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Infinite Performance Group | Denver/Boulder, CO

What our clients say

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RMB Sees 30% Increase In Revenues With Sandler Training

"Since our company started working with Sandler, we have seen top line revenues increase 30%.  Our sales team can point to numerous contracts won that we would have likely lost without applying the principles we have learned through Sandler Training. 

Working with Darrel Risberg has been a pleasure.  His knowledge of the Sandler system and his willingness to share his experiences from his career have been extremely beneficial to our sales team."


Mike Baraky
VP Sales & Marketing
RMB Products, Inc.

Sandler Essential to Transworld Sales Performance


"Working with Darrel and Sandler has been essential to our organization. He is very knowledgeable in the arena of sales, and how to train a sales team for top performance.

Darrel has been able to successfully help our team integrate better tactics that have translated immediately to increased revenue and profitability."


Jessica Fialkovich
Transworld Business Advisors



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Samuel Hoff

Patti Engineering

Industry: Engineering

Samuel Hoff, Executive Vice President of Sales and Marketing for Patti Engineering, talks about how his company’s sales more than doubled after Sandler sales training. “In 2007, we were a bunch of really good engineers and really bad salespeople; now we’re the same good engineers but we’re a lot smarter about the sales process.” In 2007 the company did a little less than $3 million in business and spent $1.10 for every dollar it made. Last year it did $7.5 million in business and spent 88¢ for every dollar it made. “My personal income is seven times what it was in 2007,” says Hoff. “That’s living proof of the success of Sandler.”

Ken Harris

Health o meter

Industry: Healthcare

Ken Harris is Vice President of Sales and Marketing for Health o meter, which manufactures devices for the medical community. He describes his history with Sandler, which spans 15 years and four companies. “Sandler is the one process I’ve seen that puts customer behaviors and salespeople behaviors together to help the customer in a way that ends up helping the company.” Harris uses a sports analogy to describe the impact of a great system, whether in college sports or sales training: “In a college team, turnover is every four years by definition, yet dynasties exist because they have good systems. Sales is also a skill set that needs to be constantly honed and, for me, Sandler is the only method that provides that level of consistent and intimate training.”

Roy Cook

Merrill Lynch

Industry: Financial Planning

Roy Cook, who works with Merrill Lynch to help clients strategize their retirement plans, explains his mindset when he started Sandler training. “When I was introduced to Sandler I didn’t think I had any problems,” he says. He did have problems, though, including the lack of a systematic approach to generating new business. “Sandler has a very logical, very cerebral approach to sales. I saw more than 20 percent growth in my business year after year. Some of that I attribute to the market, but a lot of it I attribute to the Sandler process, with me implementing it and working more efficiently.”

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