompt qualification is essential.