Staff

John-Grettenberger

John Grettenberger, Jr.

Chief Executive Officer

John Grettenberger Jr., the grandson of LorAnn Oils Founder O.K. Grettenberger, started his full-time career at LorAnn in 1993 as General Manager.

Growing up, John lived in numerous locations throughout the United States, and the world, following his father’s career with General Motors. International homes included Tokyo, Japan and Koenigstein, Germany.  After graduating from The Frankfurt International School in Germany. John attended The University of Michigan in Ann Arbor where he played baseball and met his wife Sandy. After graduating with a BBA, John returned to the U of M to earn his MBA.  His first career path was with General Motors Corporation in a variety of sales and marketing positions in Detroit and Chicago.

John stays active in the community. He’s a Lansing Rotarian and past president and is the Board Chairman for The Dart Bank.   John formerly served as a member of the Board of Directors of the Sparrow Hospital Foundation as well as the Impression 5 Science Center. He enjoys spending time with family as well as golfing, biking, cooking, traveling and generally eating great food. 

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John Henighan

President

John grew up on a small family farm in upstate New York and had the pleasure of attending a Catholic-military High School. He joined LorAnn Oils as President in 2020 after having spent 6 years in manufacturing leadership at a major contract furniture company in west Michigan.  Prior to this, John served 20 years as an Officer in the U.S. Coast Guard, holding a variety of operations and leadership roles in the United States and overseas. His final position, one that brought his “Yooper” wife back to Michigan for the first time in 20-years, was as Chief of Logistics at Coast Guard Sector Detroit. In-between Coast Guard stints, John spent time in pharmaceutical sales and manufacturing.

John holds a BS in Economics and Management from the United States Coast Guard Academy and an MBA from the University of Michigan. He is an avid fitness buff and nascent foodie.

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Carl Thelen

Vice President

Carl joined LorAnn Oils in 1993 after leaving a career as a manufacturing engineer at General Motors. At LorAnn he is actively involved in the production and scheduling activities of the organization. “It is very exciting to be part of a growing, family owned and operated business." Carl received a Bachelor of Science degree in Packaging Engineering with a minor in business management from Michigan State University. Spending time with his wife Beth and their two beautiful daughters has been his single biggest thrill in life.

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Ron Wood

Chief Operating Officer

Ron joined LorAnn Oils in 2018 after 20+ years in Operating Management, including 15 years in the Marketing and Analytics industry.  At LorAnn, he is charged with overseeing day-to-day production and business operations. As Ron likes to say, "I feel so fortunate to have found Lorann Oils. It is a pleasure knowing that every day we are accomplishing great things." At home, Ron enjoys spending time with his wife Jennifer and their four children. He is also fond of riding his mountain bike on the trails and backroads of mid-Michigan, then refueling with an ice cold Michigan brewed beer!

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Lee Anne Jackard

Regulatory Manager

Lee Anne joined LorAnn Oils in 2013 as the Regulatory Manager. Her passion in food safety and quality assurance led LorAnn’s efforts in becoming Safe Quality Food (SQF) certified. Under her stewardship, the program has been very successful; holding an Excellent 98 % rating. Lee Anne is a Michigan State Spartan grad, where she obtained a Bachelor of Science in Building Construction Management. When not focused on providing the highest quality of products and service at LorAnn, Lee Anne enjoys traveling and spending time with her family, often cheering on her four children at sporting events with her husband Jake.

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Troy Sprague

National Sales Manager

Troy Sprague has been LorAnn Oils’ National Sales Manager since 2002. He has spent over 35 years in both Pharmaceutical and Consumer Packaged Goods Sales. He is responsible for sales, marketing and partnership with key wholesale accounts. Troy holds a Bachelor of Science in Food Marketing from Western Michigan University. Troy enjoys time spent with his family most. He is an avid outdoorsman enjoying time in the woods, fields and streams of Northern Michigan. Troy and his wife Karen have three children and live in Holt, Michigan. 

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Heidi Greyerbiehl

Business Development Manager

After spending 20 years in the salon and theater world, Heidi joined LorAnn in 2017 as a customer service representative. Since then, she changed roles to business development manager, taking Heidi back to her creative roots. Heidi is always excited to explore ways to bring LorAnn products to new businesses. She assists with marketing efforts, writing engaging content, and building strong relationships with our many wonderful customers. In her spare time, Heidi likes to spend time with her friends running absurd distances and eating good food.

