LTL Architects
LTL Architects is a New York-based architecture firm founded in 1997 that designs cultural, educational, and commercial buildings with a focus on biogenic materials and sustainable design, and publishes architectural reference books and licenses product designs.
- Company typePrivate
- Founded1997
- HeadquartersNew York, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What LTL Architects does
LTL Architects is a New York-based architecture firm founded in 1997 by principals Paul Lewis, Marc Tsurumaki, and David J. Lewis. The firm provides custom architectural design services for higher education institutions, cultural organizations, public agencies, and select commercial clients, with a portfolio spanning new construction, renovation, adaptive reuse, and interior architecture. Core specializations include biogenic and earth-based materials (wood frame, mass timber, bamboo, straw, hemp, cork, earth, brick, stone, and reuse), section-based design analysis, and climate-resilient strategies, evidenced by outcomes such as the Cornell University Upson Hall renovation (160,000 SF, LEED Platinum, 66.62% modeled energy cost reduction).
Beyond project work, the firm has built a parallel research-and-publishing program. It has authored three influential architectural reference books — Manual of Section (2016, translated into 6 languages), Manual of Physical Distancing (2020), and Manual of Biogenic House Sections (2022/2023, 352 pages covering 55 houses) — which are sold globally through Amazon, Bookshop, and ORO Editions. The firm also licenses product designs, including the Parallel Lines wallcovering collection for Knoll Textiles (Vector, Margin, Perimeter patterns) and the Rotare Light fixture for Ivalo Lighting. Distribution of these products is via manufacturing partners.
The business model rests on three revenue streams: (1) professional architectural services billed as custom project engagements, (2) book royalties and direct sales through publishers and retailers, and (3) product design licensing royalties from manufacturers. Go-to-market is non-traditional: the firm does not advertise or run a sales operation; instead, principals teach at Columbia GSAPP and Parsons, lecture internationally, exhibit work at traveling shows and venues like Storefront for Art and Architecture, and compete in design competitions. The firm is privately held by its three founders, with 11–50 employees operating from a single office at 11 Broadway, Suite 1504, New York. Customer segments are split primarily between higher education and cultural institutions, with secondary exposure to public/government work (libraries, design excellence programs) and commercial clients.
LTL Architects firmographics
Firmographics- Name
- LTL Architects
- Legal name
- LTL Architects
- Website
- https://ltlarchitects.com
- Company type
- Private
- Founded year
- 1997
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- LTL Architects is a New York-based architecture firm founded in 1997 that designs cultural, educational, and commercial buildings with a focus on biogenic materials and sustainable design, and publishes architectural reference books and licenses product designs.
- Ownership category
- akta.pro rank
LTL Architects industry classification
Industry- Product category
- Architectural Design Services
- NAICS
- Architectural Services (541310), Interior Design Services (541410)
- SIC
- Services-Engineering Services (8711)
- akta.pro primary industry
- Architectural Design Services (BPAHAKAA)
- akta.pro secondary industry
- Interior Design Services (BPAHAKAB)
Keywords
Where LTL Architects is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
LTL Architects business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D
Revenue model
- Architectural Design Services: Traditional architectural services including new construction, renovation, adaptive reuse, and interior architecture for educational, cultural, commercial, and residential projects.
- Publications and Books: Revenue from publishing architectural books and manuals including Manual of Section, Manual of Biogenic House Sections, and Manual of Physical Distancing, sold through retailers like Amazon, Bookshop, and ORO Editions.
- Product Design Licensing: Licensing agreements for designed products including Knoll wallcovering designs (Vector, Margin, Perimeter), Ivalo Rotare Light fixture, and other furniture/object designs.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | Manual of Biogenic House Sections book |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
LTL Architects product offering
Product offeringCore offering
LTL Architects provides custom architectural design services including new construction, renovation, adaptive reuse, and interior architecture for educational, cultural, commercial, and residential clients. The firm also generates ancillary revenue through published architectural reference books (such as Manual of Section and Manual of Biogenic House Sections) and licensed product designs including wallcoverings for Knoll Textiles and a pendant light fixture for Ivalo Lighting. The practice is distinguished by its specialization in biogenic and earth-based building materials, section-based design methodology, and climate-resilient design strategies that target embodied-carbon reduction.
