What Preservation Technology Llc does

Preservation Technology Associates, LLC is a small, woman-owned consulting firm founded in 1978 by Dr. Judy Selwyn, specializing in architectural conservation and historic building materials preservation. The firm operates from Chestnut Hill, Massachusetts, and delivers services primarily across the Northeast United States. Core offerings include masonry conservation (limestone, sandstone, granite, brownstone, slate), historic roof restoration and replacement (slate and copper), historic metals restoration, scientific paint color analysis, plaster restoration, existing condition surveys, and historic structure reports. Underlying technical differentiation rests on Dr. Selwyn's PhD in physical chemistry from MIT combined with training in Boston University's preservation program, applied to materials analysis and replication of original building fabric on National Register and National Historic Landmark structures.

The firm's client base spans federal, state, and local government agencies (Massachusetts State House, Federal Courthouses in San Juan, Worcester, and Portland, Maine, Boston Public Library, Faneuil Hall, Old State House), elite academic institutions (Harvard, MIT, Yale, Wellesley, Boston College, Wesleyan, Smith, Mt. Holyoke, Duke, US Naval Academy, Phillips Andover), museums and cultural institutions (Isabella Stewart Gardner Museum, Carnegie Museum), religious organizations (Touro Synagogue, First Unitarian Society In Newton), and commercial/residential owners of historic properties. Services are delivered through direct, project-based consulting engagements, typically billed via quotes obtained through direct consultation rather than published pricing.

Revenue is generated exclusively through professional services fees tied to individual preservation and restoration projects. Go-to-market is sales-led and referral-driven, relying on professional reputation within the architectural and historic preservation community, recognition from preservation organizations (John Codman Award, Paul E. Tsongas Profiles in Preservation Award, Massachusetts Historical Commission Preservation Award), and demonstrated portfolio depth exceeding 1,000 projects over Dr. Selwyn's career. The company has no disclosed external funding, no subsidiaries, and remains entirely founder-owned, with no technology product, app, or API surface beyond the consulting practice itself.

Name

Preservation Technology Llc

Legal name

Preservation Technology Associates, LLC

Website

https://preservationtechnology.net

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

1–10 employees

Short description

Preservation Technology Associates, LLC is a woman-owned consulting firm founded in 1978 providing architectural conservation and historic building materials preservation services to government agencies, universities, museums, religious institutions, and private owners of National Register and National Historic Landmark properties, primarily in the Northeast US.

Ownership category

akta.pro rank

Product category

Architectural Conservation Services

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Historic Preservation & Conservation Planning (BPAHAKAH)

akta.pro secondary industries

Plaster Repair & Restoration (Lath & Plaster) (HSAGACAC), Stone Masonry Repair & Restoration (HSAGALAJ), Historic Home Renovation & Preservation (HSAPAEAG)

Keywords

• Architectural conservation
• Masonry conservation
• Historic roof restoration
• Historic preservation consulting
• Historic structure reports

Headquarters

HQ city

Boulder

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Consulting Services: The company generates revenue by providing architectural conservation consulting services to architects, government agencies, non-profits and property owners for historic preservation projects. Services include condition surveys, historic structure reports, masonry conservation, historic roof restoration, and paint analysis.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Preservation Technology Associates, LLC provides consulting and technical services for the conservation and restoration of historic building materials, including masonry conservation, historic roof restoration, historic metals restoration, plaster restoration, paint color analysis, existing condition surveys, and historic structure reports. The firm serves architects, government agencies, non-profits, museums, academic institutions, and property owners of historic buildings.

Product overview

Preservation Technology Associates, LLC is a woman-owned consulting firm providing architectural conservation and historic preservation services since 1978. The firm offers a unified suite of consulting services focused on historic building materials conservation rather than a technology product. The core service offerings include masonry conservation (covering limestone, sandstone, granite, brownstone, and slate), historic roof restoration and replacement, historic metals restoration, paint color analysis, plaster restoration, existing condition surveys, and historic structure reports. The company works exclusively on historic buildings listed on the National Register or National Historic Landmarks, serving architects, museums, government agencies, and academic institutions.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Over 1,000 projects completed in masonry conservation and historic roof restoration
• +1 more outcomes

Named customers14 records

Segments5 records

Ideal customer profiles3 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators3 records

Recent moves5 records

Direct peers

• John Canning & Co. Restoration and conservation firm with expertise in historic interiors, decorative finishes, plaster, and painted surfaces. Comparable to PTA in delivering highly specialized craft-driven conservation services to landmark and institutional clients.
• Wiss, Janney, Elstner Associates: Large national engineering, architecture, and materials science consulting firm with one of the largest dedicated historic preservation practices in the U.S. Directly comparable to PTA in offering masonry conservation, historic roof restoration, condition surveys, and historic structure reports for National Register and National Historic Landmark buildings.
• Building Conservation Associates: Northeast-based consulting firm specializing in architectural conservation and preservation of historic building materials. Provides masonry, stone, and envelope restoration consulting services directly parallel to PTA's core offerings.
• Walter B. Melvin Architects: Architecture firm specializing in preservation, restoration, and adaptive reuse of historic buildings. Closely aligned with PTA on consulting for masonry, roof systems, and exterior envelope restoration of National Register properties.
• Jablonski Building Conservation: Specialist preservation consulting firm providing condition surveys, masonry restoration, and historic structure reports for institutional and landmark buildings. Comparable to PTA in scope, technical depth, and focus on historic building materials.

Broad incumbents

• Quinn Evans Architects: Architecture firm with a dedicated preservation studio active on National Historic Landmark and federal preservation projects. Comparable to PTA in serving cultural, civic, and academic institutions, with similar materials conservation expertise.
• Goody Clancy: Boston-based architecture and planning firm with a notable preservation and historic rehabilitation practice. Comparable to PTA in working on university and civic landmarks, but as a multi-discipline incumbent rather than a specialist.
• Beyer Blinder Belle: Established Northeast architecture firm with a significant preservation and adaptive reuse portfolio. Provides overlapping services with PTA on landmark building restoration but does so as a much broader architectural practice.
• Simpson Gumpertz & Heger: National engineering firm with a building preservation and rehabilitation practice including failure investigation and masonry restoration. Overlaps with PTA's diagnostic service line but as a broader structural and envelope engineering consultancy.

Others

• Consigli Construction: Northeast construction manager with substantial historic preservation and restoration project experience. Not a direct consulting peer, but a frequent downstream partner or alternative delivery model for the same institutional preservation clients PTA serves.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/preservation-technology-llc

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Preservation Technology Llc