Our Team

With a team of industry veterans whom are ethical, diligent, curious and creative, we leverage our relationships with operator and distributor partners to scale brand revenue and presence for our brands.

Greg Arz

Greg Arz is an industry veteran of 30+ years with impressive sales and management contributions to Kraft/Oscar Mayer for 17 years. Greg then accelerated Gardenburger from niche to mainstream in foodservice and was a Regional Manager with J&J Snacks & Rich Products. Greg resides in Davis, CA.

Heather Federman
Regional Account Manager
Southern California

Heather Federman has 20+ years of foodservice sales success in Southern California, working directly with manufacturers, distributors, chains, business and industry accounts, vending and more. Heather feels honored each day that she is able to represent reputable manufacturers who care about more healthful food options, our environment and the people behind these foods who contribute to their fair production.

Amy Warehouse
Regional Account Manager
Northern California

Amy Warehouse was born and raised in the Bay Area and has spent her entire career of 12+ years in CPG sales and marketing. She started in the beverage world, working for major companies on both the distribution and manufacturing sides. In 2012, she moved into the natural foods industry, with her most recent experience as a Regional Account Manager for UNFI Foodservice where she worked directly with manufacturers, brokers, and large customers to manage and grow a very profitable territory. Amy lives in Pleasanton, CA with her husband and two young daughters.

Danielle Sustendal
Regional Account Manager

Danielle Sustendal is a native New Orleanian who spent the past 13 years in Los Angeles working with some of the best chefs in the business, including Wolfgang Puck. Danielle not only comes from a strong food background but is also passionate about great tasting food and healthy living. For nearly 3 years, Danielle has been developing the fast growing market in Texas, as well as the surrounding markets in Oklahoma, Louisiana and Arkansas. She enjoys hiking and is an avid New Orleans Saints fan. Danielle currently resides with her husband and 2 children in Austin, Texas.

Maryann Alonso
Regional Account Manager
Arizona; Southern Nevada

Maryann Alonso is native to Arizona and comes from a background of family-owned restaurants, such as “The Wild Cat Inn”, on the campus of University of Arizona in Tucson, and the popular chain “Orange Julius”. With over 15 years of outside sales and customer service, she is excited to represent a line of Natural and Organic foods and beverages. Maryann practices a healthy lifestyle with exercise and is always trying new healthy recipes. She resides in Gilbert, Arizona with her husband of 20 years and a daughter.

Mary Cargill
Regional Account Manager

Mary Cargill joins the Natural Source Sales team with over 15 years of successful sales experience and a proven knowledge of account development, client relationship management and competitive analysis on both the manufacturer end and as a Northwest Foods broker. Mary has worked in the Northwest most of her career with a focus on Natural/Speciality Foods and HABA, and is excited to share her knowledge, passion and expertise with our customers and helping our family of brands sales and partnerships grow in the Pacific Northwest. Mary resides in Tacoma, Washington.

Tim Stein, MPS, RD
Regional Account Manager
Rocky Mountain Region

Tim Stein is a life-long foodservice industry veteran, with 30+ years of operations, sales and consulting experience. He has worked in key leadership positions for several hospitality management, education, and business consulting organizations. Tim maintains his credentials as a registered dietitian and has long been an advocate and promoter of clean-label food products. Having raised three kids in Colorado, Tim now enjoys the empty nest life with his wife where they participate in many outdoor activities, cooking, gardening, and imbibing on local food and craft beer.

Andrea Block
Chain Account Sales Manager

Andrea brings us over 20 years of Foodservice sales success.  She spent many of those years at Kraft Foods and most recently worked at Dr. Praeger’s selling Plant Based products. She has a passion for the industry and enjoys calling on regional and national chain accounts.  Her favorite thing about working with customers is the long-lasting relationships that she has built and retained over the years.

Originally from Milwaukee, Wi. but has lived in AZ for many years now where she met Scott, her husband of 28 years.  They have a son, Jordan, who is a professional water skier at Legoland FL.!

In Andrea’s spare time, you will find her at the gym, traveling and EATING out at one of her many favorite restaurants😊!

She is very excited to be part of the Natural Source team, working together selling great brands!