C1: Detailed Company Information & Corporate Profile

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Summary

C1 is an IT services company headquartered in Bloomington, Minnesota, operating within the Twin Cities region. Founded in 1993 and structured as a subsidiary, it specializes in managed services, professional and advisory solutions, cloud, business applications, modern workplace, cyber security, data center, enterprise networking, lifecycle services, communication platform as a service, AI, Gen AI, and infrastructure.

C1 employs between 1,000 and 5,000 professionals and achieves annual revenue in the $1B–$5B bracket. Leadership includes Vice President Mikki Williams for Total Rewards; Vicki Adams heading IT PMO; Shane Harper as Region Vice President of Sales West; Hemang Shah, Senior VP and ELT member overseeing IT; Pete McGuinness as Vice President Commercial Markets US East; Don O’Brien as Executive Vice President US Commercial; alongside customer success, growth marketing, engineering, and operations executives.

C1 Websiteonec1.com
Social Links
linkedInfacebooktwitter
Phone Number+1 866 768 7978
Industries
C1 Headquarters Address10900 Nesbitt Ave S, Bloomington, Minnesota, 55437 US
Company Size1000-5000 employees
Specialities & ServicesManaged 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 Code7371
NAICS Code541511 Custom Computer Programming Services
DMA CodeTwin Cities
Founded1993
Estimated Annual Revenue$1B - 5B
Operating StatusSubsidiary
Updated:2026-09-17

C1 Org Chart

Chief Executive Officer

C-Level

General Manager

Competitors

Name
Founded
Type
Employees
1975Public
Company
100K - 9.9M
2000Public
Company
5.0K - 10K
1983Public
Company
1.0K - 5.0K
2003Educational
Institution
25 - 100

Subsidiaries and Affiliated Companies

Estimated Website Traffic

The chart shows a growth in traffic to the onec1.com website. In September, traffic increased to 4685, compared to 3602 in the previous month. The highest traffic in 2026 was recorded in January, reaching 28546 visits.

Workforce Turnover

Number of employees switched from or switched to

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Total employee turnover

Departmental sample breakdown

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Turnover activity captured in SignalHire's departmental sample ( employees):

Length of Employment

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C1's workforce includes employees across a wide range of tenure levels.

1% have been with the company for less than 1 year6% have been with the company for 1 to 2 years12% have been with the company for 3 to 4 years11% have been with the company for 5 to 7 years26% have been with the company for 8 to 10 years44% have been with the company for more than 11 years

Former Employees: Role Changes

Role at Former Company
Role at New Company
Contact top employees from C1
Mikki Williams
Mikki WilliamsVice President, Total Rewards
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Vicki Adams
Vicki AdamsHead of IT PMO
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Shane Harper
Shane HarperRegion Vice President of Sales West
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Hemang Shah
Hemang ShahSenior Vice President, Head of IT, ELT member
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Pete McGuinness
Pete McGuinnessVice President Commercial Markets US East
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Michelle Brazil
Michelle BrazilRenewal Order Coordinator
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Laura Garelick
Laura GarelickCustomer Success Manager
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Katie Walls McPherson
Katie Walls McPhersonSr. Director, Growth Marketing
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Manuel Molinar
Manuel MolinarTechnical Analyst
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Stacey Cox
Stacey CoxCustomer Quality Assurance Manager
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Christina Carter
Christina CarterEnterprise Client Executive
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Vaibhav Jadhav
Vaibhav JadhavAssociate procurement Analyst
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Naga Raju
Naga RajuSenior Engineer -Carrier Management
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Koppula Kiran Kumar
Koppula Kiran KumarSenior specialist
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Staci Sharp
Staci SharpProcess Manager
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Jyothi Hiremath
Jyothi HiremathSenior Business Analyst
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C1 Corporate Information: FAQ

C1 operates in the IT Services industries. More details can be found on the official website: onec1.com.
C1 has offices located in Bloomington, US.
The headquarters of C1 are located in Bloomington, United States.
The current CEO of C1 is John A. McKenna
You can contact C1 by phone at +1 866 768 7978.
C1 currently employs 1000-5000 people.
Well-known competitors of C1 include Microsoft, Mosaix, Network Equipment Technologies and Presidio Graduate School.

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