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Top 10 Architecture Firms: Northeast US

Ranked by recency-weighted eligible project count, 2021–2026, firms headquartered in the Northeast US (US Census Bureau regions; Canada listed separately). The 10 highest-scoring firms hold a numbered rank; 14 more firms with eligible activity are listed below the table.

Score = 1.0 per eligible project completed this year or last, 0.75 for 2–3 years ago, 0.5 for 4–5 years ago, +0.1 per independently-sourced project (capped at +0.5/firm). Eligible: status: completed projects with year_completed in the trailing 5 years. Ties broken by most recent status_verified date. See About for the full methodology.

Counts reflect the work this index has recorded, not a census of any firm's total output — coverage depth varies by firm — and a position here implies no judgment of design quality.

RankScore FirmHQEligible projects
110.5 Snøhetta Brooklyn, NY Theodore Roosevelt Presidential Library Exhibition Experience (2026), Hopkins Center for the Arts Renovation and Roth Wing (2025), Jack C. Taylor Music Center Expansion (2025), Blanton Museum of Art Grounds Redesign (2024), La Nube (2024), Far Rockaway Library (2024), Joslyn Art Museum Rhonda & Howard Hawks Pavilion (2024), Museum of Sex Miami (2024), Beijing City Library (Beijing Sub-Center Library) (2023), Musée National de la Marine Renovation (2023), Vesterheim Commons (2023), Ordrupgaard Museum Extension & Landscape (Himmelhaven) (2021), SUMMIT One Vanderbilt (2021)
27.2 Beyer Blinder Belle Architects & Planners New York, NY Entry Lobby, Ruth's Bookstore & David Berg Rare Book Room (2025), Renovation and Enhancement Project (2025), Michael C. Rockefeller Wing (2025), Buttenwieser Hall (2023), La MaMa First Floor Theatre Renovation (2023), NYPL Visitor Center (2023), Rubell Museum DC (2022), The Polonsky Exhibition of The New York Public Library's Treasures (2021), Stavros Niarchos Foundation Library (2021)
36.5 Ennead Architects New York, NY Tenaska Center for Arts Engagement (2026), Delacorte Theater Revitalization (2025), Jean & Ric Edelman Fossil Park & Museum of Rowan University (2025), Honickman Center (2024), Hopkins Bloomberg Center Donor Recognition & Wayfinding (2023), Steelhouse Omaha (2023), Sylvia H. Rambo Exhibit (2023)
44.8 CambridgeSeven Cambridge, MA Mote Science Education Aquarium (2025), Port Wonder — Children's Museum of Southwest Louisiana & LDWF Nature and Science Center (2025), Virginia Aquarium South Building and Vet Center (2024), Audubon Aquarium and Insectarium (2023), Broad Discovery Center (2022), Confluence of Cultures (2022)
54.2 MASS Design Group Boston, MA Unbound: Memorial to Enslaved Persons (2025), Champion's Walk at Corey Ingram Circle (2024), Snow Country Prison Japanese American Memorial (2024), The Embrace (2023), Cindy Broder Conservation Gallery (2022)
63.7 Diller Scofidio + Renfro New York, NY Sarofim Hall (2025), V&A East Storehouse (2025), Kravis Hall and David Geffen Hall (2022), Pier 57 Public Spaces (Sky Park, Food Hall, Chelsea View Theater) (2022), Prior Performing Arts Center (2022)
73.4 Foster + Partners New York, NY Zayed National Museum (2025), Datong Art Museum (2022), MOL Campus Visitor Centre & Observation Deck (2022), Narbo Via (2021), Alif — The Mobility Pavilion (2021)
83.2 Studio Joseph New York, NY Manhattan Pet Adoption Center (2024), This Is New York: 100 Years of the City in Art and Pop Culture (2023), Auditorium (2022), Music Hall (2022), Sensory Journey (2021)
92.8 Tod Williams Billie Tsien Architects New York, NY Obama Presidential Center Museum (2026), Digital Experience (2022), David Geffen Hall Renovation (2022), Garden Pavilion / Welcome Center (2022)
102.7 Pelli Clarke & Partners New Haven, CT Dassai Blue Sake Brewery (2023), Lola Mora Cultural Center (2023), Chengdu Museum of Natural History (2022), Luo Gang Concert Hall (2022)

Also active in this category

Firms with eligible activity in the window that fall outside the ranked table — fewer than 2 eligible projects, or a score below the top 10. Listed alphabetically, not ranked.

FirmHQEligible projects
Arrowstreet Boston, MA Hildreth Elementary School Environmental Graphics (2021)
Cooper Robertson New York, NY Princeton University Art Museum (2025)
Davis Brody Bond New York, NY Richard Gilder Center for Science, Education, and Innovation (2023), Perelman Performing Arts Center (PAC NYC) (2023)
EwingCole Philadelphia, PA Golden Anniversary Campus Transformation (2026), Ray and Dagmar Dolby Hall of American Culture — Entertainment Nation (2022), Native New York (2021)
FXCollaborative Brooklyn, NY Kravis Hall and David Geffen Hall (2022)
KieranTimberlake Philadelphia, PA Shakespeare Exhibition Hall (2024), Art and Ideals: President John F. Kennedy (2022)
Matter Practice Brooklyn, NY The Wall/El Muro: What Is a Border Wall? (2021)
Metcalfe Architecture & Design Philadelphia, PA First Amendment Gallery (2023)
Mills Whitaker Architects Arlington, MA Paul Revere Museum of Discovery and Innovation Exhibits (2026)
PBDW Architects New York, NY Palace Theatre Restoration (TSX Broadway) (2024), Powerhouse Arts — Brand Identity and Wayfinding (2023)
Rockwell Group New York, NY Hopkins Bloomberg Center Donor Recognition & Wayfinding (2023), Ticketed Waiting Room (2021)
Verner Johnson Boston, MA Space Race (2025)
Voorsanger Architects New York, NY The National WWII Museum — Road to Victory Master Plan (2023)
WHY Architecture New York, NY Michael C. Rockefeller Wing (2025), The Yoshimoto Pavilion (2025), Academy Museum of Motion Pictures (2021)