Contact
Send a message to Jacob & Hefner Associates, Inc.
Offices
Illinois Offices
Headquarters
Jacob & Hefner Associates, Inc.
1333 Butterfield Road, Suite 300
Downers Grove, IL 60515
630-652-4600
Chicago Office
Jacob & Hefner Associates, Inc.
125 S Clark St, Suite 1700
Chicago, IL 60603
630-652-4600
Illinois Management
William Bohne, PE
630-652-4621
bbohne@jhainc.com
Downers Grove, IL
Ryan Blocker, PE
630-652-4630
rblocker@jhainc.com
Downers Grove, IL
David Kulczycki, P.G.
630-652-4640
dkulczycki@jhainc.com
Downers Grove, IL
Irvine Office
JHA Environmental, Inc.
15375 Barranca Parkway, Suite J-101
Irvine, CA 92618
949-453-1045
Simi Valley Office
JHA Environmental, Inc.
4680 Los Angeles Avenue, Suite O
Simi Valley, CA 93063
949-453-1045
California Management
Ed Batlle
714-719-6852
ebatlle@jhainc.com
Irvine, CA
John Parkes
714-719-6873
jparkes@jhainc.com
Irvine, CA
Matthew Hillman
714-392-5970
mhillman@jhainc.com
Irvine, CA
Alex Mensen
amensen@jhainc.com
Irvine, CA
Seattle Office
JHA Environmental, Inc.
1420 U Court Northwest
Auburn, Washington 98001
P: 206-379-1651
Washington Management
Dallas Office
Jacob & Hefner Associates, Inc.
15110 N. Dallas Parkway, Suite 530
Dallas, TX 75248
P: 972-834-7316