![Christopher Greenberg](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Christopher Greenberg
Corporate Officer/Principal chez
Express Services, Inc.
Fortune : 2 M $ au 31/05/2026
Profil
Christopher Greenberg was the founder of Greenberg Enterprises LLC, founded in 2015, and Global Safety Network, founded in 2002, holding the title of Chief Executive Officer from 2002 to 2021.
Mr. Greenberg is currently the Owner of Express Services, Inc. Former jobs include Chairman at Birchtech Corp.
from 2014 to 2025, Director at The Dental Service Corp.
of North Dakota, and Director at Energy & Environmental Research Center Foundation.
Education includes an undergraduate degree from the University of North Dakota, conferred in 1992.
Détentions connues dans des sociétés publiques
| Société | Date | Nombre d'actions | Valorisation | Date de valorisation |
|---|---|---|---|---|
BIRCHTECH CORP. 4,13% | 26/02/2026 | 1 086 107 ( 4,13% ) | 2 M $ | 31/05/2026 |
Postes actifs de Christopher Greenberg
| Sociétés | Poste | Début |
|---|---|---|
Express Services, Inc.
 Express Services, Inc. Personnel ServicesCommercial Services Provides staffing services and human resource solutions | Corporate Officer/Principal | - |
Anciens postes connus de Christopher Greenberg
| Sociétés | Poste | Fin |
|---|---|---|
| BIRCHTECH CORP. | Président | 01/07/2025 |
Global Safety Network
 Global Safety Network Miscellaneous Commercial ServicesCommercial Services Provides background investigation, drug free workplace program and training services | Directeur Général | 01/05/2021 |
Energy & Environmental Research Center Foundation | Directeur/Membre du Conseil | - |
The Dental Service Corp. of North Dakota | Directeur/Membre du Conseil | - |
Formation de Christopher Greenberg
Expériences
Fonctions occupées
Actives
Inactives
Sociétés cotées
Entreprise privées
Relations
56
Relations au 1er degré
6
Entreprises liées au 1er degré
Homme
Femme
Administrateurs
Exécutifs
Sociétés liées
| Entreprise privées | 6 |
|---|---|
Express Services, Inc.
Express Services, Inc. Personnel ServicesCommercial Services Provides staffing services and human resource solutions | Commercial Services |
University of North Dakota
 University of North Dakota Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Birchtech Corp.
 Birchtech Corp. Packaged SoftwareTechnology Services Develops mercury emission control technologies | Technology Services |
Global Safety Network
Global Safety Network Miscellaneous Commercial ServicesCommercial Services Provides background investigation, drug free workplace program and training services | Commercial Services |
The Dental Service Corp. of North Dakota | |
Energy & Environmental Research Center Foundation |
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