Products & Produce Pros

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Your demanding customers can count on  SIGMA SALES supply of top-quality produce! We can find most items, but specialize in:

  • Beans
  • Bell Peppers (all colors)
  • Cantaloupes
  • Cucumbers
  • Eggplant
  • Grapes
  • Honeydew
  • Squash (Italian and Yellow)
  • Tomatoes (Romas)
  • Watermelon

For an immediate quote, Contact our VP of Procurement, Sean Barton at 520-281-1900, or email:

Our executive and sales-support team is the cornerstone of our continued success.   Most of our loyal employees have been here for more than 15 years and, along with our seasonal warehouse workers, pride themselves on  a “24/7” service philosophy.  They include:

Michael (Mike) Smith, President and CEO.    Mike Smith brings over 35 years of produce sales and procurement experience to SIGMA.  Prior to acquiring the company in 1994, Mike started his produce career in 1977 as a Produce Buyer for Safeway, Inc .  He then joined for The Wayne Vohland Company where he was Vice President.  From 1987 through 1994 Mike was Vice President and partner in Sucasa Produce in Nogales.  A native of Petaluma, CA, graduate of University of California at Davis, Mike is a long-time Southern Arizona resident who brings dedication and solid expertise to SIGMA’s leadership. Mike’s son, Ryan, has also  joined the sales team full time.

Mike Smith, SIGMA president, with son Ryan, at the recent Fresh Produce of the Americas (FPAA) Convention (by Produce News)

Sean Barton, Vice President, Sales & Procurement.   A native of Nogales, AZ and son of West Mexico vegetable pioneer, Samuel Barton, Sean’s first job after high school was with Nogales distributor The Engebretson Grupe.  After graduating from The University of Arizona with a BA in Economics and Marketing, he worked for Wayne Vohland Corp, The Sykes Company and McManus Marketing.  A seasoned produce industry veteran, Sean joined SIGMA in 1994 and specializes in the fast-growing foodservice segment.

Steven (Steve) Schmitz, Vice President, Sales & Procurement.   Steve grew up in the “Peach Capital of the World”, Hughson, CA.  After a short stint in the livestock industry in Iowa after high-school, he returned to complete his education at the California State University-Fresno with a major in Agricultural Business Marketing.  Steve got a job at McDonald’s Corporation soon after, where he worked for six years before moving to Arizona and joining our industry at Borell Produce.  He came to SIGMA in 1994.

Lawrence (Larry)  “Born and bred” into California’s treefruit industry,  Larry has three decades of produce experience.  Upon completion of studies at Whittier College, he joined The Kroger Company as inspection and buyer for 10 years.  He also worked for Sales King International and Custom Produce Sales, joining SIGMA in 2007.

Lou (Louie) Morello.  Louie  hails from Vineland, New Jersey, where he attended Seton Hall University.   His first job was with Progresso Quality Foods, where he spent 10 years in scheduling and packaging procurement.  Lou moved to Nogales in the 1997 and worked for several produce houses before becoming a SIGMA sales specialist in 2000.

Elizabeth (Liz) De La Rosa, Sales Support.   A native of Nogales, Liz has been in the  industry since graduating from Nogales High School.   At her first job with Godinez International, Liz moved quickly from dispatch into warehousing.  She worked at Covilli Organics before joining us in 2006.  Liz works closely with our sales team to help ensure seamless transactions.

Whether your procurement department consists of one person or a large team, we act as your “silent partner,”  working hard behind the scenes for your success.