GRAND RAPIDS, MI –​ NuVescor Group is pleased to announce the successful sale of KEM Enterprises, Inc., of Ada, Mich., manufacturer of the Osto-EZ-Vent®, to individual investor Chris Blanker, owner of Michigan Instruments. Terms of the transaction were not disclosed.  

KEM Enterprises, Inc., founded in 1996, manufactures and markets the trademarked Osto-EZ-Vent®, a medical device that allows ostomy patients to quickly and easily release built-up air pressure in their ostomy pouches. The long-established, well-recognized brand is sold throughout the U.S. and internationally, including Canada, the UK, the EU and Japan, through long-standing relationships with nearly two dozen medical supply companies. 

Aaron James, grandson of the product’s inventor, Hans Butterwegge, has owned and operated KEM Enterprises, Inc since taking over from his mother, Kellie Laine, who founded the Company. James said finding a buyer who understood and valued what the Osto-EZ-Vent® means to the people who rely on it every day was central to the decision to sell. 

Blanker, who also owns Michigan Instruments, a Grand Rapids-based manufacturer of medical related devices, said the acquisition strengthens his portfolio of businesses built around meaningful patient outcomes. He plans to keep production and operations rooted in West Michigan, building on the brand loyalty the Osto-EZ-Vent® has earned over nearly three decades. Blanker was advised in the transaction by Dan Duba of Calder Capital. 

“It is always rewarding when the right fit with the buyer is found,” said Travis Ernst, M&A Advisor at NuVescor Group. “In this case, it was very important for the buyer to place such a high value on the end user of the vent. The success of this deal impacts the local vendors, employees and community since it is all remaining here in West Michigan.” 

 Ernst and Brad Quick, a Med Tech Advisor at NuVescor, represented KEM Enterprises, Inc in the transaction. 

About KEM Enterprises, Inc. 

Based in Ada, Mich., KEM Enterprises, Inc. manufactures and markets the Osto-EZ-Vent®, a trademarked medical device that provides ostomy patients with a simple, reliable way to release built-up air pressure in their ostomy pouches. The vent attaches to any manufacturer’s pouch and is registered with the U.S. Food and Drug Administration. For more information, visit kemonline.com. 

 About Chris Blanker and Michigan Instruments 

Chris Blanker is an individual investor and owner of Michigan Instruments, a Grand Rapids-based manufacturer of medical related devices used by clinicians and researchers worldwide, including Automated CPR machines and lung simulation equipment. For more information, visit michiganinstruments.com. 

About NuVescor Group 

NuVescor Group, based in West Michigan, is a distinguished mergers and acquisitions service company that partners with other professional service providers to provide the full array of disciplines needed to have successful and timely business transactions. NuVescor utilizes a proprietary proven process that greatly increases the success rates for business transactions as well as the customer experience. For more information, visit nuvescor.com. 

View Completed Transactions 

GRAND RAPIDS, Mich. – December 10, 2025 – NuVescor is pleased to announce the successful sale of CD Tool & Gage, based in Walker, Michigan, to Kingdom Impact Capital, a faith-based investment group committed to preserving jobs for the employees of the businesses they acquire while making a positive difference in their communities. 

CD Tool & Gage built a strong reputation over more than two decades in West Michigan for delivering high-quality fixtures and special tooling to customers across the automotive and industrial sectors. 

Kingdom Impact Capital specializes in acquiring small-to mid-sized companies with long standing community roots. The group’s approach centers on empowering employees and giving back to the communities they serve, while supporting sustainable growth. The acquisition of CD Tool & Gage aligns with their mission to invest in order to preserve Michigan manufacturing businesses. 

“CD Tool & Gage represents the kind of organization we are honored to partner with—one that values its people as much as its products,” said Randy Rua.  

The transaction was facilitated by NuVescor, a mergers and acquisitions firm based in Grand Rapids, Michigan, specializing in helping privately held companies achieve successful ownership transitions. 

About CD Tool & Gage 

CD Tool & Gage is a Michigan-based manufacturer specializing in precision tooling and fixture design and production. Their offerings include custom check fixtures, holding fixtures, inspection fixtures, special measuring tools, and more — serving primarily automotive and industrial clients.  

About Kingdom Impact Capital 

Kingdom Impact Capital is a faith-based investment firm focused on acquiring and nurturing small- to mid-sized businesses. The firm prioritizes preserving jobs, developing people, and strengthening local communities through responsible ownership and stewardship. 

GRAND RAPIDS, Mich. – December 10, 2025 – Rua Associates is pleased to announce the successful sale of ProTemp, Inc., of Holland, Mich., to a West Michigan couple. 

ProTemp, founded in 1986, is a commercial and light industrial heating, ventilation, air conditioning and refrigeration business with a nearly 40-year service record of refrigeration repair, equipment replacement, and sales and installation of new equipment. It serves primarily restaurants, bars, grocery stores, gas station/convenience stores, and agricultural operations of all types in the southwestern portion of Michigan’s Lower Peninsula. 

New ProTemp owners Sara and Danny Glemby said they plan to maintain the current staff and add more while building on ProTemp’s track record of quality, honesty and dependability. Their main goal is steady, thoughtful growth – expanding production and capabilities while keeping the close-knit, family-owned feel that makes the Company special. 

Danny Glemby, who has 15 years of experience in the HVAC-R industry, has been a ProTemp employee since 2019. Sara Glemby has extensive experience in administrative roles. 

“Ever since entering the HVAC-R industry in 2010, Danny had aspired to one day own his own company,” Sara Glemby said. “After he began working at ProTemp in 2019, it didn’t take long to see how special this company was.” 

She said the previous owners, Jeff and Karen Koger, “created a great family atmosphere, with strong values, and a great reputation in the community which made it clear that ProTemp was exactly what we had been looking for.” 

“Taking ownership of ProTemp has been such a blessing for our family,” Sara Glemby said. “It’s given us the opportunity to work together toward something meaningful – serving our community while building a future for our children. It also allows us to combine our values, our work ethic, and our faith in a way that we hope will strengthen both our business and our family.” 

The Glembys and Kogers were assisted in the transaction by Rua Associates, a West Michigan mergers and acquisitions company. The Rua team ran a broad process, and ultimately, Jeff and Karen decided that the best buyers to take the company to the next level were Danny and Sara. “We’ve facilitated a number of successful transactions in the mechanical contracting space in the last few years, and the market demand for ProTemp was as strong” said Nick Good, Transaction Advisor for Rua Associates. “Our team’s primary objective in any process is to achieve the expectations of our clients, both from an economic and a legacy perspective. It was fun to see that come together with Danny and Sara.” 

About ProTemp, Inc. 

Based in Holland, Mich., ProTemp provides sales, installation and repair of heating, ventilation, air conditioning and refrigeration equipment to commercial and light industrial customers in the southwestern portion of Michigan’s Lower Peninsula. For more information, visit protemp-hvacr.com. 

About Danny and Sara Glemby 

Danny Glemby, originally from Northwest Indiana, has been in the commercial HVAC-R industry since 2010. He has always loved fixing things and solving problems, and he’s always had high aspirations of one day owning his own business. Sara Glemby, a West Michigan native, has a background in real estate and administration. The couple has three young children – 6-year-old twins and a 4-year-old son – and reside in Jenison. 

About Rua Associates 

Rua Associates, founded in 2010, has been a leader in the mergers & acquisitions industry by aligning the interests of buyers and sellers to enable their personal and financial goals. With years of experience and a proven process, the team delivers excellent results for investors and business owners. Rua Associates has successfully guided hundreds of small business owners through the sales process. For more information about Rua Associates, visit www.ruaassociates.com.