Portfolio Strength

Our family of nine companies is a strong and diversified portfolio that we plan to own and grow long-term. Across the next decade and beyond, we will be adding to our portfolio when retiring owners of great Minnesota companies choose us as the long-term, majority owner and stewards for their legacy and stakeholders. We invest in great management teams and people in Minnesota companies that are established, growing, and profitable niche leaders in national or global markets. In addition to adding new platform companies in Minnesota, we will also continue to actively invest in strategic add-on acquisitions that grow our existing platform companies, bringing complementary talent, technologies, products, services, customers, markets, and/or global reach.

We take the long view

Our objective is to sustain Granite Equity for 100 years and more to 2100 and beyond.


Aeration Industries | Chaska, MN

Todd Schroeder, CEO

For over 40 years, Aeration Industries International has been a leader in solving a wide range of water and wastewater treatment problems. Their product lines include customized oxidation ovals, package plants, surface aerators and mixers to meet the strictest permit standards in the world. aireo2.com

All Flex | Northfield, MN

Greg Closser, CEO

Founded in 1991, All Flex has emerged as the leading provider of specialty flex circuits and value-add assemblies. All Flex flexible circuits can be found in many applications and markets including medical, military, instrumentation, aerospace, industrial and telecommunications. allflexinc.com

Altimate Medical | Morton, MN

Todd Tholkes, CEO

Altimate Medical, Inc. designs and manufactures a full line of adult and pediatric sit-to-stand devices, which are used to serve patients with indications such as spinal cord injuries, paralysis, multiple sclerosis and cerebral palsy. The company, operating under the industry leading “EasyStand” brand, has grown consistently for more than 20 years, with sales in more than 30 countries. easystand.com

DeZURIK | Sartell, MN

Bryan Burns, CEO

DeZURIK is the innovative global leader in valve technologies for water and wastewater treatment, as well as industrial applications including pulp and paper, chemical and petrochemical, power, mining and other process industries. Recognized worldwide for high quality and superior performance, DeZURIK products increase accuracy, durability, reliability and customer profitability. dezurik.com

GeoComm | St. Cloud, MN

John Bryant, CEO

GeoComm is a leading provider of geographic information and communication systems to emergency 911 call centers across the United States. GeoComm currently serves more than 800 emergency 911 call centers, helping to keep more than 84 million people safe. Today, GeoComm has a national reputation as a leading provider of geographic information and communication systems. geo-comm.com

GEOTEK | Stewartville, MN

Ben Wiltsie, CEO

For over 25 years, GEOTEK has been an internationally recognized designer, manufacturer and distributor of reinforced fiberglass pultrusion products for the electric utility and animal containment markets. Today, GEOTEK is the leading provider of fiberglass crossarms in North America. geotekinc.com

Massman Automation | Villard, MN

Jeff Bigger, CEO

A leader in the design and manufacturing of precision automation machinery, Massman Automation Designs has been providing innovative packaging systems for over 35 years to a wide variety of industries. From liquid filling to case packing to palletizing, Massman has solutions for a wide range of automation needs. massmanllc.com

Microbiologics | St. Cloud, MN

Brad Goskowicz, CEO

Founded in 1971, Microbiologics offers the largest and most diverse line of ready-to-use quality control microorganisms, which are sourced from the world’s leading culture collections, packaged in convenient and valuable formats and expediently delivered to more than 100 countries throughout the world. microbiologics.com

Vector | Fergus Falls, MN

Jeff Ackerson, CEO

Vector has manufactured and distributed a market-leading line of vinyl windows and patio doors, serving dealers and builders throughout the Upper Midwest. Since 1985, Vector has been committed to providing customers with unparalleled service and exceptional craftsmanship. vectorwindows.com