John R. Callahan
Plus aucun poste en cours
Historique de carrière de John R. Callahan
Anciens postes connus de John R. Callahan
| Sociétés | Poste | Début | Fin |
|---|---|---|---|
| Globalcast Communications, Inc. | Directeur/Membre du Conseil | 01/01/1995 | 01/01/1998 |
Xerox Corp.
 Xerox Corp. Computer PeripheralsElectronic Technology Xerox Corp. engages in the integration of paper and digital products. The firm offers home, office, office laser, multifunction and all in one printer, digital sheet-fed printing presses and scanner. The company was founded in 1906 and is headquartered in Norwalk, CT. | Corporate Officer/Principal | 01/01/1985 | 01/01/1988 |
| IBM | Corporate Officer/Principal | 01/01/1981 | - |
| US Air Force | Corporate Officer/Principal | 01/01/1982 | - |
Quantum Solutions LLC
 Quantum Solutions LLC Information Technology ServicesTechnology Services Quantum Solutions LLC provides network design and information technology consulting services. The firm provides both consulting and technical support to individual and business clients. The company was founded in 1985 and is headquartered in Owings Mills, MD. | Corporate Officer/Principal | - | - |
Statistiques
Internationale
| Etats-Unis | 6 |
Opérationnelle
| Corporate Officer/Principal | 4 |
| Director/Board Member | 1 |
Sectorielle
| Technology Services | 4 |
| Electronic Technology | 2 |
| Government | 2 |
Fonctions occupées
Actives
Inactives
Sociétés cotées
Entreprise privées
Sociétés liées
| Sociétés cotées | 1 |
|---|---|
| IBM | Technology Services |
| Entreprise privées | 4 |
|---|---|
Quantum Solutions LLC
Quantum Solutions LLC Information Technology ServicesTechnology Services Quantum Solutions LLC provides network design and information technology consulting services. The firm provides both consulting and technical support to individual and business clients. The company was founded in 1985 and is headquartered in Owings Mills, MD. | Technology Services |
Xerox Corp.
Xerox Corp. Computer PeripheralsElectronic Technology Xerox Corp. engages in the integration of paper and digital products. The firm offers home, office, office laser, multifunction and all in one printer, digital sheet-fed printing presses and scanner. The company was founded in 1906 and is headquartered in Norwalk, CT. | Electronic Technology |
| Globalcast Communications, Inc. | Technology Services |
| US Air Force | Government |
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