Fifth Wall is the largest venture firm focused on the built environment, and its page on apis.io tracks 46 portfolio companies, of which 16 (35%) publish APIs indexed here. The portfolio rating is 24.3, emerging, with a composite average of 29.4 across those 16, no strong or exemplar companies, and 4 agent-ready.
One row in that list is wrong in a way that changes the reading. The portfolio places Procore tenth, at 29.3 (thin) with 1 API and 0.6 on Agent Readiness, human-only. Procore’s own provider record scores 67.6, exemplar, scored 2026-11-02, with 41.3 on Agent Readiness (agent-ready) and 534 split specs behind it.
The portfolio as the page shows it
| Company | API count | Score | Band | Agent |
|---|---|---|---|---|
| Notarize | 12 | 54.0 | developing | 44.0 |
| ServiceTitan | 8 | 54.0 | developing | 24.4 |
| Loop | 2 | 44.7 | developing | 30.7 |
| Loggi | 18 | 42.9 | developing | 37.0 |
| VTS | 1 | 41.9 | developing | 37.2 |
| Procore | 1 | 29.3 | thin | 0.6 |
Procore is not the only stale row. ServiceTitan’s provider page reads 57.1, strong, and Notarize’s reads 61.9. With current numbers, the portfolio has at least one exemplar and its leader is a construction-management platform, not a notarization service.
What the rest of the list says
The bottom of the portfolio is the familiar VC pattern. 30 of 46 companies have no published API here. Opendoor is at 18.6 and human-only, and SmartRent, a smart-building company the firm names among its category leaders, sits at 4.3. Blend Labs and Knock are tracked but not scored.
The firm’s thesis is that buildings and the physical world should become smarter and more connected. On this network, the companies carrying that thesis with public contracts are the operational software vendors (Procore, ServiceTitan, VTS), not the property-tech consumer brands.
What is ours to fix
The portfolio rollup is reading older scores than the provider records. Procore’s gap is the largest we found in this portfolio, 38.3 points and a jump from human-only to agent-ready, which suggests the rollup captured Procore before its contracts were split and scored. It needs a rebuild, and until then the 24.3 portfolio rating understates Fifth Wall’s API footprint.
Takeaway
Use the Fifth Wall page to see who is in the portfolio, and the provider pages for how they score. For construction and field-service APIs, Procore and ServiceTitan are the two records to start from.