Meet The Team

Welcome to Oxygen Service Company. It’s Our Pleasure to Serve You.

The Oxygen Service Company team serves our customers with a positive attitude, professional manner, and a genuine passion for providing quality service and equipment. After all, service is our middle name. Welcome to OSC.

Meet Our Board of Directors and Executive Team Members

Ryan Diekow's photo

Ryan Diekow

Board Member and President/CEO


Ryan is the Chairman of the Board. He has been with Oxygen Service Company for roughly 20 years, working at numerous levels of the company including plant operations, project management, sales and branch management before moving into his current role. Ryan currently sits on the Oxygen Service Board of Directors and has served on the board for over 10 years. During these years, he has been a key part in working through many issues that typical ESOP’s face, such as Executive Leadership and Board of Director succession planning, creation of repurchase obligation strategies, trustee transitions and strategic business planning. Ryan is proud to be involved with such a strong ESOP company.

Victor Aspengren

Board Member and President of Keltek, Inc.


Victor is the President of Keltek, Inc., a 100% employee-owned company. Keltek is focused on “protecting those that protect us”. He currently serves on 6 ESOP company boards. Victor has been involved with four different ESOP companies as a CEO, HR Director, Business Development Director and employee owner. He is a member of the National Center for Employee Ownership (NCEO), the National ESOP Association, and the Cooperative Charitable Trust employee forum.

Dan Kipka's photo

Dan Kipka

Board Member and Chief Operating Officer


Dan is the Chief Operating Officer of Oxygen Service Company. He is an industry experienced professional with 23+ years of cross functional operations, distribution and supply chain experience. Dan has worked on several continuous process improvement and operational excellence projects for the company. He has been a member of the Leadership Team at OSC since 2013 and has been on the OSC Board of Directors since 2010. Dan serves as the Board Secretary and a member of the Compensation Committee as well as previously serving on the Audit Committee. He has been an integral part of the strategic direction of OSC and its Employee Stock Ownership Plan.

Dan attended St. Cloud State University and St. Thomas University with a focus on Business and Operations. He is also very active in industry organizations including GAWDA where he is a member of the Insurance Trustee committee.

Dan and his wife, Jodi, have two kids. When not at work, he enjoys hunting, fishing, boating, golfing, and watching their kids sporting and school events.

Mac McPhersons' Photo

Mac McPherson

Board Member and Automation and Service Manager


Lyaman McPherson is the Service and Automation Manager at Oxygen Service Company. He is responsible for managing operational and technical aspects of the inside, outside, automation, and robotic service departments. Lyaman previously owned and led Tomac Limited for 25 years where he specialized in project management and hardware/software development to support critical electronic systems in the retail, industrial, and warehouse industries. He has nearly 40 years of experience in electronic design and maintenance, along with 30+ years of business management experience. Lyaman is known for providing solid leadership in achieving timely technical development and deployment while ensuring quality and customer satisfaction.

Ryan Mielke's photo

Ryan Mielke

Board Member and Chief Financial Officer


As the Chief Financial Officer at Oxygen Service Company, Ryan is responsible for all the company’s financial functions including accounting, audit, treasury, corporate finance and ESOP trustee relations. His career spans more than 15+ years of varied experience in financial management, business leadership, corporate strategy and corporate financial planning. Ryan is committed to maximizing long-term shareholder value, ensuring a balance portfolio of growth initiatives, and maintaining a high level of integrity and transparency for OSC.

He earned his Bachelor’s Degree in Accounting from Minnesota State University, Mankato and his Master of Business Administration from the University of St. Thomas. In addition to serving on the Board for OSC, Ryan also serves on the Board for Split Rock Studios. Ryan and his wife, Carla, have two children.

Jim Smiley

Board Member and CEO Advisor at The Bailey Group


Jim is a CEO Advisor at The Bailey Group. He has unique experience in government affairs, transitioning family-owned companies to be professionally managed, and with employee stock ownership plans. With 30+ years of experience in both the distribution and telecommunications industries, Jim has refined his management and consulting skillset. His area of strength is partnering with clients who have an earnest interest in growth and getting the team all pulling in the same direction.

Fred Spiess

Board Member and Outside Sales Representative


Fred was born and raised in New Brighton, MN and is currently an Outside Sales Representative at Oxygen Service Company. He has over 34 years of experience in the industry, and 18 of which have been with OSC. With Fred’s experience ranging from customer service, delivery, dispatch, billing and now outside sales – he has developed a wealth of business knowledge and a true passion for our industry. Fred is proud to be a part of the OSC team!

Tracy McLellan

Tracy McLellan

Vice President of Sales & Marketing


Tracy is the VP of Sales and Marketing for Oxygen Service Company. He has 30+ years of Sales, Sales Management, Marketing and Product Development experience in the welding industry. He started in local distribution in Minneapolis and after 10 years, worked for a full line manufacturer with responsibilities for North America. Tracy also has 10 years of experience working for a wire manufacturer covering the US for national accounts, and a startup abrasives and tool company where he was responsible for Sales and Product Development in Asia, Europe and North America. Tracy has enhanced his welding knowledge and applications with his experience consulting with some of the largest manufacturers throughout the US.

Jeremy Syverson

Jeremy Syverson

Vice President of Gas Operations


Jeremy is the VP of Gas Operations at Oxygen Service Company. He has 20+ years of industry experience, three of which have been with OSC. His industry background comprises of sales, operations and project management with experience in Lean and Six Sigma principles. Jeremy oversees the gas operations at OSC, specifically gas inventory, quality, compliance and safety as well as distribution, logistics and cryogenic installations. He is a member of OSC’s Leadership Team and serves on the ESOP and Safety Committees.

Nicole Hoverson

Human Resources Director


Nicole is the Human Resources Director at Oxygen Service Company, overseeing all things HR. Nicole has 8 years of HR experience, 6 of which have been spent at OSC. Her main priorities include recruitment, onboarding, payroll, benefits, compliance, ESOP administration, culture and training & development for the organization. She is a member of OSC’s Leadership Team and serves as the liaison for the ESOP and Safety Committees.

Our Customers Say We’re Pretty Great

We pride ourselves on servicing you with a customer-focused mindset. Check out what our current clients say about OSC.

The OSC Team’s Five Core Values

The OSC team is committed to living by our five core values:

  1. Getting things done
  2. Professional and respectful behaviors
  3. Customer-focused mindsets
  4. Positive attitudes
  5. Doing the right thing

Company History

The employees at OSC are one of our greatest assets! We all share consistent values of honesty and integrity and truly exhibit the company’s Five Core Values. Open communication fuels and energizes our culture.

With a committee focused on the education, promotion, and encouragement of the ESOP, we maintain an employee-ownership culture, creating accountability as each employee is personally invested in the success of the company with having shares in the ESOP.

Our highly engaged team environment allows OSC’s knowledgeable staff to provide the best customer service to one another and all our customers. Read our full story here on how we became the 100% employee-owned company we are today!

Contact Us Today

Some of our best customer relationships started with a phone call. Give us a ring today, and let’s start our professional partnership.