CTA Architects
CTA Architects, D.P.C. is a New York City mid-sized architectural firm providing historic preservation, adaptive reuse, sustainable/Passive House design, and storm-resiliency services to public agencies (NYC SCA, DDC, BPCA) and private/nonprofit clients in the NYC metro area. It is the first Architecture B Corporation in New York State.
- Company typePrivate
- Founded1993
- HeadquartersNew York, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What CTA Architects does
CTA Architects, D.P.C. is a privately held, mid-sized architectural firm headquartered at 151 W. 26th Street in New York City that has been operating in the metropolitan area for over thirty years (incorporated 1993; firmographic founding date 1987). The firm provides five core service lines: new design, historic preservation, adaptive reuse, building restoration and rehabilitation, and Passive House / green building design, supplemented by a climate-resiliency design capability developed through post-Hurricane Sandy work on affordable housing complexes. Its technical differentiators include deep expertise in Passive House Institute US (PHIUS) standards, with executed projects achieving PHIUS+ 2018, DOE Zero Energy Ready Home, and ENERGY STAR certifications, and a Carbon Cure concrete specification partnership with Glenwood Mason Supply Company for low-carbon construction materials.
The firm serves a dual public/private client base. Public sector clients include the NYC School Construction Authority, NYC Department of Design & Construction, Battery Park City Authority, and the Office of General Services. Private and nonprofit clients include cultural institutions such as Wave Hill and affordable housing entities such as Haven Plaza Housing Development Fund Company. CTA operates on a professional-services, project-by-project fee model with custom pricing — no standardized tiers are publicly disclosed. New business is acquired through direct client engagement, competitive bidding on public sector work, and reputation supported by an active industry-award cadence (SARA National Design Awards, Lucy G. Moses Preservation Awards, DOE Housing Innovation Award) and a B Corporation certification (the first Architecture B Corporation in New York State). CTA's go-to-market is sales-led with marketing primarily executed through its website, Instagram, LinkedIn, and a weekly sustainability newsletter. The firm is independently owned with no parent company, no disclosed external funding, and no subsidiaries. Headcount is reported in the 11–50 employee range, and Daniel J. Allen is identified as a principal.
CTA Architects firmographics
Firmographics- Name
- CTA Architects
- Legal name
- CTA Architects, D.P.C.
- Website
- https://ctaarchitects.com
- Company type
- Private
- Founded year
- 1993
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- CTA Architects, D.P.C. is a New York City mid-sized architectural firm providing historic preservation, adaptive reuse, sustainable/Passive House design, and storm-resiliency services to public agencies (NYC SCA, DDC, BPCA) and private/nonprofit clients in the NYC metro area. It is the first Architecture B Corporation in New York State.
- Ownership category
- akta.pro rank
CTA Architects industry classification
Industry- Product category
- Architectural Services
- NAICS
- Architectural Services (54131), Architectural Services (541310)
- akta.pro primary industry
- Architectural Design Services (BPAHAKAA)
- akta.pro secondary industries
- Historic Home Renovation & Preservation (HSAPAEAG), Specialty Education Facilities Construction (Labs, STEM, CTE Shops, Arts, Athletics) (EDAEABAI)
Keywords
Where CTA Architects is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
CTA Architects business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel
Revenue model
- Architectural Services: Professional fees for architectural design, historic preservation, and restoration services on a project-by-project basis. Projects range from small-scale restorations to large complex rehabilitations.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels5 records
CTA Architects product offering
Product offeringCore offering
CTA Architects is a New York City-based mid-sized architectural firm that provides professional design, historic preservation, adaptive reuse, building restoration, and sustainable design services. Its practice is distinguished by specialized expertise in Passive House construction, LPC-regulated historic preservation, and storm resiliency, with project delivery for both public sector agencies and private clients across the New York metropolitan area. The firm is also notable as the first Architecture B Corporation certified in New York State.
Product overview
CTA Architects, D.P.C. is a mid-sized architectural firm headquartered in New York City providing comprehensive architectural services for over thirty years. The firm operates as a single integrated practice offering five core service lines: New Design, Historic Preservation, Adaptive Reuse, Building Restoration and Rehabilitation, and Passive House Design. The firm specializes in sustainable and environmentally-responsible architecture, with specific expertise in Passive House standards, Green Building design, and storm resiliency. CTA is B-Corp certified as the first Architecture B Corporation in New York State, demonstrating commitment to triple bottom line principles (people, planet, and profit). Projects span residential, institutional, government, cultural, and educational sectors throughout the New York metropolitan area.
Differentiator
Problem solved
Functional benefit
Products and services
- Historic Preservation Services Specialized architectural services for the restoration and preservation of historic buildings, including masonry repair, terra cotta restoration, window replacement, and façade rehabilitation. CTA has completed over 100 historic preservation projects in the New York metro area, serving institutional, government, and private property owners.
- New Design New building design services with expertise in sustainable and contemporary architecture, including new residential, commercial, and institutional construction projects for private developers and public agencies.
- Adaptive Reuse Transformation of existing structures for new uses, including conversion of historic buildings into modern residential, commercial, or cultural spaces while preserving architectural character.
- Building Restoration and Rehabilitation Comprehensive restoration and rehabilitation services for existing buildings, including structural repairs, waterproofing, roofing replacement, and interior renovations for residential complexes and institutional buildings.
