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About LCS

Engineers who have been immersing electronics since 2006

LiquidCool Solutions is based in Rochester, Minnesota. We design and build sealed, liquid-immersion systems for servers and industrial computers.

2006

Began work on liquid immersion cooling for high-performance gaming systems.

2012

Turned the technology toward servers.

Today

Builds rack-based immersion systems for data centers, edge, and harsh environments, with a portfolio of patents in chassis-based single-phase immersion.

Our engineers and technicians bring careers from companies including Dell, IBM, HP, Cray, Silicon Graphics, and Western Digital. We’re Midwestern to the core, practical, direct, and committed to the people we work with. When you’re ready for liquid cooling, we aim to help you decide whether it fits, and to engineer it properly if it does.

Former employers are listed as career history only and do not indicate a customer or partner relationship.

Our team

Leadership

Portrait of Ken Krei

Ken Krei

CEO | Board Chair

Ken has spent his career as an executive in technology and financial services companies. Alongside his roles at LiquidCool Solutions, he serves as Vice-Chair of TMI Holdings, Inc.

He previously held executive roles including EVP, Wealth Technologies at FIS; EVP, BMO Global Private Bank; Chair of M&I Wealth Management and Capital Markets; EVP, Wealth Management at Fifth Third Bank; SVP, Capital Markets at Bank of America (Continental Bank); and VP in Derivative Products at Citicorp.

Ken is Board Chair of Milwaukee Film, a former Board Chair and President of the Milwaukee Art Museum, and a former board member of 88Nine Radio Milwaukee.

Portrait of Rick Tufty

Rick Tufty

VP, Engineering | Chief Technology Officer

Rick's career as a technologist, manager, and engineering executive spans several major technology companies. He was Executive Director of Engineering for Dell's Enterprise Division, responsible for server, blade, and storage product development.

He also served as Senior Director of Engineering and Corporate Research Fellow at Maxtor Corporation, leading high-performance SCSI storage and emerging technology development, and held executive and technical leadership roles at Western Digital, Hewlett-Packard, and IBM.

Rick holds 14 patents and has authored numerous papers on data storage and computer technology.

Portrait of Brian Casey

Brian Casey

Chief Operating Officer

Brian joined LCS in October 2025 after four decades in development, strategy, and growth roles. He previously led the Industrial & Smart Energy segment at Celestica, a global electronics manufacturing services provider.

Before Celestica he held three leadership roles at Honeywell, led Rockwell Automation's Global Process Transformation Program and its Kinetix motion-control business, and held management roles at Comtrol, Eaton, and Schneider Electric, including four years in France.

Brian holds a BSEE from the Milwaukee School of Engineering, is a senior member of ISA, and has contributed to IEEE 802, ISA S88, and IEC 61131 standards work.

Our team

Engineering & operations

Portrait of David Roe

David Roe

Program Manager

David manages LCS research and development projects. He joined LCS in 2010 after a 30-year career at IBM, where he was an Executive Project Manager for multi-million-dollar projects in the Systems and Technology Group.

He holds a Master of Arts in Mathematics from the University of Wisconsin.

Portrait of Daryl Lautenschlager

Daryl Lautenschlager

Engineering Analyst

Daryl spent more than 25 years at IBM as an engineer, lead engineer, and manager, working on hardware quality for System/36 and System/38 and software development for 14″, 5.25″, and 3.5″ hard disk drives, and served as customer interface for drive integration and testing.

He was also a lead engineer in Hitachi's System Integration Test Lab.

Portrait of Tim Ronning

Tim Ronning

Senior Lab Technician

Tim is an engineering technician with more than 30 years of experience. At IBM, Western Digital, and JDSU he provided manufacturing and field support and performed failure analysis to raise yields.

As Lead Manufacturing Technician for Hardcore Computer, he helped launch the Reactor, ReactorX, and Detonator liquid-submerged computer systems. He has been with LCS since 2014.

Portrait of Steven M. Shafer

Steven M. Shafer

Senior Packaging Engineer

Steve spent more than 20 years designing mechanical and electrical packaging for high-performance computers, including Cray Research's T3D, T3E, Y-MP, and C90 supercomputers, and SGI's Origin 200 and Origin 2000 systems.

He later served as Lead System Integrator at United Defense and BAE Systems on packaging for the Army's XM1203 Non-Line-of-Sight Cannon, and has worked at Lockheed Martin and Hutchinson Technology.

Portrait of Sean Archer

Sean Archer

Mechanical Engineer

Sean works on LCS mechanical, fluid, and thermal solutions. He began by designing and testing server cooling units and control systems and now runs performance simulations to speed development.

He holds a BS in Automotive Engineering Technology from Minnesota State University.

Portrait of Gary A. Reed

Gary A. Reed

Principal Electrical Engineer

Gary earned an Electrical Engineering degree from Pennsylvania State University and spent ten years developing high-altitude SIGINT systems at E-Systems/Raytheon.

He has since helped start-ups bring products to market, including ViA (wearable PCs), SpeechGear (the Endurance speech-to-speech translation tablet), ForeverBulb, and Hardcore Computer / LiquidCool.

Portrait of Rafael Alba

Rafael Alba

Electro-Mechanical Design

Rafael is LCS's go-to for electro-mechanical work: he designs parts, manufactures them, and programs the electronics. His home machine shop has produced many LCS prototypes.

Before LCS he designed for Micro-Trak Systems, programmed for Windland Electronics, and provided electro-mechanical and circuit-board design for SPX Corporation.

Our team

Board & business development

Portrait of Chad E. Cape

Chad E. Cape

Business Development | Board Member

Chad leads business development, drawing on relationship-management experience supporting middle-market and large corporate clients at JPMorgan Chase.

Earlier, he earned nuclear engineer certification in the US Navy's submarine force, where he developed an appreciation for thermal management. He has held a Series 7 license and managed an early-stage investment network.

Portrait of Steven Einhorn

Steven Einhorn

Board Member

Steve has spent 25 years in mergers and acquisitions, the last 15 as a partner in Capital Midwest Fund, a venture fund focused on Midwestern technology.

He holds an MS in chemical engineering from Brooklyn Polytechnic Institute (now NYU) and a BA in chemistry from Cornell, and attended Wharton Graduate School.

Portrait of Herb Zien

Herb Zien

Board Member, Vice-Chair

Herb co-founded and built what LCS describes as the largest privately held district energy company in the US. He brings expertise in engineering, power generation, and energy conservation, and writes and speaks frequently on data center and immersion cooling.

He holds a BS in Mechanical Engineering and an MS in Thermal Engineering from Cornell University, and an MS in Management from MIT.

Next step

Let’s solve your cooling challenge.

Tell us about your workload, site, and timeline. An LCS engineer will help you assess whether rack-based immersion fits your infrastructure.