Biographies
Dave Becker
W18111 Prairie Road East
Osseo, WI 54758
Phone: 715-695-2775
Mike Cypher
26443 461st Ave.
Hartford, SD 57033
Phone: 605-941-5595
Jeff Sluzewski
332 Kiana Ct
River Falls, WI 54022
Phone: 608-576-5162
Peter Oehler
1885 Whistling Straits Dr.
Altoona, WI 54720
Phone: 608-250-0110
Dan Wenzel
1403 Pinewood Court
New London, WI 54961
Phone: 920-982-6274
Brian Dolski
E2655 Rocky Court
Kewaunee, WI 54216
Phone: 920-255-5992
Dave Becker
Dave is a founding partner in the Dairy Business Consulting group. Since 1988, Dave has been involved in providing extensive individualized consulting to owners of dairy operations. These services include detailed business plans, monitoring and analysis, benchmarking, expansion planning, transition planning and workout scenarios. Dave finds a key element in his consulting services is being present on the farm for meetings with owners and working together with other support professionals involved in the dairy operation.
Dave graduated from the University of Minnesota with degrees in Production Agriculture, Agricultural Education/Farm Business Management. He taught high school agriculture for four years before joining Land O’Lakes in 1988. Dave spent the first four years with Land O’Lakes in the area of nutrition consulting and sales and then became part of the Dairy Business Services group which provided fee based consulting to dairy operations in the areas of nutrition, expansion planning, business budgeting and monitoring, employee management and milk quality services. In 2003, Dave left Land O’Lakes and started Dairy Business Consulting, Inc. where he continues to provide consulting services to a broad range of dairy operations focusing on business management services.
Dave is a member of Professional Dairy Producers of Wisconsin (PDPW) and of Dairy Business Association (DBA). Dave has been involved in speaking engagements to various agricultural organizations on farm management related topics. He and his wife Peggy, along with their children, live near Osseo, Wisconsin.
W18111 Prairie Road East
Osseo, WI 54758
Phone: 715-695-2775
Mike Cypher
Mike is the owner/manager of Cypher Dairy Consulting, LLC in Hartford, South Dakota. He brought over 30 years of experience in the dairy industry to the group when he joined Dairy Business Consulting in 2007. Mike provides his clients with financial planning and monitoring, cost of production analysis, facility design and use, labor management, marketing, on-farm accounting applications, production management, and transition to the next generation planning.
Mike earned his Dairy Science degree from South Dakota State University. He began his career as an Extension Agent for the South Dakota Extension Service. Mike then took a position with Land O’Lakes in Milk Quality as a Dairy Field Rep. He was in this position for six years, three of those years having been a Milk Receiving Station Manager. Mike then spent six years as a Dairy Production Consultant (nutrition consulting) and then over 20 years as a Dairy Business Specialist. Mike retired from Land O’Lakes and started Cypher Dairy Consulting, LLC in 2007.
Mike’s accomplishments include the planning, design, and completion of dairies ranging in size from 350 to 1800 cows. He currently works with herds from 350 to 2,000 cows. Mike also is a Large Herd Professional, being a graduate of the “Hands-on” Large Herd Professional Dairy Training Program.
Mike is available for speaking engagements and producer meetings. He is on the Board of Directors for South Dakota Dairy Producers, and is a member of the Minnehaha County Planning and Zoning Commission. He is also a member of the Professional Dairy Producers of Wisconsin (PDPW). Mike lives with his wife Eileen in Hartford, South Dakota, and has three sons and three grandchildren.
26443 461st Ave.
Hartford, SD 57033
Phone: 605-941-5595
Jeff Sluzewski
Jeff has been a professional in the dairy industry for over 25 years. He is the owner of JMS Dairy Business Consulting, LLC and is an original partner of the Dairy Business Consulting group. Jeff prides himself on his ability to establish strong ongoing relationships with his clients. Many of his existing dairies began as expansion projects that transitioned into ongoing business consulting clients. Jeff provides his producers with forward business planning, including balance sheets, cash flows, animal projections, feed budgets, marketing, capital purchases, benchmarking, and assistance in transition planning, all being geared toward the direction and goals of the dairy. He is an active part of monthly on-farm meetings involving bankers, vets, nutritionists, and agronomists.
Jeff graduated in 1986 from UW River Falls with a Bachelor of Science degree in Animal Science/Dairy Emphasis and a Farm Management minor. He worked for Land O’Lakes as a Livestock Production Specialist for two years, and then held a similar position with Pine Island Farmers Elevator in Pine Island, Minnesota for eight years. In this position, he was responsible for on-farm sales and consulting on dairy feeds. In 1996, Jeff returned to Land O’Lakes as a Dairy Business Associate. This consulting position included expansion planning, engineering, construction management, and new facility start up. From 1999-2003, Jeff worked as a Dairy Business Specialist, expanding the above position to include financial feasibility, business planning, and labor management. Jeff left Land O’Lakes in 2003 and started JMS Dairy Business Consulting, LLC. He works with 25-30 dairies ranging in size from 250 to 1800 cows.
Jeff is a member of the Dairy Business Association (DBA) and the Professional Dairy Producers of Wisconsin (PDPW). He enjoys reading, hunting, fishing, and golfing. Jeff and his wife Mary live in Belleville, Wisconsin. They have two adult sons.
