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Find a PHIUS+ Verifier

The release of the climate-specific, cost-optimized PHIUS+ 2015 Passive Building Standard in March of 2015 by Passive House Institute US (PHIUS) ignited the tremendous growth of passive building from coast to coast, with the most significant gains occurring in the multifamily housing (affordable and market rate) and commercial building sectors. PHIUS+ Certified and Pre-Certified projects now total more than 1 million square feet across 1,200 units nationwide.

PHIUS+ Verifiers perform third-party Quality Assurance and onsite verification for multifamily and commercial passive building projects pursuing PHIUS+ Certification. Verifiers are well versed in the specific requirements of the PHIUS+ Multifamily Certification Standard v2.0 for performance and on-site verification of multifamily buildings pursuing certification under the PHIUS+ program.

PHIUS+ Verifiers are equipped with the skills necessary to achieve:

  • Large building enclosure integrity design strategies.
  • Passive building mechanical/ventilation systems.
  • On-site verification of passive building construction features.
  • Large building/multi-fan blower door testing protocols.

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California

  • Basaltic, Inc.

    PHIUS+ Rater | Verifier

    2615 MacArthur Blvd
    Oakland, California 94602
    • John Tao #2582
  • Healthy Buildings International, Inc.

    CPHC | PHIUS+ Rater | Verifier

    25381 Commercentre Drive
    Suite 150
    Lake Forest, California 92630
    • Larry Eichel #2543

Connecticut

  • Nicole Burger

    CPHC | Verifier

    13 Buell Hill Road
    Killingworth, Connecticut 06419
    • Nicole Burger #2439
  • Steven Winter Associates, Inc.

    PHIUS+ Rater | Verifier

    61 Washington Street
    Norwalk, Connecticut 06854
    • Karla Butterfield #1814
    • James Fera #2875

District of Columbia

  • Steven Winter Associates

    Verifier

    1825 Connecticut Ave
    Suite 600
    Washington DC, District of Columbia 20009
    • Chris Wisniewski #2886

Illinois

  • Eco Achievers

    CPHC | PHIUS+ Rater | Verifier

    1647 W Fulton St
    Chicago, Illinois 60612
    • Lindsey Elton #2026
    • Graham Giovagnoli #2680
    • Emily Rhea #2623
  • US-Ecologic

    Verifier

    3724 N Sheffield Ave
    3N
    Chicago, Illinois 60613
    • Elias Doulgerakis #2874

Kentucky

  • Horton Brothers Consulting

    CPHC | PHIUS Certified Builder | PHIUS+ Rater | Verifier

    266 Deverill Street
    Ludlow, Kentucky 41016
    • David Horton #1548

Maryland

  • Jay Hall & Associates, Inc.

    Verifier

    610 Beach Drive
    Annapolis, Maryland 21403
    • Jay Hall #2876
  • New Ecology, Inc.

    Verifier

    429 N Eutaw St
    Suite 2S
    Baltimore, Maryland 21201
    • Justin Iovenitti #2877
  • Pando Alliance

    Verifier

    3525-K Ellicott Mills Drive
    Ellicott City, Maryland 21043
    • Duane (DJ) Soriano #2879
  • US-EcoLogic

    Verifier

    5007 Barkwood Pl
    Rockville, Maryland 20853
    • Marie Nisson #2885

Massachusetts

  • A9 Green / Total Green Energy Solution, LLC

    PHIUS+ Rater | Verifier

    329 Massachusetts Ave
    Suite 3
    Lexington, Massachusetts 02420
    • Bijan KHosraviani #2898
  • Advanced Building Analysis, LLC

    PHIUS+ Rater | Verifier

    2 Woodlawn Street
    Amesbury, Massachusetts 01913
    • Michael Browne #1786
  • Center for EcoTechnology

    CPHC | PHIUS+ Rater | Verifier

    320 Riverside Dr
    Unit 1A
    Northampton, Massachusetts 01062
    • Mark Newey #2880
    • John Saveson #2590
    • Matt Zarotny #2576
  • CLEAResult

