Marissa Tanomrat

Marissa Tanomrat serves as a key procurement professional within the SLAC National Accelerator Laboratory, a Department of Energy contractor facility dedicated to advancing fundamental science through precision instrumentation and mission-critical infrastructure. She manages complex acquisitions for highly specialized scientific equipment, ensuring alignment with SLAC’s strategic goals in quantum materials, ultrafast physics, and high-energy particle research. Her portfolio centers on procuring cutting-edge analytical instruments, motor and generator systems, and precision-manufactured components essential to accelerator operations and photon science experiments. Tanomrat’s work bridges technical requirements with federal acquisition regulations, facilitating timely delivery of mission-enabling hardware while maintaining strict compliance with DOE and NIST standards. Her contractor relationships span niche manufacturers and engineering firms with proven expertise in laboratory-grade instrumentation and high-precision fabrication. She collaborates closely with vendors capable of meeting stringent tolerances, vacuum compatibility, and radiation-hardened specifications, often engaging through competitive sealed bidding and technical evaluation processes. While no single contractor dominates her portfolio, she consistently works with firms possessing deep domain knowledge in analytical instrumentation and electromechanical systems, fostering long-term partnerships grounded in technical reliability and performance validation. Tanomrat’s contracting patterns reflect a strong preference for full and open competition, with 100% of her acquisitions designated as non-set-aside. This indicates a focus on technical merit and capability over socioeconomic classifications, prioritizing performance and mission readiness above targeted small business set-asides. While she does not routinely utilize 8(a), HUBZone, or SDVOSB programs, her approach ensures that qualified small businesses compete on equal footing based on technical proficiency and compliance with rigorous scientific standards. Her primary NAICS focus includes Surgical and Medical Instrument Manufacturing, Analytical Laboratory Instrument Manufacturing, Motor and Generator Manufacturing, Commercial and Service Industry Machinery Manufacturing, and Measuring and Pumping Equipment Manufacturing—all reflecting SLAC’s need for high-precision, low-noise, and ultra-reliable components. She specializes in procuring mass spectrometers, particle beam diagnostics, cryogenic systems, and custom electromechanical actuators critical to next-generation research facilities.