Catalyst Connection
Find manufacturersAdd your company
Catalyst Connection

Copyright 2026 Catalyst Connection

All rights reserved

Directory

  • All manufacturers
  • Maryland manufacturers
  • New York manufacturers
  • Ohio manufacturers
  • Pennsylvania manufacturers
  • West Virginia manufacturers

Company

  • About us
  • Blog
  • Contact us

Support

  • Terms of service
  • Privacy policy

Stay up to date

Get regional manufacturing news, events, and resources from Catalyst Connection.

Subscribe to the newsletter
Back to results
  1. Home
  2. ›
  3. Manufacturers
  4. ›
  5. Maryland
  6. ›
  7. Greater Maryland Tool & Manufacturing Corp
Greater Maryland Tool & Manufacturing Corp logo

Greater Maryland Tool & Manufacturing Corp

Claim this profile
Mountain Lake Park, MD 21550
301-334-2550
Visit website

At a glance

Headquarters
Mountain Lake Park, MD
UEI
THJULTLPQGQ4
CAGE
34549

About

Founded in 1966 by World War II Navy Seabee Raymond Dubinsky, Greater Maryland Tool & Manufacturing Corp. remains a family-run Maryland manufacturer under the leadership of his son Mark and grandson Steve. The company is known for supplying precision-machined parts to the U.S. Navy Nuclear Propulsion Program since the 1970s, along with work for defense contractors and government agencies.

Capabilities and markets

Products

Manufacturing processes

Materials worked

Service offerings

Economic activities

End markets served

Energy segments

Grid ComponentsNuclear

Directory supply chains

Classification

NAICS codes

Certifications and registrations

Certifications

  • U.S. Small Business Administration HUBZone Small Business

  • MIL-I-45208A Quality System

  • MIL-STD-45662A Calibration System

  • MIL-SPEC Welding S9074-AQ-GIB-010/248 and S9074-AR-GIB-010/278

    Compliance program

  • MIL-STD-767 and MIL-STD-2041 Special Cleaning

    Compliance program

  • ASME/ANSI-B16.5

    Compliance program

  • ASME/ANSI-B16.15

    Compliance program

  • ASME/ANSI-B16.9

    Compliance program

  • MIL-F-20042

    Compliance program

  • MIL-F-1183

    Compliance program

  • ASMEB165

    Quality certification

  • ASMEB1615

    Quality certification

  • ASMEB169

    Quality certification

Ownership and small business status

  • HUBZone

Related manufacturers

  • Painter Tool Inc logoPainter Tool IncFounded in 1967, family-owned Painter Tool Inc. is a North Huntingdon machine shop that produces precision-machined, fabricated, and welded parts for U.S. military, naval and specialized commercial applications. Its work is especially closely tied to Navy production, with manufacturing and inspection governed by military, ASTM and other customer standards. A quality team with more than 50 years of combined experience supports the company’s disciplined inspection and traceability practices.332510IRWIN, PA
  • Monroe Tool & Manufacturing Co. Inc logoMonroe Tool & Manufacturing Co. IncA third-generation family business, Monroe Tool & Manufacturing grew from Herb Sr.’s Cleveland garage into a shop known for taking on difficult, mission-critical work. The company has operated for more than 75 years, from building top-secret bomb racks during World War II to producing precision-machined parts and assemblies for demanding industrial customers.CLEVELAND, OH
  • Fulton Tool Co., Inc logoFulton Tool Co., IncFounded in 1959, veteran-owned Fulton Tool Co., Inc. produces precision-machined parts and provides contract machining from its 35,000-square-foot Fulton, New York facility. The company rebuilt after a catastrophic 2003 fire and now supports military and aerospace programs, including work associated with the M1 Abrams tank and B-1B bomber. Fulton Tool is registered with the U.S. Department of Defense and maintains quality systems certified to MIL-I-45208A and MIL-STD-45662.FULTON, NY
  • RJC Manufacturing Services, LLC logoRJC Manufacturing Services, LLCFamily-owned and operated, RJC Manufacturing Services has built more than 30 years of experience serving demanding industrial customers, including the naval and nuclear fields. The Pennsylvania machine shop is known for handling unusually large precision parts and taking projects from certified material procurement through final delivery for customers in medical equipment, heavy machinery, and other manufacturing sectors.IRWIN, PA
More manufacturers in Maryland

Contact information

Website

greatermarylandtool.com

Emails

  • mark@greatermarylandtool.com
  • steve@greatermarylandtool.com

Phone numbers

  • 301-334-2550
  • 301-334-2555

Social

Locations

Greater Maryland Tool & Manufacturing Corp location map for 5 RESOURCE AVE

5 Resource Ave

Mountain Lake Park, MD 21550

Garrett County

Get directions
Greater Maryland Tool & Manufacturing Corp location map for 5 RESOURCE AVE

5 Resource Ave

Mtn. Lake Park, MD 21550

Garrett County

Get directions
1 of 2

Is this your company?

Claim this profile to keep it up to date, showcase your capabilities, and reach new buyers.

Claim this profile

Directory source

Source
greatermarylandtool.com
Updated
Sep 2026