    Verifier | CPHC

    50 Washington Street
    Westborough, Massachusetts 01581
    • Nicholas Abreu #2701
    • Jeremy Dagold #2270
    • Keunta Epps #2901
    • Sandra Garcia-Fine #2897
    • Jonathan Harrison #2904
    • Ann John #2900
    • Ramcharan Khalsa #2899
    • Mike Schofield #2905
    • Benjamin Todd #2928
  • GDS Associates, Inc

    PHIUS+ Rater | Verifier

    Norfolk, Massachusetts 02056
    • Melanie Russell #2895
  • HIS & HERS Energy Efficiency

    PHIUS+ Rater | Verifier

    12 Perkins Ave.
    Northampton, Massachusetts 01060
    • Adin Maynard #2255
  • New Ecology, Inc.

    Verifier

    15 Court Square
    Suite 420
    Boston, Massachusetts 02108
    • Zach McDonald #2878
  • Simpson Gumpertz & Heger Inc.

    Verifier

    41 Seyon Street
    BLDG 1 Suite 500
    Waltham, Massachusetts 02453
    • Gert Guldentops #2556
  • Sustainable Comfort

    CPHC | PHIUS+ Rater | Verifier

    146 Main Street
    Suite 301
    Worcester, Massachusetts 01608
    • James Moriarty #1895
  • Sustainable Comfort, Inc.

    Verifier

    163 Fairbank Rd
    Sudbury, Massachusetts 01776
    • Greg Downing #2577

Michigan

  • Building Efficiency Resources

    PHIUS+ Rater | Verifier

    Detroit, Michigan 48221
    • Chris McTaggart #1829

Minnesota

  • Center for Energy and Environment

    Verifier

    1754 University Ave W
    St. Paul, Minnesota 55104
    • Jacob Selstad #2628

Nebraska

  • Transduction Technologies

    PHIUS+ Rater | Verifier

    "5005 Chicago St. "
    Omaha, Nebraska 68132
    • David Holtzclaw #1826

New Hampshire

  • GDS Associates, Inc.

    Verifier

    1155 Elm Street, Suite 702
    Manchester, New Hampshire 03101
    • Joe Rando #2272

New Jersey

  • EAM Associates

    PHIUS+ Rater | Verifier

    3350 Highway 138 W, Bldg 2, Suite 223
    Wall, New Jersey 07719
    • Dillon Swol #2671
  • Kitchen & Associates

    CPHC | Verifier

    756 Haddon Ave
    Collingswood, New Jersey 08108
    • Michael Campbell #2313

New York

  • Altanova

    Verifier

    11-05 44th Drive
    11-05 44th Drive, New York 11101
    • Jamison Hill #2903
  • Association for Energy Affordability

    PHIUS+ Rater | Verifier

    105 Bruckner Blvd.
    Bronx, New York 10454
    • Edward Ntalo #1897
  • Bright Power

    Verifier | CPHC

    11 Hanover Sq
    New York, New York 10005
    • Luis Aragon #2545
    • Tyler Davis #2025
    • Edward Leykam #2548
  • Camroden & Assoc.

    Verifier

    7240 E. Carter Rd.
    Westmoreland, New York 13490
    • Terry Brennan #2133
  • Energy Master LI Building Consultants

    PHIUS+ Rater | Verifier

    358 Ridgefield Rd.
    Hauppauge, New York 11788
    • Rich Manning #2515
  • Integral Building & Design

    CPHC | PHIUS+ Rater | Verifier

    15 N. Mill Street
    Suite 218
    Nyack, New York 10960
    • Tony Lisanti #1828
  • Russell Company

    CPHC | PHIUS Certified Builder | Verifier

    PO Box 2432
    Poughkeepsie, New York 12603
    • Russell Ley #1996
  • Spruce Mountain

    CPHC | PHIUS Certified Builder | PHIUS+ Rater | Verifier

    832 South Rd
    Wurtsboro, New York 12790
    • Troy Hodas #1880
  • Steven Winter Associates, Inc.

    Verifier

    307 Seventh Avenue
    Suite 1701
    New York, New York 10001
    • Michael O'Donnell #2546
    • Katie Schwamb #2152
  • The Levy Partnership, Inc