Product overview
LTL Architects (Lewis.Tsurumaki.Lewis) is a New York-based architecture firm operating as a unified practice offering architectural design services, exhibitions, and publications. The firm's portfolio includes built architectural projects across education, cultural, commercial, residential, and installation sectors. Their products include design publications such as Manual of Biogenic House Sections and Manual of Section (books analyzing architectural section and biogenic materials), product designs like the Rotare Light for Ivalo Lighting and Parallel Lines wallcovering collection for Knoll Textiles, and traveling exhibitions including Biogenic House Sections Exhibition and Manual of Section Exhibition. The firm integrates research and publishing intrinsically with material development and design.
Differentiator
Problem solved
Functional benefit
Products and services
- Biogenic House Sections Exhibition Traveling exhibition showcasing the Manual of Biogenic House Sections book, building materials organized by embodied carbon, and five speculative biogenic house designs by LTL Architects; displayed at universities and cultural institutions globally.
- Rotare Light Custom 52-inch direct/indirect pendant lighting fixture designed for Ivalo Lighting, exploring ruled surface geometry with CATIA finite element analysis for metal forming, precision optics, and energy efficiency.
- Parallel Lines Wallcovering Collection Wallcovering collection for Knoll Textiles consisting of Vector, Margin, and Perimeter patterns, produced through digital repetition of scanned hand-drafted graphite lines exhibiting manual flaws and digital precision.
- Manual of Biogenic House Sections 352-page book presenting 55 innovative houses using biogenic materials (Wood Frame, Mass Timber, Bamboo, Straw, Hemp, Cork, Earth, Brick, Stone, Reuse) with detailed cross-sectional perspectives and carbon-sequestering analysis; published by ORO Editions.
- Five Biogenic Houses Speculative designs for five small houses using biogenic material assemblies as catalysts for building form, domestic organization, and spatial qualities, demonstrating the firm's design research with biogenic materials.
- Manual of Section Comprehensive architectural reference book analyzing the role of section in architecture through detailed drawings and projects, serving as a reference for understanding how the drawn section functions as a representational technique; published in multiple languages.
- Architectural Design Services Custom architectural design services including new construction, renovation, adaptive reuse, and interior architecture for educational, cultural, commercial, and residential projects; acquired through reputation, competitions, academic visibility, and referrals.
- Manual of Physical Distancing Visual publication assessing challenges of living during Covid-19, illustrating medical research and spatial recommendations tied to rates of virus spread; available as an evolving online document.
- Manual of Section Coloring Book Limited-edition companion to the Manual of Section featuring 30 single-sided pages of section drawing line work formatted for coloring.
Quantifiable outcome
- 66.62% modeled energy cost reduction achieved at Cornell Upson Hall
- +2 more outcomes
Companies that use LTL Architects
Customer profileNamed customers10 records
Segments4 records
Ideal customer profiles4 records
LTL Architects technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
LTL Architects partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and minor.
- Perkins+WillcoreJoint partnership on Cornell University Upson Hall project - LTL Architects collaborated with Perkins+Will, Thornton Tomasetti and ME Engineers on the 160,000 SF transformation of the engineering building.
- Thornton TomasetticoreEngineering collaboration on Cornell University Upson Hall project providing structural and MEP engineering services as part of the project team.
- ME EngineerscoreMechanical engineering partner on Cornell Upson Hall project contributing to LEED Platinum achievement and energy efficiency targets.
- Brooklyn Public LibrarycoreClient and partner on Brownsville Library Renovation and Expansion project, Department of Design and Construction project.
- SCAPE Landscape ArchitectureminorCollaboration on Helen R. Walton Children's Enrichment Center / Early Childhood Initiatives Center project in Northwest Arkansas.
- 475 High Performance Building SupplyminorMaterial donor for Biogenic House Sections Exhibition providing sustainable building materials for display.
- The Donghia Healthier Materials Library at Parsons School of Constructed EnvironmentsminorMaterial donations for Biogenic House Sections Exhibition supporting the display of healthier materials research.
- Storefront for Art and ArchitectureminorLong-term collaborative relationship including Marc Tsurumaki serving as President of Board of Directors. Firm has created multiple installations and exhibitions at Storefront.
