Ellenzweig
Ellenzweig is a Boston-based architecture and laboratory planning firm that designs science, engineering, and health sciences facilities for more than 100 U.S. colleges, universities, medical schools, and research institutions, with a focus on flexible lab design and high-performance sustainability.
- Company typePrivate
- Founded1965
- HeadquartersBoston, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Ellenzweig does
Ellenzweig is a privately held U.S. architecture and laboratory planning firm founded in 1965 by Harry Ellenzweig, headquartered in Boston, with additional offices in Wells, Maine, and New York. The firm specializes in technically complex facilities for science, engineering, and health sciences, serving colleges, universities, medical schools, and research institutions; the visible client base spans more than 100 institutions, including Harvard, MIT, Yale, Michigan State, Rutgers, and the Woods Hole Oceanographic Institution. Service offerings cover the full architectural lifecycle: feasibility studies, master planning, programming, laboratory planning, architectural design, and construction administration, delivered through direct principal-led client engagement and secured via RFPs, competitions, and long-term relationships.
The firm's core technical capabilities center on laboratory flexibility and sustainability. Proprietary design features include the overhead service grid system for re-configurable lab benches and student tables, the pioneering all-glass fume hood that became an industry standard, and the largest installation of filtering fume hoods in the world (at Framingham State University). The firm also delivers high-performance sustainable design, with reported outcomes including a 77% reduction in projected energy use across the portfolio (AIA 2030 Commitment), 1,856 metric tons of CO2 sequestered through a mass-timber structure at Michigan State, and 79% lower pEUI than the national average at Massachusetts Maritime Academy. Underlying platforms and processes include BIM management, sustainability modeling, and collaborative design among 11-50 staff.
Ellenzweig operates as a professional services firm under an employee-ownership model established in 2004, with no outside investors or parent company disclosed. Revenue is generated through project-based architecture and design fees, primarily from higher education and medical/health sciences clients, with no publicly disclosed pricing tiers. Marketing is concentrated in organic social channels, a corporate news/blog presence, and earned media through industry awards. The firm holds numerous sustainability and design awards from bodies including AIA (state and national chapters), I2SL, U.S. WoodWorks, Forest Stewardship Council, the Associated General Contractors, and ENR, signaling a competitive positioning centered on technical complexity, laboratory flexibility, and environmental stewardship.
Ellenzweig firmographics
Firmographics- Name
- Ellenzweig
- Legal name
- Ellenzweig
- Website
- https://ellenzweig.com
- Company type
- Private
- Founded year
- 1965
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Ellenzweig is a Boston-based architecture and laboratory planning firm that designs science, engineering, and health sciences facilities for more than 100 U.S. colleges, universities, medical schools, and research institutions, with a focus on flexible lab design and high-performance sustainability.
- Ownership category
- akta.pro rank
Ellenzweig industry classification
Industry- Product category
- Architectural Design Services
- NAICS
- Architectural Services (541310), Architectural Services (54131), Architectural, Engineering, and Related Services (5413)
- SIC
- Services-Engineering, Accounting, Research, Management (8700)
- akta.pro primary industry
- Architectural Design Services (BPAHAKAA)
- akta.pro secondary industry
- Building Information Modeling (BIM) & Digital Design Services (BPAHAKAK)
Keywords
Where Ellenzweig is headquartered
LocationHeadquarters
- HQ city
- Boston
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Ellenzweig business model
Business model- GTM type
- B2B
- Offering type
- Services
Revenue model
- Architecture and Design Services: Ellenzweig generates revenue through professional architecture and design fees for planning and designing science, engineering, and health sciences facilities. Services include feasibility studies, master planning, programming, design, construction administration, and laboratory planning. Projects are primarily for higher education institutions, medical schools, and research organizations.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels6 records
Ellenzweig product offering
Product offeringCore offering
Ellenzweig is an architectural planning and design firm specializing in science, engineering, and health sciences facilities. Founded in 1965 and based in Boston, the firm provides professional architecture services including feasibility studies, master planning, programming, lab planning, architectural design, and construction administration for academic and institutional clients building complex research and teaching environments.
Product overview
Ellenzweig is an architecture firm that provides full architectural services for science, engineering, health sciences, and infrastructure facilities. Services include feasibility studies, master planning, programming, lab planning, architectural design, and construction administration. The firm does not offer discrete software products or modules; its offering is a service-based practice specializing in the design of technically complex research and teaching facilities for colleges, universities, and institutions.
Differentiator
Problem solved
Functional benefit
Products and services
- Architectural Design Services
Quantifiable outcome
- 77% reduction in projected energy use across project portfolio (AIA 2030 Commitment)
- +5 more outcomes
Companies that use Ellenzweig
Customer profileNamed customers15 records
Segments4 records
Ideal customer profiles1 record
Ellenzweig technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Ellenzweig partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered core.
- McCarty ArchitectscoreCollaborated with McCarty Architects as Architect of Record on University of Mississippi Duff Center for Science and Technology Innovation project.
