Exhibit 21
Subsidiaries of the Registrant
1. Western Energy Management, Inc. ("WEM"), is a Delaware corporation and is a
wholly-owned subsidiary of the Company.
2. Onsite Energy Services, Inc. ("OES"), is a Kansas corporation and is a
wholly-owned subsidiary of the Company.
3. Onsite/Mid-States, Inc. ("OMS"), is a Kansas corporation and is a
wholly-owned subsidiary of OES.
4. SYCOM ONSITE Corporation ("SO Corporation"), is a Delaware corporation and
is a wholly-owned subsidiary of the Company.
5. Lighting Technology Services, Inc.("LTS"), is a California corporation and
is a wholly-owned subsidiary of the Company.
6. Onsite Energy de Panama, S.A. is a Panamanian corporation and is a
wholly-owned subsidiary of the Company.
7. REEP Onsite, Inc. ("REEP") is a Delaware corporation and is a wholly-owned
subsidiary of the Company.
8. ERSI Onsite, Inc. ("ERSI") is a Delaware corporation and is a wholly-owned
subsidiary of the Company.
