Founded in 1987 as a one-room manual machine, tool and die shop with a single Wire EDM, Lenson Machine Inc. now operates a 9,000-square-foot, climate-controlled manufacturing facility in eastern Baltimore County, producing prototype and production parts through CNC machining and precision EDM work. Its 14 CNC machines and supporting manual equipment also allow the company to handle stamping, tool fabrication, and selected mold and die repairs, from one-off parts to production runs in the thousands. Lenson is ISO 9001:2015 certified, with measurement equipment certified and traceable to NIST.
ISO 9001:2015
Radnor Manufacturing, LLCSince 2001, Southern Maryland’s Radnor Manufacturing has operated as a precision machine shop, using CNC machining to make close-tolerance parts for commercial and government customers. Its Leonardtown facility supports both production runs and single-piece prototypes, with three vertical machining centers and three turning centers. Radnor has held ISO 9001:2015 certification since 2010, underscoring its focus on dimensional verification and consistent quality.LEONARDTOWN, MD
Chesapeake CNC Manufacturing Center, IncFounded by Bob Jacob in 2002, Chesapeake CNC Manufacturing Center makes precision parts and assemblies through Swiss screw machining at its 45,000-square-foot facility on Maryland’s Eastern Shore. Its team brings more than 100 years of combined Swiss-machining experience and supports projects from prototypes and short runs through production, with in-house assembly and a dedicated quality-control department. Chesapeake CNC is certified to AS9100D and ISO 9001:2015, and is also ITAR-registered and HUBZone certified.CHESTERTOWN, MD
Chesapeake Machining & Fabrication, IncFounded in 1981, Chesapeake Machining & Fabrication makes precision-machined parts and fabricated metal components for regional, national, and international customers. Its 32,500-square-foot East Baltimore facility combines large-scale machining and fabrication capacity with turnkey project management for demanding industrial work. The company operates under an ISO 9001-compliant quality system and holds American Institute of Steel Construction certification, with portable CMM and laser-tracking equipment supporting inspection of large parts.BALTIMORE, MD
Ross Machine Company, IncFounded by Thomas Ross Sr. in September 1986, Ross Machine Company is a Maryland precision CNC machining contract manufacturer producing complex parts for defense, industrial, and manufacturing customers. The privately owned company handles both short and long production runs, with prototyping capabilities and an in-house machining operation that includes vertical, horizontal, and five-axis CNC mills. Ross Machine is certified to AS9100D and ISO 9001:2015.BELCAMP, MD