Rosenfeld Concrete

What Rosenfeld Concrete does

Rosenfeld Concrete Corp. is a Boston-based, privately held ready mix concrete and aggregate producer serving residential, commercial, and infrastructure construction throughout eastern Massachusetts. Founded in 1985 and headquartered at 100 N. Washington Street in Boston, the company operates as a subsidiary of Boston Sand & Gravel Companies, a multi-company regional network that also includes Southeastern Concrete, Lawrence Ready Mix Concrete, Manchester Sand & Gravel, Ossipee Aggregates, and the New Hampshire Northcoast short line railroad. Rosenfeld runs a network of ready mix plants in Walpole, Hopedale, and Charlestown, supported by a fleet of mixer trucks and a GPS-enabled dispatch system. Its product portfolio spans core ready mix concrete (standard, flowable fill, grout and shotcrete, lightweight, heavyweight), aggregates (coarse concrete sand and pea stone and crushed stone in 3/8", 3/4", and 1.5" sizes), an extensive admixture line distributed under partnership with BASF's Master builders family plus Sika Scofield, Xypex, Interstar, and Fibermesh, and a green product range including ECONO FILL, pervious concrete, white concrete, and ready mix with recycled fly ash/slag, as well as inter-locking recycled concrete blocks.

Revenue is generated through one-time unit-priced sales of ready mix concrete and bulk aggregates sold by the ton, supplemented by specialty admixture and green product sales that target LEED-qualifying projects. Pricing for aggregates and blocks is publicly described as pay-as-you-go unit pricing (per ton for sand and stone, per unit for 2x2x4 and 2x2x6 concrete blocks), while concrete pricing is not publicly disclosed and is quoted through the sales team. Go-to-market is enterprise field sales: Sales and Quality staff work directly with contractors and developers on product selection, estimating, and delivery scheduling, supported by a company website that functions as a product catalog and contact channel. The company also uses the New Hampshire Northcoast short line railroad, connecting with Pan Am Railways, to transport sand and gravel from its Ossipee, NH (2,400 acres) and Hooksett, NH (Manchester Sand & Gravel, 3,200 acres) facilities and to provide year-round freight service for bulk goods.

Customer concentration is moderate and spread across three primary horizontal segments: small residential pours (sidewalks, residential foundations, repairs), commercial construction (foundations, parking lots, commercial structures), and large-scale infrastructure projects (aqueducts, tunnels, bridges, airport runways). Named end customers include the Hultman Aqueduct Project, the Metro-West Tunnel Project, and the Regency at Assabet Ridge residential development. The company holds no patents or trademarks disclosed in the input, but maintains ASTM compliance across multiple admixture product lines, EPD certification at the Charlestown plant from the National Ready Mixed Concrete Association, and a LEED-accredited professional on staff for sustainable construction specifications. The firm has 11–50 employees, no disclosed external funding, and no M&A history in the available data.

Name

Rosenfeld Concrete

Legal name

Rosenfeld Concrete Corp.

Website

https://rosenfeldconcrete.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

Rosenfeld Concrete Corp. is a Boston-based ready mix concrete and aggregate subsidiary of Boston Sand & Gravel Companies, producing and delivering concrete, sand, stone, and specialty admixture products for residential, commercial, and infrastructure projects across eastern Massachusetts.

Ownership category

akta.pro rank

Product category

Ready Mix Concrete & Construction Aggregates

NAICS

Ready-Mix Concrete Manufacturing (327320), Other Concrete Product Manufacturing (327390)

SIC

Concrete, Gypsum & Plaster Products (3270)

akta.pro primary industry

Ready-Mix Concrete Production & Delivery (IMADAAAA)

akta.pro secondary industry

Asphalt Aggregates & Specialty Aggregates (Rail Ballast, Riprap, Lightweight) (IMADAAAJ)

Keywords

• Ready mix concrete
• Aggregate supply
• Concrete delivery
• Construction materials
• Green concrete products

Headquarters

HQ city

Boston

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Ready Mix Concrete Sales: Production and delivery of ready mix concrete to residential, commercial, and infrastructure projects throughout eastern Massachusetts.
2. Sand and Aggregate Products: Bulk materials including sand and aggregate products sold by the ton, with transport by truck from NH aggregate plants and via short line railroad.
3. Specialty Concrete Products: Specialized concrete products including lightweight, heavyweight, flowable fill, grout, shotcrete, and fiber-reinforced concrete.
4. Railroad Freight Services: Year-round freight service hauling bulk goods such as steel and liquefied propane tanks via New Hampshire Northcoast railroad.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Rosenfeld Concrete Corp. produces and delivers ready mix concrete, sand, and aggregate products for residential, commercial, and infrastructure construction projects throughout eastern Massachusetts. The company operates three ready mix plants (Walpole, Hopedale, Charlestown), a fleet of mixer trucks with GPS-enabled dispatch, and sources aggregates from owned New Hampshire quarries transported via its short line railroad. It also offers specialty concrete mixes (lightweight, heavyweight, flowable fill, grout, shotcrete), green building products (pervious concrete, ECONO FILL, white concrete, recycled fly ash/slag mixes), and recycled interlocking concrete blocks.

