Exhibit 21
THERMO TERRATECH INC.
Subsidiaries of the Registrant
As of June 5, 2000, Thermo TerraTech Inc. owned the following companies:
<TABLE>
<CAPTION>
<S> <C> <C> <C>
NAME STATE OR PERCENT OF
JURISDICTION OF OWNERSHIP
INCORPORATION
------------------------------------------------------------------------------------------------------------
Holcroft (Canada) Limited Canada 100
Holcroft Corporation Delaware 100
Holcroft GmbH Germany 100
TTT Metals of Minnesota, Inc. Minnesota 100
TTT Metals of California, Inc. California 100
TTT Metals of Wisconsin, Inc. Wisconsin 100
Normandeau Associates, Inc. New Hampshire 100
TMA/Hanford, Inc. Washington 100
The Randers Killam Group Inc. Delaware 95
(additionally, 5% of the shares are owned
directly by Thermo Electron Corporation)
Clark-Trombley Consulting Engineers, Inc. Michigan 100
Thermo REI Inc. Michigan 100
Randers Engineering of Massachusetts, Inc. Michigan 100
RGPC Inc. Michigan 100
Thermo RDC Inc. Michigan 100
Thermo VTC Inc. Michigan 100
The Killam Group, Inc. Delaware 100
CarlanKillam Consulting Group, Inc. Florida 100
CarlanKillam Consulting Group of Alabama, Inc. Alabama 100
Thermo Consulting & Design Inc. Delaware 100
Engineering Technology and Knowledge Corporation Delaware 100
Elson T. Killam Associates, Inc. New Jersey 100
BAC Killam Inc. New York 100
N.H. Bettigole Co., Inc. Delaware 100
CarlanKillam Construction Services, Inc. Florida 100
Duncan, Lagnese and Associates, Incorporated Pennsylvania 100
E3-Killam, Inc. New York 100
Killam Associates, Inc. Ohio 100
Killam Management and Operational Services, Inc. New Jersey 100
Fellows, Read & Associates, Inc. New Jersey 100
Killam Associates, New England Inc. Delaware 100
George A. Schock & Associates, Inc. New Jersey 100
Jennison Engineering, Inc. Vermont 100
Thermo Analytical Inc. Delaware 100
Skinner & Sherman, Inc. Massachusetts 100
Thermo EuroTech (Delaware) Inc. Delaware 87.70
(additionally, 10.79% of the shares are owned
directly by Thermo Electron Corporation)
Thermo EuroTech N.V. Netherlands
Grond- & Watersaneringstechniek Nederland B.V. Netherlands 100
Refining & Trading Holland B.V. Netherlands 100
Thermo EuroTech Ireland Ltd. Ireland 100
<PAGE>
NAME STATE OR PERCENT OF
JURISDICTION OF OWNERSHIP
INCORPORATION
------------------------------------------------------------------------------------------------------------
Green Sunrise Holdings Ltd. Ireland 70
AutoRod Ltd. Ireland 100
Green Sunrise Industries Ltd. Ireland 100
GreenStar Recycling Ltd. Ireland 100
Pipe & Drain Services Ltd. Ireland 100
Dempsey Drums Ltd. Ireland 70
GreenStar Products Ltd. Ireland 70
ThermoRetec Corporation Delaware 70
(additionally, 30% of the shares are owned
directly by Thermo Electron Corporation)
Benchmark Environmental Corporation New Mexico 100
Eberline Holdings Inc. Delaware 100
Eberline Analytical Corporation New Mexico 100
Thermo Hanford Inc. Delaware 100
TMA/NORCAL Inc. California 100
ThermoRetec Construction Corporation Virginia 100
ThermoRetec Resource Planning & Management Systems Corporation Connecticut 100
ThermoRetec Consulting Corporation Delaware 100
GeoWest Golden Inc. Colorado 100
GeoWest TriTechnics of Ohio, LLC Colorado 100
Retec North Carolina, Inc. North Carolina 100
Retec Engineering P.C. New York 100
RETEC Thermal, Inc. Delaware 100
Thermo Fluids Inc. Delaware 100
TPS Technologies Inc. Florida 100
TPST Soil Recyclers of California Inc. California 100
California Hydrocarbon, Inc. Nevada 100
TPST Soil Recyclers of Maryland Inc. Maryland 100
Todds Lane Limited Partnership Maryland 100*
(1% of which is owned directly
by TPS Technologies Inc.)
TPST Soil Recyclers of New York Inc. New York 100
TPST Soil Recyclers of Oregon Inc. Oregon 100
TPST Soil Recyclers of Washington Inc. Washington 100
TRI Oak Ridge Inc. Delaware 100
TRI Oak Ridge LLC Delaware 50
(additionally, 50% of the shares are owned
directly by Coleman Services Incorporated)
TRUtech L.L.C. Delaware 47.5*
*Joint Venture/Partnership
</TABLE>