Building 21: Detailed Company Information & Corporate Profile
Summary
Building 21 is a private company that has been in the industry for 14 years. The company currently specializes in the Nonprofit Organization Management area. Its headquarters is located at Philadelphia, Pennsylvania, USA. The number of employees ranges from 25 to 100. The annual revenue of Building 21 varies between 10M and 50M. Total funding of the company - $150K. To connect with Building 21 employee register on SignalHire.
| Building 21 Website | building21.org |
| Social Links |    |
| Industries | |
| Building 21 Headquarters address | Philadelphia, US |
| Company Size | 10-50 employees |
| Specialties | Competency-based Education, School Startup, Professional Development, Consulting, School Operations, Workforce Development |
| SIC Code | 8300 |
| DMA Code | Delaware Valley |
| Founded | 2013 |
| Estimated Annual Revenue | $10M - 50M |
| Operating Status | Independent Company |
Estimated Website Traffic
The chart shows a decline in traffic to the building21.org website. In April, traffic decreased to 7362, compared to 8002 in the previous month. The highest traffic in 2026 was recorded in February, reaching 8296 visits.
Workforce Turnover
Length of Employment
Building 21's workforce includes employees across a wide range of tenure levels.
25% have been with the company for 1 to 2 years25% have been with the company for 3 to 4 years25% have been with the company for 5 to 7 years25% have been with the company for 8 to 10 years
Phone (1)
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Companies Similar to Building 21
Building 21 Corporate Information: FAQ
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