I was looking for a list of marketplaces so I could look for opportunities to build B2B SaaS products.
I couldn't find it, so I spent some time pulling one together. Hopefully this is useful for someone else.
Let me know if you have recommendations for which are worth exploring, or which aren't!
Creative & Design Tools
E-commerce & Online Stores
CRM & Sales
Marketing & Email Automation
Business Operations & Finance
Project Management & Productivity
Communication & Collaboration
HR & People Management
Content Management & Web Development
File Storage & Cloud Services
Data & Analytics
Automation & Integration Platforms
Enterprise & IT Systems
You're onto something. I built Pick an Agency as a directory first, and the real leverage came after indexing enough supply to let buyers see patterns themselves. The marketplace impulse (to take transaction cuts) is tempting, but most directories monetize better by staying free to the buyer side and letting the supply side claim profiles. The data becomes valuable later, not the commissions.