Compare Washington commissioning firms for new construction, existing-building commissioning, HVAC testing, controls, tune-ups, and systems optimization.
publicly researched providers
Publicly sourced · organic order is not soldView provider listA building commissioning firm helps confirm that equipment, controls, and operating sequences work together as intended. Commissioning services can range from focused HVAC testing to a broader process covering design review, functional performance testing, issue tracking, corrections, verification, documentation, and operator training.
The right commissioning firm depends on the building and the job. New construction, an existing-building performance problem, a compliance tune-up, and verification after an HVAC or controls project can require different scopes. The listings below reflect public service information—not a guarantee that every provider offers every form of commissioning.
Providers and programs do not always use these terms in exactly the same way. Describe the building, the problem, and the result you need, then ask each firm to name the process and deliverables it proposes.
Begins during design or construction and continues through testing and turnover. The commissioning provider may review design documents, witness installation and startup, test system performance, track issues, and help prepare the operating team.
Investigates how an occupied building is actually operating and identifies improvements. EBCx services commonly use interviews, control trends, site observations, functional testing, an issues log, and verification after approved changes are made.
Usually refers to commissioning an existing building that did not previously receive a systematic commissioning process. In practice, firms sometimes use retro-commissioning and EBCx interchangeably, so the written scope matters more than the label.
Recommissioning revisits systems after an earlier commissioning effort. A tune-up may be narrower or tied to a specific program requirement. Ask which systems will be tested, who makes corrections, and whether performance will be verified afterward.
Short answers grounded in public program and federal guidance. The written scope still controls each engagement.
Depending on the project, commissioning services can include design and submittal review, functional performance testing, issue tracking, verification of corrections, systems documentation, and operator training. Existing-building work may also use interviews, trend data, site observations, and targeted testing.
EBCx is a structured process for investigating and improving how an occupied building operates. The right approach depends on the building, its systems, available data, known problems, and the result the owner needs.
They are sometimes used interchangeably, but retro-commissioning commonly describes work on an existing building that did not receive a systematic commissioning process before. Ask each company to define its process, testing, corrections, and final deliverables.
Not automatically. Seattle Building Tune-Ups follow a city-defined compliance process. A commissioning or HVAC proposal should identify whether it covers that program, who completes the required submission, and what work remains outside the scope.
Listings are ordered by the directory’s underlying research sequence, not quality or sponsorship. Confirm territory, services, credentials, availability, and price directly.
Office: Seattle
Seattle sustainability and building-performance consultancy with public services spanning audits, benchmarking, planning, commissioning, measurement, and code compliance.
Office: Seattle
Northwest design-build, engineering, and facilities firm whose public profile lists benchmarking, audits, controls, retro-commissioning, and implementation services.
Office: SeaTac
Pacific Northwest mechanical and building-systems firm with publicly listed HVAC, controls, engineering, tune-up, and energy-efficiency capabilities.
Office: Renton
Energy services company with a Washington presence and publicly listed auditing, benchmarking, engineering, controls, retro-commissioning, and performance-contracting services.
Office: Regional / remote
Clean-energy consultancy with public commissioning, benchmarking, audit, program, measurement, and HVAC optimization capabilities.
Office: Seattle
Seattle engineering and sustainability team formerly known as Rushing, now part of IMEG, with public services spanning energy analysis, commissioning, and high-performance building work.
Office: Kent / Everett
Kent and Everett building-technical-services firm with a broad public profile covering benchmarking, audits, code compliance, commissioning, controls, and maintenance.
Office: Northwest regional
Facilities and operational consultancy whose public profile lists tune-ups, audits, benchmarking, commissioning, planning, and HVAC optimization.
Office: Washington
Washington-qualified energy services firm whose public profile spans benchmarking, audits, engineering, retro-commissioning, controls, construction, and measurement.
Office: Mukilteo / Seattle
Washington mechanical contractor with public energy, environment, HVAC, controls, implementation, and commissioning capabilities.
Office: Tacoma
Building commissioning specialist with a current Tacoma hub whose first-party site focuses on optimizing facility systems against design intent and owner requirements.
Office: Seattle
Building-science consultancy listed in the Seattle benchmarking directory; relevant public work includes building performance and enclosure consulting.
Office: Bellevue
Washington engineering firm with public MEP, controls, commissioning, and building-performance work from a Bellevue office.
Office: Seattle
High-performance engineering firm offering energy analysis, carbon consulting, sustainable design, and building-systems engineering from a Seattle presence.
Office: Remote / national
National building-performance consultancy combining ENERGY STAR benchmarking, disclosure compliance, audits, commissioning, and energy modeling.
Office: Seattle / Spokane
Washington MEP engineering firm with Seattle and Spokane offices offering energy audits, modeling, upgrades, commissioning, facility assessments, and Clean Buildings support.
Office: Spokane / Tri-Cities
Spokane-based testing and commissioning specialist serving the Inland Northwest with new-building commissioning, retro-commissioning, testing and balancing, and specialized building-systems verification.
Office: Seattle
Seattle-headquartered engineering and consulting firm offering independent energy audits, Washington Clean Buildings support, commissioning, sustainability strategy, and high-performance building analysis.
Office: Seattle
Seattle engineering and commissioning office with published Washington Clean Buildings, energy benchmarking, audit, building tune-up, modeling, and commissioning services.
Office: Tukwila / Richland / Spokane / Fife
Washington mechanical and building-systems contractor combining benchmarking, Clean Buildings and Seattle tune-up support with commissioning, automation, maintenance, engineering, and implementation.
This directory is independent and cannot determine what a particular building must do.