Modular Devices Name Charlie Wemhoff as Chief Operating Officer to Support Rapid Growth

By: O2 Investment Partners via Business Wire

October 09, 2025 at 06:00 AM EDT

Modular Devices (www.modulardevices.com), a national leader in mobile and modular medical imaging and cleanrooms solutions, and a portfolio company of O2 Investment Partners (www.o2investment.com), announced today the appointment of Charlie Wemhoff as its first Chief Operating Officer (COO), effective September 22, 2025. This newly created leadership role reflects the company’s continued expansion across multiple industries and geographies and its commitment to premier services to clients nationwide.

Wemhoff brings more than 25 years of operational leadership experience spanning both the medical imaging and cleanroom operations. His expertise includes leading multi-site operations, driving facility expansion, and successfully integrating acquired businesses.

“We are thrilled to welcome Charlie as Modular Devices’ first Chief Operating Officer,” said Mark Koers, Chief Executive Officer, Modular Devices. “Charlie brings an exceptional record of leadership in medical imaging, cleanroom operations, and large-scale manufacturing that is invaluable as we continue to scale. His expertise in driving operational excellence and leading complex integrations, combined with his strong local roots, uniquely equip him to strengthen our organization and accelerate our mission.”

Prior to joining Modular Devices, Wemhoff served as Vice President of Operations—North America at Nanosonics, where he directed manufacturing, distribution, engineering, and service functions while driving 25% annual growth. Prior to that, he held senior leadership roles at G&H Orthodontics and Viant Medical, where he led large-scale operations and played a central role in a $1 billion acquisition integration. He began his career at Meritor (previously Arvin Industries), where he became a certified Toyota Production System trainer, delivering more than 400 hours of lean manufacturing workshops.

“I’m excited to join Modular Devices and help build on its strong foundation of innovation and growth,” said Wemhoff. “Every operational improvement we make ultimately supports better patient outcomes and increased access to innovation, and I look forward to working with this team to expand our impact.”

About Modular Devices

Modular Devices is the leading provider of mobile medical imaging and modular cleanroom solutions, delivering turnkey, code-compliant facilities to hospitals and healthcare facilities, life sciences, advanced manufacturing, and other highly regulated industries. With more than 35 years of experience, Modular Devices offers mobile cath, IR, EP, MRI, CT, and biplane labs, as well as USP-, cGMP, and ISO-compliant cleanrooms that can be rapidly deployed, validated, and operational in days. Backed by in-house engineering, design, manufacturing, and installation teams, Modular Devices and its family of companies help clients overcome infrastructure challenges with reliable, flexible, and customer-focused solutions that ensure continuity in care and compliance without the delays of traditional construction. Additional information available at www.modulardevices.com.

About O2 Investment Partners

O2 Investment Partners is a Midwestern based private equity firm that seeks to invest in lower middle market B2B services, technology, and select industrial companies. The firm invests in businesses with earnings growth potential and a clear path to the creation of shareholder value. O2 invests with a view toward partnering with management to build and grow the business and take it to its next stage of development. This requires not only a clear vision and strategic plan to create shareholder value, but a close partnership and alignment of interest with management. Additional information available at www.o2investment.com.