C12 Business Forums: Detailed Company Information & Corporate Profile

Contact top employees from C12 Business Forums

Summary

C12 Business Forums was founded in 1992 and is headquartered in San Antonio, Texas, serving the Greater San Antonio DMA. With a workforce of 100‑200 employees, the independent company reports annual revenue between $50 million and $100 million, operating under SIC code 7380.

C12 specializes in peer advisory groups, MBA‑level curriculum development, one‑on‑one executive coaching, and CEO roundtables. The organization also hosts conferences and events that deliver strategic benefits to a national network of like‑minded Christian leaders. Its offerings are designed for business executives seeking tailored guidance and collaborative learning environments.

The leadership roster includes Tom Rivers as Owner and Chair of C12 Greater Detroit, Sergio Damiani as Vice President of Global Field Operations, Doug Hagedorn as Chairman, Danielle Whah as Principal Chair for C12 West Michigan | Northern Indiana, and several regional chairs such as Donovan Crosby (Atlanta) and Robert Wainner (Central Texas). Key members also feature Angela Chang on the board of the Taiwan Chapter, underscoring C12’s international reach.

C12 Business Forums Websitejoinc12.com
Social Links
twitterlinkedInfacebook
Phone Number210-767-6200
Industries
C12 Business Forums Headquarters Address777 E Sonterra Blvd, San Antonio, Texas, 78258 US
Company Size100-200 employees
Specialities & ServicesPeer Advisory Groups, MBA-level curriculum, One-on-One Executive Coaching, National network of like-minded Christian leaders, Strategic Benefits, Conferences and Events, executive coaching, CEO Roundtable
SIC Code7380
DMA CodeGreater San Antonio
Founded1992
Estimated Annual Revenue$50M - 100M
Operating StatusIndependent Company
Updated:2026-09-14

Estimated Website Traffic

The chart shows a decline in traffic to the joinc12.com website. In August, traffic decreased to 19879, compared to 21089 in the previous month. The highest traffic in 2026 was recorded in July, reaching 21089 visits.

Workforce Turnover

Number of employees switched from or switched to

arrow
Total employee turnover

Departmental sample breakdown

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

Length of Employment

arrow

C12 Business Forums's workforce includes employees across a wide range of tenure levels.

9% have been with the company for 1 to 2 years13% have been with the company for 3 to 4 years17% have been with the company for 5 to 7 years13% have been with the company for 8 to 10 years48% 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 C12 Business Forums
Tom Rivers
Tom RiversOwner | C12 Greater Detroit | Chair
Unlock contacts
Sergio Damiani
Sergio DamianiVice President of Global Field Operations
Unlock contacts
David Gurley
David GurleyField Consultant
Unlock contacts
Unlock contacts
Danielle Whah
Danielle WhahPrincipal Chair, C12 West Michigan | Northern Indiana
Unlock contacts
Unlock contacts
Donovan Crosby
Donovan CrosbyAtlanta Chair
Unlock contacts
Braden Ruch
Braden RuchC12 Greater Charlotte, Associate Chair
Unlock contacts
Unlock contacts
Jayson Berg
Jayson BergC12 Chair
Unlock contacts
Unlock contacts
JJ Hedden
JJ HeddenMember
Unlock contacts
Robert Wainner
Robert WainnerC12 Business Forums Chair — Central Texas
Unlock contacts
Keri Rueschen
Keri RueschenPrincipal Chair C12 Southeast Louisiana
Unlock contacts
Cesar Menezes
Cesar MenezesChair C12
Unlock contacts
Angela Chang
Angela ChangBoard Member of Taiwan Chapter
Unlock contacts

C12 Business Forums Corporate Information: FAQ

C12 Business Forums operates in the Tutoring industries. More details can be found on the official website: joinc12.com.
C12 Business Forums has offices located in San Antonio, US.
The headquarters of C12 Business Forums are located in San Antonio, United States.
The current CEO of C12 Business Forums is Mike Sharrow
You can contact C12 Business Forums by phone at 210-767-6200.
C12 Business Forums currently employs 100-200 people.

Data Privacy

GDPR Icon

GDPR COMPLIANT

SignalHire complies with the General Data Protection Regulation (GDPR). SignalHire follows GDPR requirements, including but not limited to rights of data subjects to access, correct, or delete their personal information and supports the right to be forgotten.

CCPA Icon

CCPA COMPLIANT

SignalHire is CCPA-compliant and provides California residents the right to know, access, opt out, and request deletion of their personal data.

BACK TO TOP