Rocky Mountain SIMS

Rocky Mountain Scientific Instrument Maintenance (Rocky Mountain SIMS) is a full service Scientific Instrument Maintenance company based in Johnstown Colorado. We service a comprehensive range of scientific and research equipment including Centrifuges, Spectrophotometers, Liquid Scintillation Counters, High Performance Liquid Chromatography, Incubators and Environmental Chambers. Rocky Mountain SIMS also offers Preventative Maintenance Agreements and specialized service contracts for any size company, government agency or asset inventory. Our experienced service team is available to respond to emergency service calls and provide unparalleled technical support to our clients.

Jenny’s Board Repair, JBR began in 1994 as a small company repairing circuit boards and servicing complex scientific electronics. In 2011 Jenny Gunther acquired the Colorado, New Mexico and Wyoming divisions of Lab Performance Specialists to form the greater Rocky Mountain Scientific Instrument Maintenance of today. We are a member in good standing of NISA – National Independent Service Association and we are also a 100% Woman Owned Small Business.

Rocky Mountain SIMS is licensed and insured. We are in full compliance with EPA, Radiation and Workers Compensation Regulations and we are also licensed and qualified to preform refrigeration work. We are registered as an authorized vendor through the following Federal and State Systems: SAM, Fedbid & Fedbiz, Rocky Mountain E Purchasing, CU Marketplace, CSU Kuali and The University of WY Procurement Program.

Scientific Instrument Maintenance

Rocky Mountain SIMS Maintains The Following Industry Certifications:

  • ARC Flash Safety

  • OHSA

  • NFPA

  • IEEE Certified

Institute of Electrical and Electronics Engineers (IEEE)

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Jenny Gunther


  • Head of Accounts Payable/Receivable

  • Federal Contracts Manager



John Gunther

Senior Field Service Engineer

John is a 34 year career Electronic & Industrial Design Engineer who has worked for:

  • Beckman Instruments

  • Lab Performance Specialists

  • and the University of Oregon as their in-house service engineer

Dean Williams

Field Service Engineer

Dean began his career in 1991 and has worked for:

  • Daktronics

  • Danka Omnifax

  • Denver Instruments

  • Fisher Scientific

  • and Beckman Coulter