Stoneco
Stoneco of Michigan is a CRH subsidiary that supplies crushed limestone, sand, gravel, and recycled concrete to construction contractors, government agencies, and property owners across South Michigan through quarries, plants, and rail-served distribution yards.
- Company typePrivate
- Founded1900
- HeadquartersMonroe, United States
- Headcount251–500
- GTM typeB2B
- OfferingHardware or Manufacturing
What Stoneco does
Stoneco of Michigan is a regional construction aggregates supplier headquartered in Monroe, Michigan, and operating as a wholly-owned subsidiary of CRH (NYSE: CRH), the global diversified building materials group. Founded in 1900, the company has supplied crushed limestone, sand, and gravel to Michigan contractors for over 100 years. Its operating footprint spans South Michigan and includes 4 limestone quarries, 4 portable plants, 3 rail terminals, 11 plant operations, and 20 active sand and gravel operations, supplemented by rail-served distribution yards in Flint, Lansing, and Grand Rapids and a recycled-concrete yard in Ann Arbor.
The company offers a portfolio of core products — crushed limestone (60+ gradations and sizes), construction and concrete sand, gravel (21A, 22A, 23A, peastone), rip rap, limestone base, and recycled concrete — with MDOT- and ODOT-certified grades targeting state-funded infrastructure projects. Distribution is direct: customers obtain quotes by phone or via a recently deployed online customer portal, then pick up materials at quarry and plant locations or receive delivery. The company emphasizes a safety-first culture, publicly tracking lost-time incident days via a Production Scoreboard, and serves construction contractors, commercial and residential property owners, and government/public works agencies across highway, parking lot, driveway, and erosion-control applications.
Stoneco generates revenue through quote-based unit pricing (cubic yard, ton, or unit) with credit card/debit card acceptance at locations and a credit-application process for repeat buyers. As a private subsidiary of CRH, Stoneco does not publicly disclose standalone revenue, and the company is operationally integrated with CRH's Americas Materials Solutions division and a related CRH entity, Michigan Paving & Materials. CFO Bill Brownell is the named executive contact.
Stoneco firmographics
Firmographics- Name
- Stoneco
- Legal name
- StoneCo
- Website
- https://stoneco.net
- Company type
- Private
- Founded year
- 1900
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Stoneco of Michigan is a CRH subsidiary that supplies crushed limestone, sand, gravel, and recycled concrete to construction contractors, government agencies, and property owners across South Michigan through quarries, plants, and rail-served distribution yards.
- Ownership category
- akta.pro rank
Stoneco industry classification
Industry- Product category
- Construction Aggregates
- NAICS
- Crushed and Broken Limestone Mining and Quarrying (212312), Construction Sand and Gravel Mining (212321), Stone Mining and Quarrying (21231)
- SIC
- Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400)
- akta.pro primary industry
- Crushed Stone Quarrying & Processing (IMAKAHAA)
- akta.pro secondary industries
- Sand & Gravel Extraction & Processing (IMAKAHAB), Limestone Quarrying (Industrial & Construction Grade) (IMAKAHAC), Construction Aggregates Mining & Processing (Sand, Gravel, Crushed Stone) (IMADAAAI)
Keywords
Where Stoneco is headquartered
LocationHeadquarters
- HQ city
- Monroe
- HQ country
- United States
- HQ region
- North America
Offices15 records
Markets served
Stoneco business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Operations, Personnel, Supply Chain, Infrastructure, Technology or R&D
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Quote-based pricing for construction aggregates |
Distribution channels1 record
Marketing channels3 records
Stoneco product offering
Product offeringCore offering
Stoneco of Michigan extracts, produces, and distributes construction aggregates — including crushed limestone, sand, gravel, rip rap, and recycled concrete — from quarries, sand & gravel plants, and recycle yards across Southeast Michigan. It supplies 60+ certified gradations to commercial, governmental, and residential construction projects, dispatching orders via its own truck fleet and the Quincy Rail Terminal.
Product overview
Stoneco of Michigan is a construction aggregates supplier operating as a subsidiary of CRH. The company offers a comprehensive portfolio of construction materials centered on crushed limestone, sand, and gravel products. It operates four limestone quarries, four portable plants, three rail terminals, 11 plant operations, and 20 active sand and gravel operations throughout South Michigan. The core product line includes crushed limestone in over 60 gradations and sizes, sand products (including concrete sand), gravel in various grades (21A, 22A, 23A, peastone), rip rap for erosion control, limestone base for road construction, and recycled concrete. All products meet MDOT and ODOT specifications for state-funded construction projects, and the company serves construction, landscaping, and infrastructure projects including highways, parking lots, driveways, and environmental restoration work.
Differentiator
Problem solved
Functional benefit
Brands
- Michigan Paving & Materials: A related CRH company providing paving and construction materials services
Products and services
- Crushed Limestone (multiple MDOT/ODOT gradations) Crushed limestone aggregates produced to MDOT and ODOT gradation specifications (including 21A, 6A, 1x3, 4x8, MDOT 4G, MDOT 6AA, Peastone and similar grades), sold by ton or cubic yard to construction contractors, government agencies, and homeowners for base, subbase, road surface, and landscaping applications.
- Sand and Gravel Aggregates Sand and gravel aggregates — including concrete sand, fill sand, Class 2 sand, washed sand, and pea stone — sold by cubic yard and ton to construction contractors, commercial property owners, government/public works, and residential customers for concrete production, fill, drainage, pipe bedding, and landscaping.
- Rip Rap (larger armor stone for erosion control) Heavy rip rap stone quarried and supplied by Stoneco in multiple gradations for shoreline protection, embankment stabilization, drainage channels, and erosion-control construction projects, sold to contractors and government agencies.
