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Greg Nanigian and Associates, Inc. | Braintree, MA

Meet Our Sandler Team

We strive to be the best at what we do, and help you to do the same.

Locally Owned & Operated

Greg Nanigian & Associates has consistently been one of the top ranked Sandler Training affiliates. On a national level, Sandler Training has been named the number one sales and sales management training program by Entrepreneur Magazine eleven times since 1994, including 2014.

Greg Headset Large

Greg Nanigian

Greg Nanigian is an award-winning Sandler trainer, author, coach, and speaker. He’s facilitated training programs all over the world and continues to do so now virtually. He has published over sixty articles on Greg has authored the book “Why People Buy" published by Sandler Training. Sandler Training is the leading sales and sales management development firm. Harvard Business School has partnered with Sandler Training to incorporate the Sandler Methodology into their curriculum.

Jeff Morgenthaler

Jeff Morgenthaler

Jeff has been acknowledged for his skills in sales process, sales management, new business development, solution selling, direct sales and sales partnerships. He is certified in five different selling methodologies.

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Andrew Botieri

Andrew has over 25 years and over 60,000 hours of sales coaching and sales management training. He’s trained small, medium and large organizations around the country. Andrew is also a published author and featured Keynote speaker.


Justin Nichols

Justin has 15 years of experience managing sound boards, alongside time spent in IT fields handling technical projects. He is proficient in SQL coding. He studied theatre and broadcasting at Massasoit Community College. He is a Zoom producer with Greg Nanigian and Associates.

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Yvonne Price

Yvonne has a varied background that includes sales, marketing, senior management in an international computer company as well as sales and training for an international real estate firm. When her husband retired, she came onboard with GNA Training. She handles all the office duties and she’ll be the one you hear when you call our offices. She will be able to assist you in all the details, such as registering you for a workshop, scheduling calls with Greg, and assisting in obtaining grants for training. Most importantly, she keeps the sales trainers in line!

Jim Voymas

Jim Voymas

Jim graduated from Boston University in 2001 in Web Design. He was Sandler trained by and has worked with Greg Nanigian & Associates for 16 years. He supports the digital marketing efforts of GNA. Jim performs website maintenance and other technical duties around the office. He sets up and trains clients how to get the most out of the Sandler Online portal.

Mike King

Mike King

Mike is multitasker at Greg Nanigian & Associates. He is a Business Development Representative using cutting edge and proven Sandler approaches combined with the most up to date technology to supplement the lead stream.  He doubles as a Producer working with GNA’s team of trainers to produce the highest quality Live-streamed Workshops available in the World. He likes to work-out and stay fit which energizes him for his high demand roles at GNA!

Flo Rubbo

Flo Rubbo

Flo Rubbo performs Accounting/Bookkeeping at Greg Nanigian & Associates since 2005. 

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Sandler Books

Sandler Books

The Sandler library of books includes two Amazon and Wall Street Journal best sellers, as well as the best-selling sales classic for any sales book ever.