Percentage of

Subsidiary Capital

Stock Owned by the

Company

1.

Ecology & Environment Engineering, Inc.

(a Colorado corporation)

100%

2.

Gestión Ambiental Consultores S.A.

(a corporation formed under the laws of Chile)

52.48%

3.

ecology and environment do brasil Ltda.

(a limited liability partnership formed under the laws of Brazil)

72%

4.

Walsh Environmental, LLC

(a limited liability company formed under the laws of Colorado)

100%

5.

Gustavson Associates, LLC

(a limited liability company formed under the laws of Colorado)

83.6%  (a)

6.

Walsh Peru, S.A. Ingenieros y Cientificos Consultores

(a corporation formed under the laws of Peru)

74.78%  (a)

   (a)          Listed percentage owned by Walsh Environmental, LLC. (“Walsh”)