    Verifier

    1776 Broadway
    Suite 1250
    New York, New York 10019
    • Tristan Grant #2896
  • The Levy Partnership, Inc.

    Verifier

    1776 Broadway
    Suite 1250
    New York, New York 10019
    • Jordan Dentz #2199
  • TRC

    Verifier

    1430 Broadway, 10th Floor
    New York, New York 10018
    • Gwen McLaughlin #2226
  • WSP

    Verifier

    163 w 23rd st
    4th Fl
    new york, New York 10011
    • Gaspar Cabrera #2244

North Carolina

  • Building Efficiency Resources

    Verifier

    159 W Main St #1769
    Brevard, North Carolina 28712
    • Sara DeVico #2873

Nova Scotia

  • Efficiency One

    CPHC | Verifier

    230 Brownlow Ave
    Suite 300
    Dartmouth, Nova Scotia B3B 0G5
    • Natasha Brooks #2215

Ontario

  • RDH Building Science

    Verifier

    26 Soho Street
    #350
    Toronto, Ontario M5T 1Z7
    • Kathleen Narbonne #2804
  • Zon Engineering Inc.

    CPHC | Verifier

    465 Pinebush Rd.
    Unit 5
    Cambridge, Ontario N1T 2J4
    • Greg Leskien #2580

Oregon

  • Earth Advantage

    CPHC | PHIUS+ Rater | Verifier

    623 SW Oak St Suite 300
    Portland, Oregon 97205
    • Ryan Shanahan #1286
  • TRC

    Verifier

    4105 SE International Way
    Suite 505
    Milwaukie, Oregon 97222
    • Shelley Beaulieu #2140

Pennsylvania

  • Building Performance Architecture

    PHIUS+ Rater | Verifier

    2121 Noblestown Road
    Suite 222
    Pittsburgh, Pennsylvania 15205
    • Rob Hosken #1881
  • Innova Services Corporation

    Verifier

    1548 S. 16th Street
    Philadelphia, Pennsylvania 19146
    • Bruce Thompson #2141
  • Pennsylvania Housing Finance Agency

    CPHC | Verifier

    211 North Front Street
    Harrisburg, Pennsylvania 17101
    • Kristy Provost #2067
  • Re:Vision Architecture

    Verifier

    133 Grape Street
    Philadelphia, Pennsylvania 19127
    • Nicholas Semon #2202
  • Steven Winter Associates

    CPHC | PHIUS+ Rater | Verifier

    130 W LEMON ST
    LITITZ, Pennsylvania 17543
    • Scott Pusey #1832
  • West Penn Energy Solutions

    PHIUS+ Rater | Verifier

    1121 Savannah Ave
    Pittsburgh, Pennsylvania 15218
    • Michael Merck #1884

Rhode Island

  • Clearesult

    CPHC | Verifier

    128 Woodville Rd
    Hope Valley, Rhode Island 02832
    • Jon Erickson #2770
  • CLEAResult

    Verifier

    5 Divison St
    East Greenwich, Rhode Island 02818
    • Wade Ryan #2911

Virginia

  • Conway Energy

    CPHC | PHIUS+ Rater | Verifier

    3520 Rose Ln
    Annandale, Virginia 22003
    • Christopher Conway #1355
  • John Semmelhack

    CPHC | PHIUS+ Rater | Verifier

    1515 Chesapeake Street
    Charlottesville, Virginia 22902
    • John Semmelhack #1149
  • Viridiant

    Verifier

    1431 W Main Street
    Richmond, Virginia 23220
    • Bill Riggs #2902

Washington

  • Evergreen Certified

    Verifier

    502 Rainier Ave S
    Suite 206
    Seattle, Washington 98144
    • Jackson Murphy #2819
  • Evergreen Certified, LLC

    Verifier | PHIUS+ Rater

    502 Rainier Ave S
    Suite 206
    Seattle, Washington 98144
    • Lisa Henry #2800
    • Greta Tjeltveit #2595
    • Cybil Tribe #2807
  • O'Brien360

    Verifier

    710 2nd Ave
    Suite 925
    Seattle, Washington 98104
    • Chris Edlin #2295
  • RDH Building Science

    Verifier

    2101 N 34th Street
    #150
    Seattle, Washington 98103
    • Diego Guimet #2799
  • RDH Building Science Inc.

    Verifier

    2101 N 34th Street
    #150
    Seattle, Washington 98103
    • Maria Rumeo #2820

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