Triangle: Detailed Company Information & Corporate Profile
Summary
Triangle is a private company. The business currently specializes in Construction area. Triangle's headquarter is located at Grand Rapids, Michigan, USA. The number of employees is at least 25. Register with SignalHire to connect with Triangle employees and management.
| Triangle Website | triangle-inc.com |
| Phone Number | 1-616-453-3950 |
| Industries | |
| Triangle Headquarters address | 3769 3 Mile Road NW, Grand Rapids, MI, 49534 US |
| Company Size | 100-200 employees |
| Specialties | Construction Management, General Contracting, Design Build, Project Planning, Sustainable Building, LEED Consulting |
| SIC Code | 7380 |
| DMA Code | Grand Rapids Metropolitan Area |
| Founded | 1918 |
| Estimated Annual Revenue | $50M - 100M |
| Operating Status | Independent Company |
Estimated Website Traffic
The chart shows a growth in traffic to the triangle-inc.com website. In June, traffic increased to 2177, compared to 1868 in the previous month. The highest traffic in 2026 was recorded in January, reaching 3669 visits.
Workforce Turnover
Number of employees switched from or switched to
Departmental sample breakdown
Length of Employment
Triangle's workforce includes employees across a wide range of tenure levels.
6% have been with the company for 1 to 2 years9% have been with the company for 3 to 4 years6% have been with the company for 5 to 7 years9% have been with the company for 8 to 10 years70% have been with the company for more than 11 years
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Triangle Corporate Information: FAQ
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