Product overview

Rosenfeld Concrete is a building materials supplier providing ready mix concrete and aggregate products for residential, commercial, and infrastructure construction projects in eastern Massachusetts. The company operates as part of Boston Sand & Gravel Companies and offers a portfolio of concrete products (Standard Ready Mix, Flowable Fill, Grout & Shotcrete, Lightweight and Heavyweight concrete), aggregate materials (sand and stone in various sizes), and specialty products including fibers, colors, and admixtures (BASF MasterFiber, MasterMatrix, MasterAir, MasterCell, MasterGlenium, MasterLife, MasterPel, MasterPolyheed, MasterPozzolith, MasterSet, MasterSure product lines, plus XYPEX and Krystol waterproofing products). The company also offers green/sustainable products such as ECONO FILL (recycled fly ash fill), pervious concrete, and white concrete for LEED projects, along with recycled inter-locking concrete blocks. The product portfolio is organized around core concrete and aggregate offerings with specialized additives and green building products as extensions.

Differentiator

Problem solved

Functional benefit

Named customers3 records

Segments3 records

Ideal customer profiles3 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

17 partnerships are on record, tiered minor and core.

• American Society for Testing and Materials (ASTM)minorOthersStandards organization partner. Many products meet ASTM standards including ASTM C 1116, C 260, C 494, C 869, C 1240.
• US Green Building CouncilcoreStrategic or Co-development PartnerStrategic partner for green building and LEED certification projects. Company has LEED accredited professional on staff to assist with LEED qualifying products and documentation.
• BASF Admixture SystemscoreTechnology or IntegrationTechnology partner supplying admixture products including MasterFiber, MasterMatrix, MasterAir, MasterCell, MasterGlenium, MasterLife, MasterPel, MasterPolyheed, MasterPozzolith, MasterSet, and MasterSure product lines.
• Nexamp, Inc.minorOthersRenewable energy company partner listed on partners page.
• Pan Am RailwayscoreStrategic or Co-development PartnerRailroad connection partner enabling efficient sand and gravel transport from Ossipee, NH facility via New Hampshire Northcoast short line railroad.
• Boston Sand & GravelcoreChannel Partner/ Reseller/ DistributorParent company providing ready mix products throughout Boston. Rosenfeld Concrete operates as part of Boston Sand & Gravel Companies network.
• Southeastern Concrete Co.minorChannel Partner/ Reseller/ DistributorRelated company in Boston Sand & Gravel network providing ready mix products in southeastern Massachusetts. Olly Demacedo serves as Operations Manager for both companies.
• Lawrence Ready Mix ConcreteminorChannel Partner/ Reseller/ DistributorRelated company in Boston Sand & Gravel network providing ready mix products in southeastern Massachusetts and Cape Cod. Olly Demacedo serves as Operations Manager.
• National Ready Mixed Concrete AssociationminorOthersIndustry association partner. The Charlestown plant achieved Environmental Product Declaration certification from this association.
• Construction Industries of MassachusettsminorOthersRegional industry association partner.
• National Association of Home BuildersminorOthersNational industry association partner.
• American Road & Transportation Builders AssociationminorOthersIndustry association partner for transportation construction.
• Portland Cement AssociationminorOthersIndustry association partner for cement industry.
• National Stone, Sand, & Gravel AssociationminorOthersIndustry association partner.
• Association of General ContractorsminorOthersIndustry association partner.
• Concrete Reinforcing Steel InstituteminorOthersIndustry association partner.
• MaCAPAminorOthersIndustry association partner.

Scale indicators4 records

Expansion highlights5 records

Direct peers

• Aggregate Industries (Holcim): Major Holcim-owned ready-mix and aggregate producer with a significant Massachusetts/New England footprint. Directly competes with Rosenfeld for residential, commercial, and infrastructure concrete business in the Boston region.
• Lawrence Ready Mix Concrete: Sister company in the BS&G Companies network providing ready-mix in southeastern Massachusetts and Cape Cod. Operates the same product lines under shared Operations Manager Olly Demacedo and effectively competes and collaborates within the same parent portfolio.
• Southeastern Concrete Co. Sister BS&G Companies ready-mix operator in southeastern Massachusetts, sharing cross-company leadership with Rosenfeld. Directly comparable in product mix, plant model, and customer base.
• Boston Sand & Gravel: Parent company in the BS&G Companies network and direct ready-mix/aggregate competitor serving the Boston market. Operates the same products and customer base as Rosenfeld and shares leadership (e.g., Alan Pastyrnak, Olly Demacedo), making it the closest functional peer.
• S. M. Lorusso & Sons: Massachusetts-based aggregate and construction materials producer with ready-mix operations. Comparable as a regional vertically integrated concrete and aggregate supplier competing for the same Boston-area project pipeline.

Broad incumbents

• Heidelberg Materials (Lehigh Hanson): One of the largest cement, aggregate, and ready-mix producers in the U.S. through Lehigh Hanson. As Rosenfeld's cement supply comes from a competitor's major cement peer, Heidelberg is a relevant broad incumbent setting pricing in cement and concrete products.
• Oldcastle APG (CRH): CRH's building products division producing ready-mix, aggregates, and concrete products across the U.S. Operates as a broad incumbent competitor in the eastern U.S. construction materials market that Rosenfeld operates in.
• Vulcan Materials Company: Largest U.S. producer of construction aggregates and a major ready-mix concrete operator nationally. Competes broadly in aggregates and ready-mix and would be the primary national incumbent counterpart for any major Boston-area project.
• Cemex USA: Global building materials company with significant U.S. ready-mix and aggregate operations. Relevant incumbent peer for cement, ready-mix, and aggregate pricing dynamics that flow into Rosenfeld's cost structure and competitive environment.

Regional players

• J. P. Carrara & Sons: Vermont/New Hampshire-based ready-mix concrete and aggregate producer. Operates a similar product line and plant model in northern New England, adjacent to Rosenfeld's NH aggregate footprint and partially overlapping service area.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

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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 Rosenfeld Concrete