Essco Company Profile Printable PDF

Primary Service

  • Calibration and repair of inspection, measurement and test equipment (IM&TE)
  • Offer onsite and two-shift laboratory service; overnight service also available


  • Established in 1961 and operated by Walsh Engineering Services, Inc., since 1974.
  • 32% veteran staff.


  • A single facility with 27,200 sq. ft. total area and concrete construction
  • 12,000 sq. ft. for four environmentally controlled laboratories (mechanical: 20± .5°C, 15-75%RH; electronic: 23±3°C, 15-75%RH)
  • 4,500 sq. ft. storage/shipping/receiving; 10,500 sq. ft. office/administrative; 


Electronic, Mechanical, Dimensional, Fiber Optic, Temperature, Pressure, Vacuum, Mass, Flow, Force, Humidity, Air Velocity, Light and Torque instrumentation

Annual Sales

  • ~$14 million

Volume of Work

  • ~114,000 calibrations/repairs performed annually
  • Mix of calibrations: 60% electronic/40% mechanical, performed both in-lab and at customer sites

Customers Served

  • ~2,500 customers nationwide, including ~1,500 in New England
  • No single customer represents over 2% of annual revenue

Industries Served

Aeronautics, Aerospace/Defense, Automotive, Biotechnology/Pharmaceutical, Energy/Green Energy, Manufacturing (General, Scientific, Medical Devices, Semiconductors), Metrology/Testing Laboratories and Telecommunications

Quality Systems

  • The Essco quality system is accredited to ISO/IEC 17025:2017.
  • The management system requirements in ISO/IEC 17025:2017 (sec. 4) are written pertinent to laboratory operations and meet the principles of ISO 9001:2015 Quality Management Systems Requirements.
  • Essco meets the technical competence and management system requirements necessary to consistently deliver technically valid test results and calibrations.


  • 5 padded delivery vans, 1 field service van, 15 field service autos
  • Carrier service available


80+ personnel, including 46 metrologists, 3 engineers, 4 sales, 4 administration/finance, 9 management, 1 purchasing, 6 customer service, 8 logistics, 1 human resource, 2 quality assurance

Key Personnel

  • President: Michael Walsh x113
  • Executive Vice President: Troy Thomas x128
  • VP of Finance: Diane Stephens x131
  • Onsite Manager: Tom Thomas x142
  • Lab Manager: Nick Paoletta x123
  • Quality Manager: Mike Stanislovitis x148
  • Operations Manager: Joe Fournier x156


  • American Society for Quality, Measurement Quality Division
  • Associated Industries of Massachusetts
  • Government-Industry Data Exchange Program
  • International Society for Pharmaceutical Engineering
  • National Association for Proficiency Testing
  • National Conference of Standards Laboratories International


  • SIC Code 8734; NAICS Code 541380
  • Tax ID 04 255 1401; small company <500
  • D&B 04-827-5697; rating: BA2
  • Equal Opportunity Employer