332 Kiana Ct
River Falls, WI 54022
Phone: 608-576-5162
Dan Wenzel
Dan is a founding partner of the Dairy Business Consulting group. He has been working in the dairy industry since 1986 and has been a consultant working with large modern dairies since 1990. Dan provides financial and business management services to dairy farms including budgeting and monitoring, analysis, benchmarking, expansion planning, workout scenarios, and expert witness consulting. He also helps his clients with on farm communication, farm transfer preparation, and advisory team meetings.
Dan was born and raised on a dairy farm in Manitowoc County, Wisconsin. He graduated with honors from the University of Wisconsin – Madison with a Bachelor of Science Degree in Dairy Science and Agricultural Economics. From 1986 to 1990 Dan was a nutritionist with Land O’ Lakes. From 1990 to 1999 he focused on financial and production consulting for Land O’ Lakes and in 1999 he became a Dairy Business Specialist in the Dairy Development Department. In 2003, Dan left Land O’ Lakes and started Wenzel Dairy Business Consulting, LLC which he owns and operates today. Currently, Dan works with about 40 contracted clients on an ongoing basis in the area of financial and business management. He has worked with some of the same clients for almost 25 years.
Dan is member of the Dairy Business Association (DBA), Professional Dairy Producers of Wisconsin (PDPW), and the Wisconsin Association of Professional Ag Consultants (WAPAC). He has also been very active in his community. He has spent several years on the Most Precious Blood School Board. Dan has coached all levels of boys and girls youth basketball for over 25 years and was a founding member of the boy’s New London Fast Break Basketball Club and the New London Girl’s Youth Basketball Association. He was a volunteer youth basketball league commissioner for many years and grew the league to over 1100 youth participants. In addition, he has spent many years coaching AAU basketball with players from throughout the state of Wisconsin at the high school and middle school level. Dan resides in New London, WI with his wife Tracey and their three children.
1403 Pinewood Court
New London, WI 54961
Phone: 920-982-6274
Peter Oehler
Peter grew up in Saint Paul, MN, and after high school he decided to become a dairy farmer. He enrolled in ag school in Waseca, MN and received an Associate Degree in Dairy Science. Over the next decade he became a herdsman, a partner in a 60-cow dairy, and then rented a 160-acre dairy, owning his first herd of 60 cows. Peter then decided to go back to school and finish his four-year degree in Ag Business and Nutrition at the U of M. After he received his degree, he worked for Land O Lakes and Private Premix Companies for the next 13 years. In 2000, he decided he needed additional training, so he moved to Visalia, CA to become a controller/manager for a 10,000-cow dairy. For family reasons, he decided to move back to WI where he worked for Cargill the next 3 years. Peter has been a private dairy and financial consultant to area dairies since 2008.
Peter is a member of Professional Dairy Producers of Wisconsin (PDPW) and Dairy Business Association (DBA). Peter and his wife Jackie have three grown daughters and live in Altoona, WI.
11885 Whistling Straits Dr. Altoona, WI 54720 608-250-0110
Brian Dolski

Brian recently joined Dairy Business Consulting group in 2025. He graduated in 2006 with an accounting degree from UW-Green Bay. Early in his career he worked as a credit analyst for a large energy company where he performed financial analysis on commercial and industrial customers. During that time he completed the University of Houston’s graduate program in risk management. After graduating in 2008 and getting his Series 3 license he got a job as a natural gas trader managing storage and transportation assets in the upper Midwest and Canada.
In 2010 Brian pursued an opportunity to work in the compressed natural gas (CNG) business which was an emerging market at the time. A major portion of his role was procuring renewable natural gas (RNG) from landfill and dairy anaerobic digester (AD) projects to sell as vehicle fuel. In 2017 he left to take an asset development role in the renewable energy space, working for a company that built and operated anaerobic digesters processing food waste. In both his CNG and AD roles he was responsible for creating pro forma budgets, analyzing economic feasibility of new projects, and being a key member on the leadership team.
In 2019 Brian joined a large dairy operation as Chief Financial Officer. He oversaw financial reporting for six businesses: two dairies over 6,000 cows each, a 12,000 head heifer raising entity, a 15,000 acre cropping entity, a trucking entity, and a cheese manufacturing entity. This included budgeting, accrual profit and loss, fixed assets, management reporting, and treasury functions. During that 6 year time he helped close 4 strategic acquisitions along with a large expansion project to grow the milk herd from 8,500 cows to over 12,500 cows. He overhauled and created a robust risk management plan, executing hedging strategies that created significant value to the bottom line while reducing exposure to volatile commodity prices. He worked closely with key vendors such as lenders, CPA reps, insurance reps, consultants, and nutritionists. His background in accounting, financial analysis, commodities, risk management, and sustainability provides him with a broad knowledge base to add value to his clients operations.
Brian grew up and currently resides in Kewaunee, WI with his wife and three children. He enjoys deer hunting and watching his kids’ sporting events. He also is a board member for Kewaunee Health and Fitness, a nonprofit organization.
E2655 Rocky Court Kewaunee, WI 54216 Phone: 920-255-5992

