Quarra Stone

What Quarra Stone does

Quarra Stone Company, founded in 1989 in Madison, Wisconsin by James Durham, is a custom stone fabrication services firm serving signature architectural, institutional, and fine art projects across the United States and, since 2025, Europe. The company runs an integrated set of service lines covering stone consulting, global stone sourcing, digital and robotic fabrication, expert installation, architectural stone cladding, fine art fabrication, and historic restoration, supported by exclusive North American distribution of Vals Quartzite from Truffer AG in Switzerland and a proprietary Vals Shingle System.

Core production combines traditionally trained master stone carvers with advanced digital equipment, including 3D scanning and modeling, robotic CNC machining, and a magnetic levitation CNC stone-shaping machine that enables frictionless, ultra-precise fabrication. Quarra positions itself as one of the few North American fabricators operating both hand-carving and robotic CNC at full production scale, executing projects where artistic design intent, dimensional tolerance, and material durability all matter (for example, approximately 160,000 square feet of granite for the Obama Presidential Center, more than 400,000 pieces of sandstone at the U.S. Capitol Visitor Center, and 190 tons of curvilinear granite for the MIT Sean Collier Memorial).

The business model is B2B project-based with custom pricing per engagement. Revenue is generated through one-time stone fabrication contracts and professional services for consulting and installation, with go-to-market executed via direct enterprise sales to architectural specifiers, general contractors, developers, and institutional owners, supplemented by event-driven engagement through AIA chapter tours, the CODA summit, and an annual gathering in Pietrasanta, Italy. The company is privately held, founder-owned, has no disclosed venture or private equity backing, and is currently expanding from its original six-acre Madison site to a 25-acre Sun Prairie facility that doubles production capacity.

Name

Quarra Stone

Legal name

Quarra Stone Company

Website

https://quarrastone.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

11–50 employees

Short description

Quarra Stone Company, founded 1989 in Madison, Wisconsin, fabricates and supplies architectural and fine art stone for signature projects, serving architects, general contractors, developers, institutional owners, and artists through consulting, global sourcing, digital and robotic fabrication, and installation services.

Ownership category

akta.pro rank

Product category

Architectural Stone Fabrication Services

NAICS

Cut Stone and Stone Product Manufacturing (327991)

SIC

Cut Stone & Stone Products (3281)

akta.pro primary industry

Granite Quarrying & Dimension Stone Fabrication (IMAKAHAD)

akta.pro secondary industries

Marble Quarrying & Dimension Stone Fabrication (IMAKAHAE), Other Dimension Stone (Slate, Sandstone, Quartzite, Travertine) Quarrying & Fabrication (IMAKAHAF)

Keywords

• Architectural stone fabrication
• Stone cladding services
• Historic stone restoration
• Stone consulting services
• CNC stone machining

Headquarters

HQ city

Madison

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Infrastructure, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Stone Fabrication Services: Custom stone fabrication for architectural and artistic projects including cutting, finishing, and quality control of stone pieces
2. Stone Consulting: Professional stone selection and consulting services including material analysis, quarry visits, mockups, and technical specification support
3. Project Installation: On-site stone installation services for art and architectural projects ensuring seamless execution and flawless results
4. Vals Quartzite Distribution: Exclusive North American distribution of Vals Quartzite from Truffer AG, including sales of the proprietary stone material
5. Historic Stone Restoration: Preservation and restoration services for historic stone structures combining traditional craftsmanship with modern expertise

Go-to-market motion3 records

Distribution channels3 records

Marketing channels7 records

Core offering

Quarra Stone Company is a stone fabrication firm that sources, fabricates, and installs architectural stone for signature commercial, institutional, and cultural building projects. The company combines traditional master stone carving with robotic CNC and digital fabrication technology, delivering services from stone consulting and global sourcing through fabrication, installation, and historic restoration. It also holds exclusive North American distribution rights for Vals Quartzite from Switzerland.

Product overview

Quarra Stone Company operates as a stone fabrication services provider offering an integrated suite of eight distinct service lines. The core offerings include Stone Consulting (aesthetic/technical stone selection advisory), Digital Fabrication (robotic/CNC machining combined with traditional carving), Stone Sourcing (global procurement), Expert Installation, Fine Art Fabrication, Architectural Stone Cladding, and Historic Restoration. The company also holds exclusive North American distribution rights for Vals Quartzite from Switzerland and has developed the proprietary Vals Shingle System for shingle applications. Services span from initial consultation through sourcing, fabrication, and installation, enabling end-to-end project delivery.

