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Contact Us:
Kate DeCramer
206-254-5359
kate.decramer@wshfc.org 

Sustainable Energy Program

       

APPROVED ROSTER OF ENERGY MODELING CONSULTANTS

The following providers have met the requirements of the Request for Qualifications: Energy Modeling Consultants. Inclusion on this list is not an endorsement by the Commission. Unless otherwise noted, all respondents have been approved to provide the following services:

1. Utility Allowance Calculations for New Construction
2. Utility Allowance Calculations for Retrofit/Rehabilitation of Existing Buildings
3. Energy Efficiency Calculations for New Construction
4. Utility Savings Calculations for Retrofit/Rehabilitation of Existing Buildings

To be added to this list, see Request for Qualifications: Energy Modeling Consultants.

Akiyama Architecture, LLC
4115 Bridgeport Way W., Suite D, University Place, WA 98466
Contact: Paul Akiyama | Paul@AkiyamaArchitecture.com
Phone: 253-303-2911
www.AkiyamaArchitecture.com

Alan Plummer Associates, Inc.
6300 La Calma Drive, Suite 400, Austin, TX 78752
Contact: Rex Hunt | rhunt@apaienv.com 
Phone: 512-687-2155
www.apaienv.com

Balderston Associates, LLC
314 First Ave S, Seattle, WA 98104
Contact: Helen Biersack | Helen@balderstonassociates.com
Phone: 425-243-7290 or 206-446-8186

B.E.E. Consulting, LLC
170 W. Dayton Street, Suite 206, Edmonds, WA 98020
Contact: Telman Gasanov | telman@bee-engineers.com
Phone: 425-672-3900
www.bee-engineers.com

Ecotope
1917 First Avenue, Suite 300, Seattle, WA 98101
Contact: Jonathan Heller | Jonathan@ecotope.com
Phone: 206-596-4704
www.ecotope.com

FSi Consulting Engineers
506 Second Ave, Suite 700, Seattle, WA 98104
Contact: Ben Roush | benr@fsi-engineers.com
Phone: 206-622-3321
fsi-engineers.com

Glumac
1601 Fifth Ave., Suite 2210, Seattle, WA 98101
Contact: Max Wilson
Phone: 206-262-1010
www.glumac.com

Hedgerow Partners, LLC
11010 Brent Road, Potomac, MD 20854
Contact: Walter Mendoza | wrmendoza@thehedgerowgroup.com
Phone: 301-706-3321
www.hedgerowgroup.com

Hultz BHU Engineers
1111 Fawcett Avenue, Suite 100, Tacoma, WA 98402
Contact: Rick Hultz | rickh@hultzbhu.com
Phone: 253-383-3257
www.hultzbhu.com

Interface Engineering
801 Second Ave., Suite 200, Seattle, WA 98104
Contact: Andy Frichtl | andyf@interfaceeng.com 
Phone: 503-382-2667
www.interfaceengineering.com

Keel Energy
3954 N. Castle Ave., Portland, OR 97227
Contact: Erin Connor | erin@keelenergy.com
Phone: (360) 305-1803

Nova Group, GBC
63 Federal Street, Portland, ME 04101
Contact: Margo Billings | Margo.billings@novagroupgpc.cpm 
Phone: 207-939-4983
www.novagroupgbc.com

O'Brien360
710 Second Avenue, Suite 925, Seattle, WA 98104
Contact: David Reddy | david@obrien360.com 
Phone: 206-621-8626 ext. 201
www.obrien360.com

Partner Energy
680 Knox St., Suite 150, Los Angeles, CA 90502
Contact: Kelsey Shaw | kshaw@ptrenergy.com
Phone: 310-356-2199
www.ptrenergy.com

RDH Building Science Inc.
2101 N 34th Street #150, Seattle, WA 98103
Contact: Ellen Klein | eklein@rdh.com
Phone: 206-324-2272

Rushing
1725 Westlake Ave., Suite 300, Seattle, WA 98109
Contact: Rae Anne Rushing | raeanner@rushingco.com
Phone: 206-285-7112
www.rushingco.com

Solarc Energy Group, LLC
713 St Helens Ave, Suite 104, Tacoma, WA 98402
Contact: Eric Knowles | erick@solarcenergygroup.com
Phone: 206-395-4743
www.solarcenergygroup.com

Tres West Engineers, Inc.
2702 South 42nd St., Suite 301., Tacoma, WA 98409
Phone: 253-472-3300
http://www.treswest.com/

WSP Parsons Brinkerhoff
600 University St., Suite 500, Seattle, WA 98101
Contact: Tom Marseille | tom.marseille@wspgroup.com
Phone: 206-342-9900
www.pbworld.com

Willdan
3302 Cedardale Road, Suite D500, Mt. Vernon, WA 98274
Contact: Gunnar Brent | gbrent@willdan.com
Phone: 206-530-0079
www.willdan.com/

Zappling
969 2nd St SE, Charlottesville VA 22902
Contact: Nyshaya Elliott | Nyshaya@zappling.com
Telephone: 434-885-0953
http://www.zappling.com

ZBA Architecture
421 W. Riverside Ave., Suite 8060, Spokane, WA 99201
Contact: Mark King | king@zbaarchitecture.com
Phone: 509-456-8236
www.zbaarchitecture.com 

Zeffert & Associates*
12101 Woodcrest Executive Drive Suite 180, Saint Louis, Missouri 63141
Contact: Martha McBroom | mmcbroom@zeffert.com 
Phone: (800)820-4079
https://www.zeffert.com 
*Approved for Utility Allowance calculations (Services A and B), using Method 6–Actual Usage Estimate and Method 7–HUD Utility Schedule Model only.