John R. Callahan

John R. Callahan

Technology Services
Electronic Technology
Government

Network origin in John R. Callahan first degree

EntityEntity typeIndustry
28
Subsidiary Computer Peripherals 28
Globalcast Communications, Inc.
3
Extinct Packaged Software 3

Chart of Companies connected to the second degree

Multi-company connection

Companies connected to John R. Callahan via their personal network

CompanySectorRelated peopleMain position
Real Estate Investment Trusts

Thomas McEachin

Director/Board Member

TELLABS, INC. Telecommunications Equipment

William F. Souders

Director/Board Member

Packaged Software

Michael L. Weiner

Chief Executive Officer

Rochester Christian University College/University

Austin Vanchieri

Masters Business Admin

Investment Managers

Joe E. Casey

Corporate Officer/Principal

Wholesale Distributors

Timothy James McCarrick

Director/Board Member

SAFEPLUS INTERNATIONAL HOLDINGS LIMITED Medical Specialties

Michael L. Weiner

Chief Executive Officer

Technology Innovations LLC

Michael L. Weiner

Founder

Electronic Equipment/Instruments

Ralph C. Merkle

Corporate Officer/Principal

MANNING & NAPIER, INC. Investment Managers

Michael L. Weiner

Corporate Officer/Principal

College/University

Joe E. Casey

Masters Business Admin

Stanford University College/University

John F. Shoch

Ralph C. Merkle

Kerry Brown

Undergraduate Degree

Doctorate Degree

Undergraduate Degree

University of Pennsylvania College/University

Michael L. Weiner

Undergraduate Degree

College of the Holy Cross (Massachusetts) College/University

Joe E. Casey

Undergraduate Degree

Personnel Services

David W. Barfield

Chief Executive Officer

Investment Managers

Joe E. Casey

Private Equity Investor

Commercial Printing/Forms

Gary R. Kabureck

Hervé N. Tessler

Director/Board Member

Director/Board Member

Information Technology Services

Austin Vanchieri

Chief Executive Officer

Aerospace & Defense

Thomas McEachin

Investor Relations Contact

Information Technology Services

Austin Vanchieri

Chief Executive Officer

Miscellaneous Commercial Services

Michael L. Weiner

Corporate Officer/Principal

Investment Managers

Joe E. Casey

Sales & Marketing

University of California, Los Angeles College/University

Michael L. Weiner

Graduate Degree

Electrical Products

Michael L. Weiner

Director/Board Member

City University of New York College/University

Austin Vanchieri

Undergraduate Degree

Cleary University College/University

David W. Barfield

Director/Board Member

Georgia Institute of Technology College/University

Ralph C. Merkle

Corporate Officer/Principal

University of Michigan College/University

David W. Barfield

Masters Business Admin

Georgetown University College/University

David W. Barfield

Undergraduate Degree

Other Consumer Services

Ralph C. Merkle

Director/Board Member

Biomed Solutions LLC

Michael L. Weiner

Director/Board Member

Miscellaneous Commercial Services

David W. Barfield

Director/Board Member

Medical Specialties

Thomas McEachin

Director of Finance/CFO

Other Consumer Services

Thomas McEachin

Director/Board Member

Nanoset LLC

Michael L. Weiner

Director/Board Member

Investment Managers

Joe E. Casey

Private Equity Investor

IMPELLAM GROUP PLC Personnel Services

David W. Barfield

Corporate Officer/Principal

PEDIATRIX MEDICAL GROUP, INC. Medical/Nursing Services

Thomas McEachin

Director/Board Member

Other Consumer Services

Thomas McEachin

Director/Board Member

Pharmaceuticals: Major

Ralph C. Merkle

Founder

SURGALIGN HOLDINGS, INC. Medical Specialties

Thomas McEachin

Director/Board Member

Covidien Surgical Solutions Group

Thomas McEachin

Director of Finance/CFO

FEDERAL REALTY INVESTMENT TRUST Real Estate Investment Trusts

Thomas McEachin

Director/Board Member

Statistics

International

United States 46
United Kingdom 4
China 2
Bermuda 2

Sectoral

Consumer Services 16
Finance 8
Technology Services 6
Commercial Services 6
Electronic Technology 5

Operational

Corporate Officer/Principal 81
Director/Board Member 80
Founder 34
Chief Executive Officer 24
Undergraduate Degree 22