About Modulus Cleanrooms
Leading Modular Cleanroom Manufacturer

We Deliver Absolute Value - Leading Modular Cleanroom Systems

Modulus (mod•u•lus) noun • 

The absolute value of a real or complex number ( |a| )

Modulus Cleanrooms has over 20 years of cleanroom industry experience. 

Since our founding, we’ve worked to combine our expertise and technical knowledge with exceptional attention to detail and dedication to excellence.

We believe in discovering the most effective, efficient modular cleanroom solution for every client, and fulfilling that solution in a way that delivers you absolute value at each step.

We’re licensed, insured and bonded. 

License (CA) #1103167

Licence (OR) # 243918


With more than 20 years of experience in the industry, we know cleanrooms. The solutions we recommend are based on a wealth of technical knowledge and hands-on industry experience.


We believe in honesty and transparency. We will tell you upfront exactly how much you can expect your project to cost, and how long it will take based on your specifications and application.


We pride ourselves on our exceptional reliability. You can trust us to complete your project in accordance with the schedule and specifications we agreed on at the start of our partnership.

What sets us apart?

We believe it’s two things.

Our dedication to delivering absolute value and our breadth of technical knowledge.

With decades of experience in the industry, our specialists know exactly what is needed to develop the high-quality cleanroom that meets your application and your ISO class.

That technical knowledge, combined with our focus on absolute value ensures we provide every client exactly the cleanroom they need, in the most cost-effective way possible. The end product is a cleanroom that meets your application now, and that will continue to deliver value to your facility for years to come.

That’s the Modulus Difference.

Martin Goldberg, PhDSVP - R&D, SlipChip Corporation
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"Seth was incredibly responsive and personally involved from quote all the way through certification sign off. It was refreshing to deal with a company where the principle is involved from day one through the completion of the project. From the bid perspective, Modulus did the best job to utilize the limited space that we had to worth with. Modulus had to coordinate their work with the other remodel activities including ethernet cabling, HVAC, electrical, etc., and did so seamlessly without incident. The overall quality of their work was excellent and they clearly put the customer first."
Richard SmithVP of Sales, Evolve Manufacturing
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“I have worked with Seth and his team on several projects and they have exceeded my expectations on every level. From the first visit, where Seth uses his experience and wealth of knowledge to improve the project with suggested design changes, to the finishing details, the projects have always gone smoothly and remained on schedule and on budget.”
Nathaniel FernhoffCo-Founder, Orca Bio
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"These guys are very professional and helped us out big time with our clean rooms. They have consistently met our needs and exceeded our expectations. They've been able to support our cleanroom builds as a scrappy start-up (~100 sqft) and then have been able to continue to provide us with cleanroom solutions to build out our larger facility. Highest recommendation possible."
Audrey WoodingEngineering Program Manager, Aurora
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"Thank you to you and your team for a job well done. We will keep you in mind if we build more cleanrooms. Please reach out if you need us to provide a referral for your team."

Partnership Opportunities

Looking for a partner to support an upcoming build?

The Modulus Cleanrooms team works hand-in-glove with general contractors to help you win your bid with the best modular cleanroom solution that fits your timeline and your budget.

Get your quote!

If you have a cleanroom project in mind, let us know what you’re looking for by filling out the form. Our team will be in touch as soon as possible with a personalized quote based on the information you provide.


Fill out the form for your personalized cleanroom quote!

Request a Quote