Cast Stone Institute

What Cast Stone Institute does

Cast Stone Institute is a non-profit trade association founded in 1927 that serves the architectural cast stone industry in the United States. The Institute's core function is to develop and maintain industry standards governing architectural cast stone, most notably the TMS 404/504/604 consensus standards covering design, fabrication, and installation, as well as the Section 04-72-00 Standard Specifications revised in January 2023. The organization also operates a Certified Producer Program, maintaining a directory of 24+ certified cast stone manufacturers across the U.S. that meet its standards for mix design, testing, and plant inspection.

The Institute generates revenue through Producer and Associate Membership fees, Annual Convention registration ($650-$950 per attendee), the Cast Stone Excellence Awards competition, and AIA-accredited continuing education (CEU) courses offered both in-person through certified producers and online through a partnership with AEC Daily. Its customer base spans four primary segments: architects and design professionals (primary), certified cast stone producers (primary), mason contractors, and associate members representing industry suppliers. The organization employs 1-10 staff and operates from Friendswood, TX, with an event contact point in Lexington, KY.

Leadership consists of Executive Director Jan Boyer. The organization pursues a community-led go-to-market motion, leveraging its standards authority, technical library, annual convention, awards program, and digital channels (website, email newsletter, Facebook, Instagram) to maintain relevance with the cast stone industry. There is no indication of venture capital backing, external investment, or plans for material expansion beyond ongoing programmatic operations.

Name

Cast Stone Institute

Legal name

Cast Stone Institute

Website

https://caststone.org

Company type

Private

Founded year

1927

Operating status

Operating

Headcount range

1–10 employees

Short description

Cast Stone Institute is a 1927-founded U.S. non-profit trade association that develops industry standards, certifies cast stone producers, and provides continuing education and technical resources to architects, masonry contractors, and manufacturers.

Ownership category

akta.pro rank

Product category

Trade Association Services for Architectural Cast Stone

NAICS

Cut Stone and Stone Product Manufacturing (327991)

SIC

Cut Stone & Stone Products (3281)

akta.pro primary industry

Marble Quarrying & Dimension Stone Fabrication (IMAKAHAE)

Keywords

• Cast stone standards
• Architectural masonry certification
• Trade association services
• Continuing education CEUs
• Building material specifications

Headquarters

HQ city

Friendswood

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Others

Revenue model

1. Producer Membership Fees: Annual membership fees for Cast Stone Manufacturers who meet CSI's rigorous certification standards for mix design, testing, and plant inspection.
2. Associate Membership Fees: Annual membership fees for suppliers and supporters of the cast stone industry.
3. Annual Convention Registration: Event registration fees for the annual convention including full member registration ($850-$950), guest registration ($650-$750), and various add-ons.
4. Cast Stone Excellence Awards: Annual awards competition held in conjunction with the Annual Convention to recognize outstanding design, craftsmanship, and manufacturing excellence.
5. Continuing Education Courses: AIA-accredited continuing education courses for architects and design professionals, offered in-person through certified producer members and online through AEC Daily.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Cast Stone Institute is a non-profit trade association that develops and publishes industry standards (TMS 404/504/604, Section 04-72-00), operates a Certified Producer membership and certification program for architectural cast stone manufacturers, delivers AIA-accredited continuing education to architects, and hosts the annual convention and Cast Stone Excellence Awards competition.

Product overview

The Cast Stone Institute is a trade association for cast stone manufacturers, associates, and concrete technologists, not a product company. Its offerings include industry standards (TMS 404/504/604 Standards), a Technical Manual, and architect education CEU courses (CSI-104A, CSI-105A, CSI-106B). The organization operates a producer certification program, hosts the annual Cast Stone Excellence Awards competition, and organizes an Annual Convention for member education and networking. The Technical Resources section provides specifications, technical bulletins, typical details, color options, and touchup/repair guidance for the cast stone industry.

