Onesource Distribution is a wholesale distributor of candy, tobacco, snacks, beverages, paper goods and janitorial supplies.

We specialize in offering thousands of name brand products and delivering them right to your business at wholesale prices.  Our customers get the buying power of a large company and are always treated with great importance.

Thank you for visiting us!

Our Team

Diane “Di” Sperling
Diane “Di” SperlingOwner/Operator of Onesource since 1995
Diane is a Michigan City native. “Growing up in Michigan City was fantastic but living here as an adult is even better. I am so blessed to have been able to make a life for myself and my family in this great city”. Diane graduated from Purdue with a Bachelors of Science in Restaurant and Hotel Management. After working several years in the hospitality industry, the opportunity arose to purchase a small company called City Service Wholesale. That company has grown into Onesource Distribution (renamed in 2000). The company has grown by adding new product lines and expanding the geographical sales territory. Diane loves running a small business. She especially enjoys the abundant opportunities of meeting and getting to know all kinds of individuals; customers and vendors alike. Only one thing beats the challenge and enjoyment of running a business right and that’s spending as much time with the family as possible, especially at the beach.
Harrison “Harry” Holtkamp
Harrison “Harry” HoltkampEmployed at Onesource since 1997
Harry is a Michigan City native. He started as a Driver at Onesource in 1997. He became the Warehouse Manager in 2000 and finally Director of Operations in 2005. He is driven at work every day by one goal and that goal is total customer satisfaction. He’s the best right-hand person one could ask for. Just ask him! That reminds me; his wit is unmatched. He keeps things light in the office with his humor but naturally keeps his nose to the grind every day to get things done. During his time away from work he volunteers as the Director of Interfaith Community Pads. This program provides food and shelter for any man, woman or child who is in need on a nightly basis in Michigan City. He has been a volunteer for this organization for almost 20 years.
Erica “The queen of task management” Menn
Erica “The queen of task management” MennEmployed at Onesource since 2008
Erica is a Chesterton native. She worked for the company where we banked so we got to experience her incredible level of customer service for months before hiring her for ourselves and our customers. Needless to say we stole her from the bank (we did ask permission first). Erica is our Office Manager and top customer service agent. Erica has this natural inner drive to want to make each customer feel like they are the most important one. She is special for many other reasons. She spends her time off from Onesource working with kids who are challenged, caring for rescue animals and taking great care of herself as she is a 5 ½ year brain cancer survivor!
Leroy “Leroy Brown” Reagor
Leroy “Leroy Brown” ReagorEmployed at Onesource since 2011
Leroy is a Michigan City native. He is the main man behind the wheel. He is our Driver Manager with a perfect driving record and loves to be on the road. He is the most conscientious warehouse/driver employee Onesource has ever had. His attention to detail is a perfect balance of getting things done and doing it effortlessly. Leroy is an avid dart player, he enjoys music, especially rock n roll, and he enjoys singing at local weekend karaoke venues. Leroy loves the Steelers and would love for everything in life to remain “status quo”. That’s what puts a smile on his face. He is an overall very easy-going guy unless you bring up conspiracy theories.
Don “The Postman” Antisdel
Don “The Postman” AntisdelEmployed at Onesource since 2015
Don Antisdel is a Michigan City native. He was a U.S. Marine for five years. Thank you Don! He has worked for the United States Postal Service for 37 years as a supervisor. We are still trying to figure out how to get free stamps out of him. He works part time for Onesource as our Logistics Manager. If your order is not being delivered to you in a Onesource vehicle, Don is in charge of getting that shipment to you. Don enjoys playing golf, watching football especially the Cowboys and has one of the most positive attitudes around.

A Personal Note From Diane

I am very thankful for all of the blessings in our lives over the past 25 years of owning Onesource Distribution.  It’s always important to stay grounded in what is truly important.  Our wonderful families (work and biological), our customers (who are like family to us), relationships and faith keep us optimistic during the turbulent times and the best of times.  I can speak for everyone at Onesource when I say that we thank you for entrusting the care of your business purchases with us.  It is not a relationship that we take for granted and we appreciate your continued confidence in our operation.

Although many products are offered on our website, our options are almost limitless! Please E-mail or Call with any questions or requests.

CALL US (219) 872 0699