- Certified Project Aggregates (MDOT / ODOT specification grades) Aggregates produced to specified MDOT and ODOT gradations (21A, 6A, 1x3, 4x8, MDOT 4G, MDOT 6AA, Peastone and additional certified grades) packaged as a dedicated, spec-compliant offering for public-bid roadway, bridge, and infrastructure projects where material certification is required.
- Recycled Concrete Aggregate Recycled crushed concrete supplied from Stoneco's recycle yards for use as a sustainable base and fill material in construction, road, and site-prep applications, with pickup and delivery options for contractors and homeowners.
- Aggregate Distribution (Quincy Rail Terminal and Truck Dispatch) Logistics and delivery service operating from the Quincy Rail Terminal and Stoneco's own truck fleet, enabling pickup or delivery of aggregates to contractor, commercial, government, and homeowner customers throughout the region.
Quantifiable outcome
- Lost time incidents tracked - Ottawa Lake: 7,580+ days, Newport: 6,939+ days, Maybee: 7,374+ days, 100th Street: 9,161+ days
Companies that use Stoneco
Customer profileSegments4 records
Ideal customer profiles4 records
Stoneco technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
Stoneco partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- CRHparent companyStoneco of Michigan is a subsidiary of CRH (NYSE: CRH), a global building materials company. CRH operates across North America, Europe, and Asia with positions in cement, ready-mixed concrete, aggregates, asphalt, civil engineering, and contracting services.
Scale indicators7 records
Recent moves5 records
Expansion highlights5 records
Stoneco competitors and assessment
Company assessmentBroad incumbents
- CRH plc: Stoneco's NYSE-listed parent company and one of the largest global aggregates and building materials producers. Operates the same aggregates product lines and end markets as Stoneco at a vastly larger global scale, and is the direct owner of Stoneco's operations.
- CEMEX: Global building materials company with U.S. aggregates and ready-mix concrete operations serving similar commercial and infrastructure end customers. Comparable product portfolio but operates at a much larger, multinational scale.
- Holcim: Global building materials giant with significant aggregates, cement, and ready-mix concrete operations. Overlaps with Stoneco on aggregates supply for construction and infrastructure, but operates at vastly larger scale and across a much broader product portfolio.
- Heidelberg Materials: Global aggregates, cement, and ready-mixed concrete producer with U.S. operations overlapping Stoneco's core product set and end markets. A broad incumbent with significant aggregates footprint, though not concentrated in Michigan.
Direct peers
- Martin Marietta Materials: Major U.S. supplier of crushed stone, sand, gravel, and other aggregates serving infrastructure, commercial, and residential construction — directly comparable in product mix, end markets, and DOT-certified supply.
- Vulcan Materials Company: The largest producer of construction aggregates in the United States, including crushed stone, sand, and gravel, serving similar highway, commercial, and residential construction end markets as Stoneco. Directly comparable business model, product set, and DOT-certified customer base.
- Summit Materials: Aggregates-focused building materials company operating quarries and plants across the U.S., serving similar DOT-certified highway and construction customers. Closely comparable in scale, product mix, and end-market exposure to Stoneco.
- Granite Construction: U.S. infrastructure and aggregates company that both produces construction materials (sand, gravel, crushed stone) and uses them in heavy civil construction. Comparable in aggregates product set and end-market exposure to DOT-funded infrastructure work.
Regional players
- Edw. C. Levy Co. Privately-held, family-owned producer of crushed stone, sand, gravel, and slag aggregates with significant operations in Michigan and the Midwest. Directly competes with Stoneco in overlapping Michigan and Great Lakes markets with a similar product portfolio.
Emerging players
- Arcosa, Inc. U.S. provider of construction products including aggregates, with a focused but smaller aggregates footprint serving similar infrastructure and commercial end markets. Comparable product mix with a more limited geographic and operational scale than Stoneco.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Stoneco social profiles
Digital presenceStoneco financial estimates
Financial estimateRevenue estimate
Valuation estimate
Stoneco leadership team
Management profileNumber of profiles
Profiles1 record
Stoneco funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Stoneco 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 Stoneco
What does Stoneco do?
Stoneco of Michigan extracts, produces, and distributes construction aggregates — including crushed limestone, sand, gravel, rip rap, and recycled concrete — from quarries, sand & gravel plants, and recycle yards across Southeast Michigan. It supplies 60+ certified gradations to commercial, governmental, and residential construction projects, dispatching orders via its own truck fleet and the Quincy Rail Terminal.
Is Stoneco a public or private company?
Stoneco is a private company. It is classified as corporate owned and is currently operating.
When was Stoneco founded?
Stoneco was founded in 1900. It employs 251 to 500 people.
Where is Stoneco based?
Stoneco is headquartered in Monroe, United States, in the North America region.
Who are Stoneco's main competitors?
Broad incumbents on record are CRH plc, CEMEX, Holcim and Heidelberg Materials. Direct peers are Martin Marietta Materials, Vulcan Materials Company, Summit Materials and Granite Construction. Edw. C. Levy Co. is listed as a regional player. Arcosa, Inc. is listed as an emerging player.
Does Stoneco have an API?
No public API is recorded for Stoneco.
What industry is Stoneco in?
Stoneco's product category is Construction Aggregates. Its primary akta.pro industry code is IMAKAHAA, Crushed Stone Quarrying & Processing, with a secondary code of IMAKAHAB, Sand & Gravel Extraction & Processing. Its NAICS code is 212312 and its SIC code is 1400.