Differentiator

Problem solved

Functional benefit

Products and services

• CSI Certified Producer Membership and Certification Annual Producer Membership with certification for cast stone manufacturers who meet the Institute's standards for mix design, testing, and plant inspection; certified members are listed in the CSI Producer Directory and may use the CSI Certified Producer designation.
• CSI Associate Membership Annual Associate Membership for suppliers and supporters of the cast stone industry, including directory listing and access to member events.
• Architect Education CEU Courses AIA-accredited continuing education courses for architects and design professionals, including Architectural Design with Cast Stone (CSI-104A), The Making of Cast Stone: A Plant Tour (CSI-105A), and Understanding Architectural Cast Stone Detailing (CSI-106B). Delivered online via AEC Daily and in-person through Certified Producer Members.
• CSI Annual Convention Annual in-person convention bringing CSI Producer and Associate Members together for business meetings, education sessions, networking, and the Cast Stone Excellence Awards. Includes member registration, guest registration, and optional add-ons such as tours and the awards banquet.
• Cast Stone Excellence Awards

Quantifiable outcome

• The annual Cast Stone Excellence Awards recognize outstanding design by architects, craftsmanship by masonry contractors, and manufacturing excellence by certified producers.

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• AEC DailycoreStrategic or Co-development PartnerPartnership with AEC Daily to provide online continuing education courses for architects and design professionals. The 'Architectural Design with Cast Stone' course is available 24/7 through the AEC Daily platform, providing AIA-accredited CEU credits.
• 21c Museum Hotel LexingtonminorOthersVenue partner for the 2026 Annual Convention. Located at 167 W. Main Street, Lexington, KY 40507 in the historic Fayette National Bank Building.
• Buffalo Trace DistilleryminorGTM or Marketing PartnerLocal bourbon tour partner for the 2026 Annual Convention, included as an add-on activity for attendees.
• Castle & Key DistilleryminorGTM or Marketing PartnerLocal bourbon tour partner for the 2026 Annual Convention, included as an add-on activity for attendees.

Scale indicators1 record

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• American Concrete Institute: Major codes-and-standards body for the entire concrete industry. CSI members operate within ACI's broader code environment, making it a comparable but significantly larger institutional peer.
• Precast/Prestressed Concrete Institute: Larger, established trade association covering the broader precast and prestressed concrete industry. Overlaps with CSI's member ecosystem but operates at a much larger scale and scope.

Direct peers

• National Concrete Masonry Association: Trade association representing manufacturers of concrete masonry products including block and related units. Directly comparable association structure serving CSI's neighboring product category within concrete masonry.
• Building Stone Institute: Trade association promoting natural building stone for architectural applications. Directly comparable mission and member base to CSI, focused on the dimension stone substitute market where cast stone competes.
• Natural Stone Institute: Primary U.S. trade association for the natural dimension stone industry (formerly Marble Institute of America). Closest structural peer to CSI, with parallel certification, education, and standards missions in adjacent stone product categories.
• The Masonry Society: Co-publisher of the TMS 404/504/604 standards referenced by CSI. Comparable as a masonry-focused technical society developing codes, standards, and education for engineered masonry systems.
• Mason Contractors Association of America: Trade association representing mason contractors who install cast stone. Directly comparable association model serving an adjacent stakeholder segment in the masonry value chain.

Others

• American Institute of Architects: Professional association for architects and the accreditation body for CSI's CEU program. Relevant ecosystem participant as the organization whose members consume CSI's educational content and certification signals.

Emerging players

• Tile Council of North America: Trade association for the tile industry, an adjacent architectural surfacing category. Comparable association structure addressing overlapping architect and contractor audiences.
• Architectural Precast Association: Trade association for architectural precast concrete, a competing cladding system to cast stone. Relevant peer as an adjacent category that competes for the same architectural specification decisions.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/CastStoneInstitute
• Instagraminstagram.com/cast_stone_institute/?hl=en
• LinkedInlinkedin.com/company/cast.-stone-institute

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Cast Stone Institute