- IDScoreIDS served as Architect of Record and Designer of Power Plant Renovation for Michigan State University STEM Complex project.
- Clarke Caton HintzcoreClarke Caton Hintz collaborated as Architect of Record on Rutgers University Ernest Mario School of Pharmacy Building Addition.
- WBRCcoreWBRC served as Architect of Record on University of Maine Ferland Engineering Education and Design Center project.
- Weber Murphy FoxcoreWeber Murphy Fox served as Architect of Record on Cuyahoga Community College STEM Center project.
- Vanderweil EngineerscorePartnered with Vanderweil Engineers on Yale Neuroscience Institute project for interconnected efficient lab design.
- Division of Capital Asset Management and Maintenance (DCAMM)coreDCAMM engaged Ellenzweig for programming, lab planning, design, and construction administration services for Massachusetts Maritime Academy project.
- OPNcoreOPN collaborated as architecture firm on Iowa State University Coover Hall expansion project.
- Freeman French FreemancoreFreeman French Freeman served as Architect of Record on University of Vermont Votey Hall Engineering Building Renovations.
- EOP ArchitectscoreEOP Architects collaborated as Architect of Record on University of Kentucky College of Pharmacy Biological Pharmaceutical Complex.
- GWWOcoreGWWO served as Architect of Record on Community College of Baltimore County Carol D. Eustis Center for Health Professions.
- URScoreURS collaborated on Michigan State University Secchia Center for Medical Education project.
Scale indicators5 records
Recent moves6 records
Expansion highlights5 records
Ellenzweig competitors and assessment
Company assessmentDirect peers
- Ballinger: Architecture and engineering firm with deep specialization in research, healthcare, and academic laboratory design for universities and medical schools — comparable in technical complexity and project scale.
- Flad Architects: Architecture firm with a focused science-and-technology and health-sciences practice delivering research facility and STEM-building design for universities and research institutions — a close direct peer.
- Payette: Boston-based architecture firm specializing in science, medical, and research facility design for academic and healthcare institutions — directly comparable in scale, geography, and laboratory-design focus.
- ZGF Architects: National architecture firm with a substantial research-and-laboratory practice that designs science and medical research buildings for universities and research institutions — comparable in project type and complexity.
- EwingCole: Design firm with a dedicated science-and-engineering and higher-education practice that plans and designs research and laboratory facilities for major universities — overlapping in target clients.
- SmithGroup: National architecture firm with a deep science, technology, and higher-education practice that designs research laboratories and medical facilities for universities and research institutions — a direct competitor for the same client base.
- Perkins&Will (Perkins Eastman): Global architecture practice with a large science-and-technology and higher-education studio delivering laboratory and research facility design for major universities — directly comparable client roster and project typology.
- CannonDesign: Integrated design firm with a prominent education and health-sciences practice that plans and designs STEM buildings and research facilities for top-tier universities and medical schools — overlapping in target clients and project types.
Broad incumbents
- HDR: Large global AEC firm with a dedicated science-and-research architecture practice serving universities, government, and research clients — a broader incumbent competing for the same institutional science projects.
- HOK: Global AEC firm with a higher-education and science-and-technology practice that designs research facilities and STEM buildings for major universities — a broad incumbent competitor for the same institutional projects.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Ellenzweig social profiles
Digital presenceEllenzweig compliance and trust
Trust signalCompliance28 records
Ellenzweig financial estimates
Financial estimateRevenue estimate
Valuation estimate
Ellenzweig leadership team
Management profileNumber of profiles
Profiles11 records
Ellenzweig funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Ellenzweig M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Ellenzweig
What does Ellenzweig do?
Ellenzweig is an architectural planning and design firm specializing in science, engineering, and health sciences facilities. Founded in 1965 and based in Boston, the firm provides professional architecture services including feasibility studies, master planning, programming, lab planning, architectural design, and construction administration for academic and institutional clients building complex research and teaching environments.
Is Ellenzweig a public or private company?
Ellenzweig is a private company. It is classified as management employee owned and is currently operating.
When was Ellenzweig founded?
Ellenzweig was founded in 1965. It employs 11 to 50 people.
Where is Ellenzweig based?
Ellenzweig is headquartered in Boston, United States, in the North America region.
How does Ellenzweig make money?
One revenue line is on record: architecture and Design Services.
Who are Ellenzweig's main competitors?
Direct peers on record are Ballinger, Flad Architects, Payette, ZGF Architects, EwingCole, SmithGroup, Perkins&Will (Perkins Eastman) and CannonDesign. Broad incumbents are HDR and HOK.
Does Ellenzweig have an API?
No public API is recorded for Ellenzweig.
What industry is Ellenzweig in?
Ellenzweig's product category is Architectural Design Services. Its primary akta.pro industry code is BPAHAKAA, Architectural Design Services, with a secondary code of BPAHAKAK, Building Information Modeling (BIM) & Digital Design Services. Its NAICS code is 541310 and its SIC code is 8700.