Differentiator

Problem solved

Functional benefit

Products and services

• Stone Consulting Services Professional stone consulting for architects, developers, and institutional owners, covering material aesthetics, lifespan, budget considerations, and sustainable sourcing recommendations for art and architectural projects.
• Digital Fabrication State-of-the-art robotic and CNC fabrication combined with hand-carving to transform stone into intricate designs, complex structures, and custom architectural elements with high dimensional precision.
• Stone Sourcing Services Global procurement of raw blocks, semi-finished, and finished stone products through trusted quarry partnerships spanning Italy, India, Brazil, Switzerland, Portugal, and beyond.
• Expert Stone Installation On-site installation of fabricated stone elements for architectural and artistic projects, ensuring seamless integration and flawless execution in the surrounding environment.
• Fine Art Fabrication Fabrication of museum-worthy stone sculptures, monuments, and memorials in collaboration with artists, translating complex artistic visions into precise stone forms.
• Architectural Cut Stone / Stone Cladding Comprehensive architectural stone cladding for commercial, institutional, and large-scale residential projects, managing material sourcing, precision fabrication, and full installation under one contract.
• Historic Restoration Preservation and restoration of historic stone structures such as government buildings, monuments, churches, and cultural landmarks, combining traditional craftsmanship with modern digital scanning expertise.
• Vals Quartzite Distribution Exclusive North American distribution of Vals Quartzite, a premium Swiss Alpine stone combining granite durability with marble-like elegance, marketed in green and grey tones with white quartz veins for interior and exterior applications.
• Vals Shingle System Complete purpose-engineered system for working with Vals Quartzite as a full architectural shingle application, built around the stone's natural cleft character and encompassing every component needed to specify, source, and install Vals Quartzite shingles.

Quantifiable outcome

• Precision fabrication of 7,243 unique granite pieces with exact tolerances for Rite-Hite headquarters
• +2 more outcomes

Named customers10 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

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Truffer AGcoreStrategic or Co-development PartnerExclusive North American partnership with Truffer AG, the original family-owned quarry in Vals, Switzerland for distribution of Vals Quartzite. Quarra offers full support for design teams including samples/mock-ups, quarry trips, technical specs, and custom fabrication services for this exclusive Swiss stone material.
• Rachele PieriniminorOthersMaster craftswoman from Pietrasanta, Italy who visited Quarra Stone for hands-on mentorship and knowledge transfer in stone carving techniques, bridging centuries of stoneworking tradition.
• Martin FootminorStrategic or Co-development PartnerRenowned sculptor with whom Quarra collaborated on pursuing ancient carving techniques, enhancing the company's traditional craftsmanship capabilities.
• Germane BarnesminorStrategic or Co-development PartnerArchitect and designer who collaborated with Quarra Stone on Columnar Disorder project presented at CODA summit, producing sculptural works now part of Art Institute of Chicago's collection.

Scale indicators9 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Polycor: Polycor is North America's largest natural stone producer, owning quarries and fabrication facilities across the continent (granite, marble, limestone, soapstone). They are a broad incumbent in architectural and monumental stone with portfolio offerings that overlap Quarra's specialty fabrication work.
• Coldspring: Coldspring is one of North America's largest dimensional stone producers and fabricators, with own quarries and full fabrication/installation services. They compete for the same institutional, government, and commercial cladding projects Quarra pursues, but at significantly larger scale and broader geographic reach.
• Rock of Ages: Rock of Ages owns granite quarries and operates large-scale granite manufacturing for memorials, mausoleums, and architectural applications. While focused heavily on the memorial segment, they compete for granite architectural fabrication and dimensional stone projects of similar scope.

Direct peers

• Stony Creek Quarry: Stony Creek Quarry produces and fabricates distinctive pink/gray dimension stone, supplying signature architectural projects across the US. They are a dimension stone specialist competing for the same high-profile architectural specifications.
• Rugo Stone: Rugo Stone is a US-based custom architectural stone fabricator serving commercial and institutional projects with CNC fabrication and installation capabilities. They directly compete for the same B2B project pipeline - architects, GCs, and developers specifying cladding on signature buildings.
• Continental Cut Stone: Continental Cut Stone is a custom limestone and architectural cut stone fabricator serving commercial and institutional projects across North America. They are a direct peer in the architectural cut stone category with similar project-based B2B delivery model.
• ABC Worldwide Stone (ABC Stone): ABC Stone imports, distributes, and fabricates natural stone for high-end architectural projects, with showrooms and fabrication facilities in major US metros. They overlap directly with Quarra on premium material sourcing, custom fabrication, and serving the architectural specifier community.
• Victor O'Neill Stone: Victor O'Neill Stone is an architectural stone distributor and fabricator serving major US commercial and institutional projects. They overlap with Quarra's stone sourcing, consulting, and fabrication services for premium architectural cladding work.

Regional players

• Luck Stone (Luck Stone Center): Luck Stone is a large aggregate and dimension stone producer primarily serving the Mid-Atlantic and Southeastern US. They are a regional dimension stone player in adjacent stone categories, including architectural cut stone, but geographically concentrated outside Quarra's Midwest-heavy core footprint.

Emerging players

• Botticelli & Company / Marble & Stone Restoration Specialists: Botticelli is a specialty marble and natural stone restoration/maintenance provider with partial overlap on Quarra's historic restoration service line (e.g., NY State Capitol). Smaller scale and more focused on maintenance rather than new construction.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@quarrastonecompany
• LinkedInlinkedin.com/company/quarra-stone-company-llc
• Instagraminstagram.com/quarrastone

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 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 Quarra Stone