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  • Keystone Engineering Group, Inc.
    Keystone Engineering Group, Inc.
    610.407.4100
    967 E Swedesford Rd Ste 300, 19341-2332  Exton

    Keystone Engineering Group, Inc. was founded in 1997 by four partners who had worked together at a large consulting firm. The founders, Philip L. Schwartz, P.E., Paul J. Lacon, P.E., James J. Panetti, P.E. and David T. McHenry formed their own company to provide a high level of personalized service…