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Business Details
37 Years
experience
Your Trusted Engineering Design Partner in Seattle
Founded in 1989, The Greenbusch Group is a multi-disciplinary engineering design firm committed to exceptional design, successful partnerships, and sustainability. Our team of licensed professionals specializes in acoustical design, audio/video engineering, commissioning, mechanical engineering, and vertical transportation services. With over 35 years of experience, we serve private and public sector clients across the western United States, delivering innovative solutions for civic, educational, transportation, and healthcare projects. Our MWBE certification reflects our dedication to diversity and inclusion in engineering. We harmonize technical expertise with architectural vision, providing stamped reports in Alaska, Idaho, Oregon, and Washington.

Our engineers hold prestigious certifications including LEED AP BD+C, INCE, and CCP, ensuring compliance with the highest industry standards. Through offices in Seattle, Vancouver, and Spokane, we offer localized expertise with nationwide capabilities. Our collaborative approach integrates with multi-disciplined teams to optimize project outcomes, from initial design to construction administration. We prioritize energy conservation through system right-sizing, grant utilization, and sustainable design practices aligned with LEED and Washington Sustainable Schools protocols. With decades of experience in noise and vibration analysis, we provide 3D modeling and mitigation strategies for industrial and infrastructure projects.
Services
Acoustical Design Audio/Video Engineering Commissioning Mechanical Engineering Vertical Transportation
Details
  • Year established: 1989
Highlights and features
  • 35+ years of engineering design expertise since 1989
  • MWBE-certified engineering firm with diverse team expertise
  • LEED-certified professionals for sustainable design solutions
  • Collaborative approach with multi-disciplined design teams
  • Specialized in acoustical engineering with state licensing capabilities
Associations and certifications
  • MWBE
Services
Acoustical Design
Our acoustical design services optimize sound quality and noise control for diverse spaces. We provide 3D modeling, reverberation testing, and mechanical noise analysis for airports, schools, and healthcare facilities. Our licensed engineers deliver stamped reports meeting regulatory requirements across multiple states.
Mechanical Engineering
We design energy-efficient mechanical systems focusing on sustainability and cost savings. Our services include ground source heat pumps, energy modeling, and plumbing system design. We help clients transition to electric systems while maximizing rebates and grants for new and renovated buildings.
Vertical Transportation
Our vertical transportation solutions cover elevator and escalator design, planning, and commissioning. We conduct traffic analysis, capacity studies, and life-cycle cost assessments for new installations and historic building retrofits across commercial and public sectors.
Commissioning
We ensure building systems operate as designed through comprehensive commissioning services. Our certified agents perform functional testing, design reviews, and LEED compliance verification for government, educational, and industrial facilities.
Environmental Noise
We assess and mitigate environmental noise impacts using 3D modeling and specialized equipment. Our services include hydroacoustic monitoring, vibration analysis, and permitting support for infrastructure projects, ensuring compliance with regulatory standards.
People
Julie Wiebusch
Co-Founder
Co-founder with INCE certification specializing in acoustical engineering. Provides strategic leadership in technical innovation and client partnerships across the firm's engineering disciplines.
John Greenlaw
Co-Founder
Co-founder and licensed professional engineer with expertise in mechanical systems. Focuses on sustainable design principles and technical excellence in engineering solutions for complex projects.
Rami Kaur
President
President overseeing business operations with 20+ years of experience in engineering management. Leads strategic growth initiatives while maintaining the firm's commitment to quality and client satisfaction.
Adam Jenkins
Vice President
Vice President of Acoustics with multiple certifications including PE, INCE, and CTS-D. Specializes in acoustical design and audio/video systems for complex architectural spaces.
Dylan Turner
Vice President
Vice President of Mechanical Engineering with LEED AP BD+C and CCP certifications. Expert in sustainable design, commissioning, and energy-efficient mechanical systems for diverse building types.
Questions
What engineering services does Greenbusch offer?
We provide acoustical design, audio/video engineering, mechanical systems design, commissioning, and vertical transportation solutions for commercial and public sector projects.
Is Greenbusch MWBE-certified?
Yes, we are a certified Minority and Women Owned Business Enterprise (MWBE) with diverse team expertise across all our engineering disciplines.
What geographic areas do you serve?
We serve clients throughout the western United States from offices in Seattle, Vancouver, and Spokane, with project experience nationwide.
Do you handle both new and existing buildings?
Yes, we provide engineering services for new construction, renovations, and adaptive re-use projects across various building types and conditions.
What sustainability certifications do your engineers hold?
Our team includes LEED AP BD+C, INCE, and CCP certified professionals who specialize in sustainable design and energy-efficient building systems.
How do you ensure project quality?
We implement rigorous commissioning processes, functional testing, and design reviews to ensure all systems meet specifications and owner requirements.
Reviews (4)
Tufat
Nov 16, 2019 Report
Asked them about getting acoustics consulting for my house. They told me they typically do not do residential, but offered to give me a little advice over the phone. Even though they didn't provide the acoustics service, I thought that was pretty nice of them to try to help as much as they could.
Alen Basic
Apr 12, 2018 Report
Working with The Greenbusch Group, Inc. as our acoustical consultants I can say that they are great acoustical engineering firm to work with, especially Julie Wiebusch she helped us a lot on many projects. I would recommend this firm to everyone out there.
Jennifer H.
Jan 15, 2018 Report
I have worked with Greenbusch for over 5 years. Through that time, I have found staff and management personnel to be approachable, professional and solution-oriented. Solid technical and analytical skills were an expectation from the start, and they have consistently met those expectations. Where I've been surprised is their willingness to be flexible, as is required when supporting construction projects.

When timelines and contractor plans change, they adjust accordingly with an attitude that assures me that they are happy to help. In addition, Greenbusch analysts have supported my projects by explaining complicated and highly technical aspects of sound to project managers and project staff. They are professional when they engage with agency representatives and regulators, and they inspire confidence. I want these guys on my team again.
John Berendzen
Jan 10, 2018 Report
I have been working with Greenbusch on various projects for the past fifteen years - they are hands down the best acoustical engineers I've ever known. I trust Julie Wiebusch - whatever she tells us to do, we do. Excellent results!