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Sandy Grettenberger

E-Commerce Director

Sandy began her career at LorAnn Oils in 1997 as a company spokesperson and product demonstrator appearing on various television programs across the country. Over the years, her role has expanded to include all aspects of marketing for LorAnn including customer communications, website development, internet advertising, social media, product testing, recipe development, and website photography. Sandy attended Babson College in Wellesley, MA, as well as the University of Michigan Business School where she earned a BBA. She has been involved with several philanthropic organizations including the Junior League of Lansing and the Lansing Symphony Orchestra. She is an avid golfer and enjoys spending time with her two daughters and husband, LorAnn CEO John Grettenberger, Jr.

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Mandy Denomme

Marketing Communications Manager

Mandy is an experienced digital marketing and communications professional with a passion to share brands’ voices across their digital platforms to develop world-class brand recognition—and sales! Mandy's niche in food marketing came after developing digital content strategies for the famous Red SOLO® Cup; five years later her career path continues in the food and beverage industry; managing top down marketing campaigns in the digital, social and influencer world. In addition, Mandy has written pieces for major publications, including Conde Nast’s Glamour Magazine, REVUE West Michigan Magazine, Greater Lansing Business Monthly, and more! Mandy is a #LoveLansing gal and when not crafting campaigns, she loves spending time with her family and fiancé, going to shows and musicals, visiting MI wineries, and sweating out her 8-counts in Barre (dance).

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Ryan Roberts

International Sales Manager

Ryan joined LorAnn Oils in 2020 after having spent years in various supply chain and commodity sales roles. Prior to joining LorAnn, Ryan managed commercial sales of bananas for some of the world’s largest retail companies. Ryan grew up in Mid-Michigan and attended Michigan State University, where he completed his Bachelor’s degree. In his free time, he enjoys all things Detroit sports, golfing with his twin brother, travel, and most importantly spending time with his fiancé & their two dogs.

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Robin Murphy

Customer Service Manager

Robin joined LorAnn Oils in 1996, took some time off to start a family, then returned in 2010 as a Customer Service Representative.  She had the privilege of working with Joseph in the International Department before accepting the position of Customer Service Manager.  She has worked in customer service throughout college and previous positions.  Robin enjoys spending time with her husband and family as well as biking the great outdoors. 

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Beth Thelen

Director of Technical Services

Beth is one of the granddaughters of LorAnn Oils' founder O.K. Grettenberger and worked at LorAnn off and on through high school and college.   She came back permanently after moving back to the Lansing area in 1991. Beth has a B.A. in Communications from Michigan State University.  She spends her free time with her two beautiful daughters and husband Carl, at horse shows, car shows, or skiing in northern Michigan in the winter.  When home, she can be found in the barn with her horses, mini donkeys, llamas, and dogs.

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Laura Perniciaro

Business Manager

Laura, also a granddaughter of O.K. Grettenberger, has worked at LorAnn Oils in many various capacities throughout high school and college.  Now, as Business Manager, she focuses primarily on Accounts Receivables and collections, and is also the main contact for EDI accounts.  Outside of work, Laura and her husband Chris enjoy showing Quarter Horses throughout the United States and Canada.  She also inherited her grandparents’ love of harness racing and continues to raise and race Standardbreds in the O.K. Grettenberger tradition. 

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Barbara Gillett

Information Technology Manager

Barbara joined LorAnn Oils in early 2016 as Information Technology Manager bringing and enjoying over 20 years’ experience in the IT arena. She is degreed in IT, specializing in system Information, process improvement and trouble shooting.  She often comments on how much she enjoys the camaraderie, professionalism and cooperation she receives from management and her family of co-workers.  Originally from the Brighton/Howell area and time spent living all over the Midwest, she and her husband jokingly admit that it only took 22 years to get back home to Michigan, she loves “her” Great Lakes. She worships her seven grandchildren and travels frequently for spoiling rights.  In her down time she’s enjoys golfing, camping or designing and making projects in her sewing room with her Computerized (of course) Sewing Machine.