Duff Quarry

What Duff Quarry does

Duff Quarry, Inc. is a privately held Ohio corporation that produces and sells crushed stone, sand, and gravel for the construction industry. Headquartered at 9016 State Route 117 in Huntsville, Ohio (Logan County), the company operates a primary quarry at Huntsville plus two satellite sites at Bellefontaine (gravel plant) and Russells Point (sand plant); the two satellite sites are not currently in production but hold inventoried materials available via the Huntsville operation. Its core technology centers on aggregate crushing and screening — processing limestone into graded products such as #1/#2 blend, #2, #304, #4, #57, #8, #87, #9, rip rap, concrete sand, mason sand, pea gravel, gabion, and #603 Eagle Rock — supported by what the company describes as modern dispatcher technology for specification-compliant, timely delivery.

The company sells on a quote-based, pay-as-you-go pricing model with no publicly disclosed price list; customers request quotes through an online form or by phone (800-916-2811 / 937-686-2811) and may either pick up at the Huntsville quarry or arrange delivery across nine central Ohio counties (Logan, Union, Shelby, Hardin, Allen, Auglaize, Champaign, Delaware, Clark). Go-to-market is sales-led and direct: the website, phone/fax, and Request-a-Quote form are the primary commercial channels, supplemented by industry association and chamber memberships (Ohio Aggregates & Industrial Mineral Association; Logan County, Indian Lake, and Hardin County Chambers of Commerce) and partnerships with Ohio Ready Mix, COMSTOR Outdoor, and Community Storage & Properties.

Duff Quarry's customer base is horizontally segmented across contractors and construction companies (primary), individual/residential buyers, and communities/municipalities. It holds three regional awards (Logan County Chamber Business Integrity, Indian Lake Watershed, Jackson Center Business Integrity), is family-owned per ownership commentary, has raised no disclosed outside capital, and operates with 11-50 employees. No revenue, AI, software, or digital-platform capabilities are evidenced in the source material; the business is a traditional regional aggregate producer competing on quarry reserves, multi-site footprint, and local service reliability.

Name

Duff Quarry

Legal name

Duff Quarry, Inc.

Website

https://duffquarry.com

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

11–50 employees

Short description

Duff Quarry, Inc. is a privately held Ohio producer of crushed stone, sand, and gravel, headquartered in Huntsville and serving contractors, municipalities, and individual buyers across nine central Ohio counties via three quarry/plant sites with direct delivery.

Ownership category

akta.pro rank

Product category

Construction Aggregates

NAICS

Crushed and Broken Limestone Mining and Quarrying (212312), Other Crushed and Broken Stone Mining and Quarrying (212319), Construction Sand and Gravel Mining (212321), Stone Mining and Quarrying (21231)

SIC

Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400)

akta.pro primary industry

Limestone Quarrying (Industrial & Construction Grade) (IMAKAHAC)

akta.pro secondary industries

Crushed Stone Quarrying & Processing (IMAKAHAA), Sand & Gravel Extraction & Processing (IMAKAHAB), Rock Excavation, Blasting & Quarry-Assist Works (IMAFAKAE)

Keywords

• Crushed stone aggregates
• Sand and gravel supply
• Limestone quarrying
• Construction aggregates
• Rip rap materials

Headquarters

HQ city

Huntsville

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Personnel, Supply Chain, Infrastructure, Others

Revenue model

1. Aggregate Material Sales: Sale of crushed stone, sand, gravel, and related construction aggregates. Products include various sizes of limestone (#1/2 blend, #2, #304, #4, #57, #8, #87, #9), rip rap, concrete sand, mason sand, pea gravel, gabion, and specialty products. Pricing is quote-based based on product type, quantity, and delivery requirements.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Duff Quarry, Inc. extracts limestone and produces crushed stone, sand, and gravel aggregate products in a range of standard sizes for the construction industry. Products are sold by quote with delivery available to job sites across central Ohio or customer pickup at the Huntsville Quarry location.

Product overview

Duff Quarry offers a unified portfolio of crushed stone, sand, and gravel aggregate products for the construction industry. The product lineup includes various sizes of crushed limestone (#2, #4, #57, #8, #87), specialty blends (#1/#2, #304, #310/#411/#617, #6 Sand and Stone Mix), large rock products (#603 Eagle Rock, Class A-D Rip Rap/Dump Rock, Gabion), sand products (Concrete Sand, Mason Sand), and winter maintenance products (#9 Ice Grit). All products meet and/or exceed industry standards and are available for pick up or delivery from the Huntsville Quarry location, with delivery service to Ada, Bellefontaine, Kenton, Sidney, Urbana, West Liberty, Delaware, Marysville, and Wapakoneta areas.

