Nonmetallic Mineral Product Manufacturing in Delaware

NAICS 327 · DE

The Bureau of Labor Statistics counted 37 establishments in Delaware in 2024. The annual payroll for these establishments was about $0.1 billion, according to the Bureau of Labor Statistics. There are 28 facilities listed in the register, located across 17 cities. M Cubed Technology in Newark had 91 employees in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Plants in Delaware28 FACILITIES

Facility	City	Employees	Status
Howarth Granite Holdings LLC	Claymont	—	● ACTIVE
Miles Scientific CORP	Newark	—	● ACTIVE
HCHma Concrete LLC Dba Heritage Concrete Heald Street Facility	Wilmington	—	◐ LIKELY ACTIVE
PMPrince Minerals LLC	New Castle	—	◐ LIKELY ACTIVE
MCM Cubed Technologies	Newark	—	◐ LIKELY ACTIVE
LRLincoln Ready Mix Concrete	Lincoln	—	◐ LIKELY ACTIVE
SCSeaford Concrete Products	Bridgeville	—	◐ LIKELY ACTIVE
TCThoro-goods Concrete	Millsboro	—	◐ LIKELY ACTIVE
CCCoker Concrete	Dover	—	◇ UNVERIFIED
HCHma Concrete LLC Dba Heritage Concrete Cheswold Facility	Cheswold	—	◇ UNVERIFIED
HCHma Concrete LLC Dba Heritage Concrete Middletown Faci;ity	Townsend	—	◇ UNVERIFIED
PIPpg Inds INC Works 32	Newark	—	◇ UNVERIFIED
RMRinker Middletown Pipe	Middletown	—	◇ UNVERIFIED
ACAtlantic Contracting Services, LLC	Greenwood	20–99	◐ LIKELY ACTIVE
DPDover Plant	Dover	1–19	◐ LIKELY ACTIVE
MCM Cubed Technology	Newark	20–99	◐ LIKELY ACTIVE
PBParker Block	Millsboro	20–99	◐ LIKELY ACTIVE
PRPHLCP Rinker Materials	Middletown	20–99	◐ LIKELY ACTIVE
RIRath Inc., Newark Facility	Newark	1–19	◐ LIKELY ACTIVE
RCRocla Concrete Tie, Inc - Delaware Facility	Bear	20–99	◐ LIKELY ACTIVE
BSBest Stone Works of De, LLC	Wilmington	—	◇ UNVERIFIED
BMBear Materials LLC	Bear	—	◇ UNVERIFIED
GAGillespie and Son, INC.	Greenwood	—	◇ UNVERIFIED
HCHma Concrete LLC Dba Heritage Concrete Frankford Facility	Frankford	—	◇ UNVERIFIED
MRMiddletown Ready Mix Concrete Plant	Townsend	—	◇ UNVERIFIED
RAR. and H. Filter Co., INC.	Georgetown	—	◇ UNVERIFIED
SGShamrock Glass Company INC.	Seaford	—	◇ UNVERIFIED
TFTyson F. Sartin, INC.	Saint Georges	—	◇ UNVERIFIED

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