C1 Information
Summary
C1 is a private company that has been in the industry for 33 years. The company currently specializes in the Information Technology and Services, IT Services areas. The position of the Chairman & CEO is occupied by John A. McKenna. Its headquarters is located at Bloomington, Minnesota, USA. The number of employees ranges from 1.0K to 5.0K. The annual revenue of C1 varies between 1.0B and 5.0B. To connect with C1 employee register on SignalHire.
Organization Website | onec1.com |
Social Links |    |
Phone Number | +1 866 768 7978 |
Industries | |
Headquarters Location | 10900 Nesbitt Ave S, Bloomington, Minnesota, 55437 US |
Employees Size | 1000-5000 employees |
Specialties | Managed Services, Professional Services, Advisory Services, Cloud, Business Applications, Customer Experience, Modern Workplace, Cyber Security, Data Center, Enterprise Networking, Lifecycle Services, Communication Platform as a Service, AI, Gen AI, Infrastructure |
SIC Code | 7371 |
DMA Code | Twin Cities |
Founded | 1993 |
Estimated Annual Revenue | $1.0B - 5.0B |
Operating Status | Subsidiary |
Competitors
Founded | Type | Employees | Revenue | Funding | |
|---|---|---|---|---|---|
| 1975 | Public Company | 100K - 9.9M | 168.1B | $61M | |
| 2000 | Public Company | 5.0K - 10K | 3B | $1.4B | |
| 1983 | Public Company | 1.0K - 5.0K | 251.3M | $115M | |
| 2003 | Educational Institution | 25 - 100 | 8.5M | $350K |
Subsidiaries and Affiliated Companies
Estimated Website Traffic
The chart shows a growth in traffic to the onec1.com website. In December, traffic increased to 27570, compared to 26465 in the previous month. The highest traffic in 2025 was recorded in August, reaching 28445 visits.
Employees Turnover 4 quarter 2025
Number of employees switched from or switched to
Length of Employment
Employee tenure at C1 shows a diverse range of experience levels:
2% have been with the company for less than 1 year12% for 1–2 years13% for 3–4 years17% for 5–7 years20% for 8–10 years37% have over 11 years of service at C1Ex-employees positions
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