Differentiator

Problem solved

Functional benefit

Products and services

• Crushed Limestone Aggregates (Sizes #2, #4, #57, #8, #87, #304, #603 Eagle Rock) Crushed limestone graded to various industry-standard sizes (e.g., #2 at 2.5–1.5 inches, #4 at 1.5–0.75 inches, #57 at 1–0.375 inches, #8 at 0.375 inches, #87 #8 blended to dust, #304 #4 blended to dust, #603 Eagle Rock 6 inch blended to dust) used as base material for new drives, leech beds, concrete base and mix, asphalt, and topping drives.
• Aggregate Blends (#1/#2 Blend, #310/#411/#617 Berm Aggregate, #6 Sand and Stone Mix, #7/#10 Lime Dust) Pre-blended aggregate mixes (#1/#2 blend used as base for new drives and top seawall riprap; #310/#411/#617 Berm aggregate for residential drives; #6 sand and stone mix for mixing own concrete; #7/#10 Lime Dust stone sand and lime blend for barn stalls and compaction) sold as standalone products for construction and compaction applications.
• #8 Pea Gravel Pea gravel at 0.375 inch diameter used in concrete and asphalt applications, sold as a standalone aggregate product.
• Class A-D Rip Rap / Dump Rock Large rock in various sizes from 6 to 24 inches used for seawalls, steep grades, and washout areas, sold as a standalone erosion-control and structural aggregate product.
• Gabion Aggregate Large aggregate over 3.5 inches in size used for seawalls, steep grades, and filling gabion baskets, sold as a standalone large-aggregate product.
• Concrete Sand Coarse sand used in concrete mixes, playgrounds, and beach applications, sold as a standalone sand product.
• Mason Sand Very fine sand used for block and brick mortar, sold as a standalone sand product.
• #9 Crushed Limestone / Ice Grit Ice grit in #4-16 sieve sizes used in place of road salt for winter road maintenance, sold as a standalone winter aggregate product.

Quantifiable outcome

• Serving 9 counties in central Ohio with delivery to major cities including Ada, Bellefontaine, Kenton, Sidney, Urbana, West Liberty, Delaware, Marysville, Wapakoneta

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Seven partnerships are on record, tiered minor.

• Ohio Ready Mix, Inc.minorStrategic or Co-development PartnerListed as a partner on Duff Quarry's website. Ohio Ready Mix, Inc. is a ready-mix concrete company that would be a natural customer and partner for aggregate supply.
• COMSTOR Outdoor, Ltd.minorStrategic or Co-development PartnerListed as a partner on Duff Quarry's website. COMSTOR Outdoor appears to be an outdoor/lanscaping company that may use aggregates in their projects.
• Community Storage & Properties, Ltd.minorStrategic or Co-development PartnerListed as a partner on Duff Quarry's website. A storage and properties company that may utilize aggregates for site development.
• Ohio Aggregates & Industrial Mineral AssociationminorOthersIndustry association membership for aggregates and industrial mineral producers in Ohio.
• Logan County Chamber of CommerceminorOthersLocal chamber of commerce membership supporting business community in Logan County, Ohio.
• Indian Lake Chamber of CommerceminorOthersLocal chamber of commerce membership supporting the Indian Lake area business community.
• Hardin County Chamber of CommerceminorOthersLocal chamber of commerce membership supporting the Hardin County, Ohio business community.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Vulcan Materials Company: The largest U.S. producer of construction aggregates — crushed stone, sand, and gravel — operating across multiple states including Ohio. Comparable product portfolio and end-markets, but at vastly greater scale; serves as the benchmark aggregate competitor.
• Martin Marietta Materials: A top-tier U.S. supplier of crushed stone, sand, and gravel with significant Ohio operations via its Aggregates USA platform. Directly comparable product mix (graded limestone, sand, specialty aggregates) and customer segments.
• Stoneco (MDC Holdings affiliate / Michigan Stone): A larger regional aggregate producer in the Midwest with crushed limestone, sand, and gravel operations. Comparable because it produces the same material set from quarries using similar crushing technology and serves overlapping Ohio/Midwest construction markets.
• Cemex USA (aggregates segment): Vertically integrated cement, ready-mix, and aggregates producer active in Ohio. Comparable because its aggregates arm supplies crushed limestone and sand to ready-mix operations that compete with Duff Quarry's contractor and ready-mix customers.
• CRH plc (Oldcastle Materials): Global building materials group with extensive U.S. aggregate operations through Oldcastle. Directly comparable in crushed stone and sand/gravel product lines and end-markets, though operating at massive global scale.
• LafargeHolcim US (Aggregate Industries): Major U.S. aggregates producer operating through Aggregate Industries with crushed stone, sand, and gravel quarries in multiple states. Comparable end-product portfolio to Duff Quarry at meaningfully larger scale.

Others

• Ohio Aggregates & Industrial Mineral Association (OAIMA): Ohio trade association of aggregates and industrial mineral producers, of which Duff Quarry is a listed member. Comparable as an ecosystem/network peer that aggregates independent quarries for advocacy, training, and industry standards.

Regional players

• Shelby Gravel & Topsoil: Regional aggregate and topsoil supplier operating in the same western/central Ohio service territory as Duff Quarry. Comparable in product mix (sand, gravel, crushed stone) and customer base of local contractors, though smaller scale and not disclosed to be publicly traded.

Direct peers

• Watson Gravel: Family-owned central Ohio producer of sand, gravel, limestone, and topsoil with a comparable small-to-mid market footprint and contractor customer base. Closest match to Duff Quarry's size, ownership structure, and go-to-market.
• Aggregate Resources (Springfield, OH): Independent Ohio aggregate operation producing concrete stone, sand, and gravel for ready-mix and paving customers in the same western/central Ohio geography as Duff Quarry. Directly comparable product and customer profile at similar scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/duffquarry

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 Duff Quarry