Scale indicators7 records
Recent moves6 records
Expansion highlights5 records
LTL Architects competitors and assessment
Company assessmentBroad incumbents
- Snøhetta: Globally recognized architecture and design firm with strong cultural and educational portfolio and publicly visible sustainability practice. Comparable to LTL's biogenic materials positioning, though at materially larger scale.
- Adjaye Associates: International architecture firm with significant cultural and educational portfolio (Smithsonian National Museum of African American History). Comparable to LTL on cultural-institution focus and award-winning academic positioning.
Direct peers
- KieranTimberlake: Philadelphia-based architecture firm recognized for sustainable design research (including Cellulose-Based Building Materials research) and cultural/educational commissions. Strong overlap with LTL's biogenic materials and sustainability methodology.
- MOS Architects: Small New York-based architecture practice with academic ties and experimental cultural/educational work. Comparable to LTL in size, methodology-driven design ethos, and academic visibility.
- nARCHITECTS: Boutique Brooklyn-based architecture firm known for cultural, educational, and residential projects with a focus on sustainability. Comparable scale and New York base, with overlapping higher-education and cultural-institution clients.
- Steven Holl Architects: New York-based architecture firm known for cultural, educational, and sustainable design projects with academic leadership at Columbia GSAPP. Direct overlap with LTL on higher-education clients, sustainability focus, and academic engagement.
- Diller Scofidio + Renfro: New York-based interdisciplinary architecture firm founded around the same era, known for cultural and institutional projects (The Shed, The High Line). Directly comparable to LTL in scale, New York base, cultural-institution focus, and academic-pedigreed principals.
- Tod Williams Billie Tsien Architects: Boutique New York architecture firm of comparable size, specializing in cultural, educational, and institutional projects (Barnes Foundation, Obama Presidential Center). Closely aligned with LTL in practice size, mission-driven cultural work, and academic engagement.
- WORK Architecture Company: New York-based multidisciplinary firm with comparable headcount and cultural-institutional portfolio (MoMA PS1 Young Architects Program). Overlaps with LTL on small-scale cultural commissions and academic/research-oriented practice.
Emerging players
- SCAPE Landscape Architecture: New York-based landscape architecture and urban design firm. Listed because LTL has collaborated with SCAPE on the Helen R. Walton Children's Enrichment Center project — directly comparable as a New York–based design partner with overlapping institutional clients.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
LTL Architects social profiles
Digital presenceLTL Architects financial estimates
Financial estimateRevenue estimate
Valuation estimate
LTL Architects leadership team
Management profileNumber of profiles
Profiles4 records
LTL Architects funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
LTL 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 LTL Architects
What does LTL Architects do?
LTL Architects provides custom architectural design services including new construction, renovation, adaptive reuse, and interior architecture for educational, cultural, commercial, and residential clients. The firm also generates ancillary revenue through published architectural reference books (such as Manual of Section and Manual of Biogenic House Sections) and licensed product designs including wallcoverings for Knoll Textiles and a pendant light fixture for Ivalo Lighting. The practice is distinguished by its specialization in biogenic and earth-based building materials, section-based design methodology, and climate-resilient design strategies that target embodied-carbon reduction.
Is LTL Architects a public or private company?
LTL Architects is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was LTL Architects founded?
LTL Architects was founded in 1997. It employs 11 to 50 people.
Where is LTL Architects based?
LTL Architects is headquartered in New York, United States, in the North America region.
How does LTL Architects make money?
Three revenue lines are on record. Architectural Design Services are the primary driver. The others are publications and Books and product Design Licensing.
Who are LTL Architects's main competitors?
Broad incumbents on record are Snøhetta and Adjaye Associates. Direct peers are KieranTimberlake, MOS Architects, nARCHITECTS, Steven Holl Architects, Diller Scofidio + Renfro, Tod Williams Billie Tsien Architects and WORK Architecture Company. SCAPE Landscape Architecture is listed as an emerging player.
Does LTL Architects have an API?
No public API is recorded for LTL Architects.
What industry is LTL Architects in?
LTL Architects's product category is Architectural Design Services. Its primary akta.pro industry code is BPAHAKAA, Architectural Design Services, with a secondary code of BPAHAKAB, Interior Design Services. Its NAICS code is 541310 and its SIC code is 8711.