- Passive House Design Energy-efficient building design meeting Passive House Institute US (PHIUS) standards, emphasizing airtightness, superior insulation, and mechanical ventilation with heat recovery for minimal energy consumption. The 211 Warren Street project achieved PHIUS+ 2018 Certification and a HERS Index score of 3.
- Green Building Design Sustainable design services incorporating environmentally friendly strategies, energy efficiency, and environmentally conscious solutions that reduce ecological impact, with LEED expertise applied to projects.
- Storm Resiliency Design Design services focused on protecting buildings from storm damage and flooding, including elevation of critical systems and infrastructure improvements for climate resilience. Delivered for housing developments and public infrastructure.
Quantifiable outcome
- PHIUS+ 2018 Certification achieved for Hudson Passive House project
- +2 more outcomes
Companies that use CTA Architects
Customer profileNamed customers6 records
Segments3 records
Ideal customer profiles2 records
CTA Architects technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
CTA Architects partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Glenwood Mason Supply CompanycoreStrategic partnership for sustainable construction materials. Glenwood uses Carbon Cure technology to inject captured CO2 into concrete masonry units, which mineralizes and permanently removes emissions. CTA specifies Green CMU blocks in their projects, supporting their sustainability goals.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
CTA Architects competitors and assessment
Company assessmentDirect peers
- Beyer Blinder Belle: NYC-headquartered architecture firm specializing in historic preservation, adaptive reuse, and civic/institutional projects. Direct competitor for NYC Landmarks Preservation Commission work and public sector clients like DDC and SCA, with a similarly long-tenured local practice.
- WASA Studio: Mid-sized NYC architecture firm with a strong preservation, adaptive reuse, and civic-design portfolio. Comparable to CTA in scale, mission-driven positioning, and pursuit of public sector cultural and educational commissions.
- FXCollaborative: NYC-headquartered architecture and planning firm with a portfolio spanning civic, cultural, educational, and adaptive reuse projects. Comparable on NYC institutional clients and sustainability commitments, though at materially larger scale.
- Selldorf Architects: NYC-based architecture practice with a portfolio spanning adaptive reuse, cultural institutions, and residential work. Comparable to CTA on client profile (cultural institutions, private developers) and NYC metro presence.
- Page (formerly Davis Brody Bond): National architecture firm with deep NYC presence and a strong historic preservation portfolio (e.g., Ellis Island, Penn Station renovation proposals). Comparable to CTA on civic landmark work and institutional client base.
Broad incumbents
- HOK: Global architecture and engineering firm with major NYC practice covering civic, cultural, educational, and commercial sectors. Overlaps with CTA on institutional clients and sustainability goals but at enterprise scale with broader capabilities.
- Perkins&Will: Global architecture firm with deep sustainable-design credentials (LEED, WELL, PHIUS) and significant NYC presence. Competes with CTA on sustainability-driven institutional work but at much larger scale and broader portfolio.
Emerging players
- Building Conservation Associates: NYC-based preservation consulting firm serving architects, building owners, and institutions on historic preservation and conservation planning. Comparable niche focus on the regulatory and technical aspects of preservation that complement CTA's design practice.
- Wiss, Janney, Elstner Associates: Engineering and architecture firm specializing in building forensics, structural restoration, and preservation consulting. Comparable to CTA on the historic preservation client base and the diagnostic/investigation phase of restoration work.
Others
- John Canning & Co. National historic restoration contractor specializing in decorative finishes, plasterwork, and ornamental conservation. Acts as an execution partner/fellow ecosystem participant for projects like CTA's terra cotta and cast iron restoration work.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
CTA Architects social profiles
Digital presenceCTA Architects compliance and trust
Trust signalCompliance6 records
CTA Architects financial estimates
Financial estimateRevenue estimate
Valuation estimate
CTA Architects leadership team
Management profileNumber of profiles
Profiles1 record
CTA Architects funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
CTA Architects 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 CTA Architects
What does CTA Architects do?
CTA Architects is a New York City-based mid-sized architectural firm that provides professional design, historic preservation, adaptive reuse, building restoration, and sustainable design services. Its practice is distinguished by specialized expertise in Passive House construction, LPC-regulated historic preservation, and storm resiliency, with project delivery for both public sector agencies and private clients across the New York metropolitan area. The firm is also notable as the first Architecture B Corporation certified in New York State.
Is CTA Architects a public or private company?
CTA Architects is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was CTA Architects founded?
CTA Architects was founded in 1993. It employs 11 to 50 people.
Where is CTA Architects based?
CTA Architects is headquartered in New York, United States, in the North America region.
How does CTA Architects make money?
One revenue line is on record: architectural Services.
Who are CTA Architects's main competitors?
Direct peers on record are Beyer Blinder Belle, WASA Studio, FXCollaborative, Selldorf Architects and Page (formerly Davis Brody Bond). Broad incumbents are HOK and Perkins&Will. Emerging players are Building Conservation Associates and Wiss, Janney, Elstner Associates. John Canning & Co. is listed as an others.
Does CTA Architects have an API?
No public API is recorded for CTA Architects.
What industry is CTA Architects in?
CTA Architects's product category is Architectural Services. Its primary akta.pro industry code is BPAHAKAA, Architectural Design Services, with a secondary code of HSAPAEAG, Historic Home Renovation & Preservation. Its NAICS code is 54131.