Hopkins Geoffrey David

Huemer Franz-Xaver

Hurkmans Petrus Lambertus Wilhelmus

Huttemann Andreas

Infrastructure Repair Systems, Inc.

Insituform (Netherland) B.V.

Insituform (Netherlands) N.V.

Insituform Licensees B.V.

Insta-Pipe Research Limited Partnership

Instituform (Netherlands) B.V.

Instituform B.V.

International Pipeline, Inc.

Interprovincial Pipe Line, Inc.

Interprovincial Pipeline Company

Ipex Inc.

Iwasaki-Higbee Jeffrey L.

J. R. Pipeline Co., Inc.

J.R. Pipeline Co., Inc.

Jarvinen Seppo

Johnson Donald Wade