Nonmetallic Mineral Product Manufacturing in Delaware

NAICS 327 · DE

This register lists 29 facilities in Delaware. The Bureau of Labor Statistics counted 38 establishments in Delaware. Rocla Concrete Tie, Inc - Delaware Facility, located in Bear, employed 41 people in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Plants in Delaware22 FACILITIES

Listing 22 of 29: the facilities with a website, a size band or two sources on record. The rest are in site search.

Facility	City	Employees	Status
Miles Scientific CORP	Newark	1–19	● ACTIVE
Howarth Granite Holdings LLC	Claymont	—	● ACTIVE
HCHma Concrete LLC Dba Heritage Concrete Heald Street Facility	Wilmington	—	◐ LIKELY ACTIVE
PMPrince Minerals LLC	New Castle	—	◐ LIKELY ACTIVE
CCCoherent Ceramics, INC.	Newark	—	◐ LIKELY ACTIVE
HCHma Concrete LLC Dba Heritage Concrete Cheswold Facility	Cheswold	—	◐ LIKELY ACTIVE
HCHma Concrete LLC Dba Heritage Concrete Middletown Faci;ity	Townsend	—	◐ LIKELY ACTIVE
LRLincoln Ready Mix Concrete	Lincoln	—	◐ LIKELY ACTIVE
RMRinker Middletown Pipe	Middletown	—	◐ LIKELY ACTIVE
SCSeaford Concrete Products	Bridgeville	—	◐ LIKELY ACTIVE
TCThoro-goods Concrete	Millsboro	—	◐ LIKELY ACTIVE
BSBest Stone Works of De, LLC	Wilmington	1–19	◇ UNVERIFIED
CCCoker Concrete	Dover	—	◇ UNVERIFIED
PIPpg Inds INC Works 32	Newark	—	◇ UNVERIFIED
ACAtlantic Contracting Services, LLC	Greenwood	20–99	◐ LIKELY ACTIVE
DPDover Plant	Dover	1–19	◐ 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
HGHowarth Granite Holdings LLC	Wilmington	1–19	◇ UNVERIFIED
RAR. and H. Filter Co., INC.	Georgetown	1–19	◇ UNVERIFIED

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