Triangle: Detailed Company Information & Corporate Profile
Summary
Triangle is a private company. The company currently specializes in the Construction area. Its headquarters is located at Grand Rapids, Michigan, USA. The number of employees ranges from 25 to 100. The annual revenue of Triangle varies between 5.0M and 25M. Total funding of the company - $2M. To connect with Triangle employee register on SignalHire.
| 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 | $5.0M - 25M |
| Operating Status | Independent Company |
Estimated Website Traffic
The chart shows a decline in traffic to the triangle-inc.com website. In February, traffic decreased to 3272, compared to 3669 in the previous month. The highest traffic in 2026 was recorded in January, reaching 3669 visits.
Workforce Turnover
Number of staff members switched
Departmental sample breakdown
Corporate Tenure Analytics
Triangle's workforce includes employees across a wide range of tenure levels.
2% have been with the company for less than 1 year5% have been with the company for 1 to 2 years7% have been with the company for 3 to 4 years10% have been with the company for 5 to 7 years7% have been with the company for 8 to 10 years68% have been with the company for more than 11 years
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Triangle Corporate Information: FAQ
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