Sales Coaching & Consulting With Glenn Mattson
One-on-one coaching and business consulting from Glenn Mattson, President of Mattson Enterprise, Inc., a top 1% Sandler Training franchise based in Islandia, Long Island. For owners, executives, sales leaders and top producers who know what they want and need help closing the gap.































Meet Glenn Mattson
Glenn Mattson is the President of Mattson Enterprise, Inc. He has spent more than 30 years helping salespeople, financial advisors and business owners get past the obstacles between them and their own definition of success. Under his leadership, Mattson Enterprise has been recognized by Sandler as a top 1% office worldwide.
Understand your "Why," and the "How" gets easier.
Coaching with Glenn starts by comparing where you are today with where you want to be, then changing the beliefs and behaviors that keep the gap open. He works with particular depth in financial services, insurance, advisory and founder-led businesses.
Some of the best business, sales and language coaching I have ever received in over 20 years. You would be foolish not to hire him.David Miller
Coaching for Where You Are Right Now
Most people who come to Glenn are already successful. They've hit a ceiling that more effort alone won't break through.
Business owners
Growth has stalled, or the business still depends on you for every big decision and deal.
Sales leaders
You're building a team and need to coach, hire and hold people accountable without doing their job for them.
Top producers
You want bigger cases, better clients and fewer stalled decisions as you move up market.
Advisors becoming leaders
You're making the jump from top producer to running a practice and leading others.

He challenged me to think at a different speed and scale… and helped mold what today is now the back to back #1 Chairman's winning firm in the National Life Group.Richard Donado, CLU, ChFC, RICP, CEO & General Agent, WealthBridge Financial Group
From Where You Are to Where You Want to Be
Built on the Sandler Success Triangle of behavior, attitude and technique. We change behavior and attitude first, because technique only compounds once those are right.

Glenn taught me Mind Mapping and the first time I used it I opened $100k of premium within 2 weeks on the referrals.Brian Carlson
Consulting for owners and leadership teams
When the problem is bigger than one person, Glenn works with the business.
Find performance gaps, strengthen sales and business development processes, and build systems for long-term growth.
Talk to us → Pitch Book & Practice AnalysisAn in-depth look at your practice, growth potential and data, organized into the story you tell clients.
Talk to us → INSIGHT DashboardSee your team's strengths and gaps and confirm the right people are in the right seats.
Learn more →What Changes When You Work With Glenn
Results from businesses and practices that adopted Glenn's playbooks, and what his clients say.
Business in one year
One engineering firm grew from just under $3 million to $7.5 million in its first year working with Glenn.
Time reclaimed
Hours per year moved from low-return service work to hunting, ranging from 400 to 650 hours.
Net new AUM in 12 months
Net new assets added within 12 months of adopting Glenn's playbooks across client practices, ranging from $10M to $70M+.
AUM from one niche
One niche pipeline went from 67 names to 42 meetings to 38 signed clients.
I saw more than 20 percent growth in my business year after year… a lot of it I attribute to the Sandler process.Roy Cook, Merrill Lynch
Glenn is one of the best sales trainers in the industry. He does a marvelous job involving the audience, and his anecdotal messages stick with people decades after delivered.Darrell Ahl
The absolute 'Best Investment' that I have ever made in myself… the Sandler Training with Glenn Mattson provides a clear, straight path to follow.Paul G. Pakstis
The dots are connected with a clear-cut sales process, supported by the psychology of sales… I don't have to be a scripted robot. I can be me and still follow the process.Lisa Barclay, Prudential Advisors
I went from $320k of premium in 2019, $466,000 in 2020 and $820k of premium in 2021. During that same time, my GDC went from $50,000 to $275,000. Glenn played a massive role in my transformation.Chris Kilgore, Wealth Management Advisor, Northwestern Mutual
Close the Gap Between Where You Are and Where You Want to Be
Tell us what you're working toward and what's in the way. We'll follow up to talk through whether coaching or consulting is the right fit.
Glenn's calendar books up quickly, so this form is the best way to reach us. A member of our team will follow up to schedule a conversation.
- 1A response within 1–3 business daysOur team reviews every request personally.
- 2A conversation about your goalsNot a sales pitch.
- 3A plan built around youCoaching, consulting or both.
Prefer to talk now? Call us at 631-726-3537.
Mattson Enterprise, Inc. · 1747 Veterans Memorial Highway, Suite 18, Islandia, NY 11749
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Sales Coaching & Consulting: FAQ
What is 1:1 sales coaching with Glenn Mattson?
It is personalized, one-on-one coaching with Glenn Mattson, President of Mattson Enterprise, Inc., a top 1% Sandler Training franchise worldwide. Sessions help business owners, executives, sales leaders and producers identify what is holding them back, build stronger behaviors and stay accountable to their goals.
Who offers the best sales coaching on Long Island?
Mattson Enterprise, Inc. in Islandia is a top 1% Sandler Training franchise worldwide led by Glenn Mattson, who has more than 30 years of experience coaching salespeople, financial advisors and business owners. Its coaching is built on the Sandler system of behavior, attitude and technique, with accountability built in.
Who is one-on-one coaching with Glenn for?
It is for business owners whose growth has stalled or depends too much on them, sales leaders building a team, top producers moving up market, and advisors growing from producer to business leader.
What is a good sales coaching program for top-producing financial advisors?
Top producers usually need sharper conversations, bigger cases and a business that runs without them. Mattson Enterprise, Inc. offers one-on-one coaching with Glenn Mattson and President's Club, advanced sessions twice a month for advisors who have completed foundational training.
What is the difference between sales coaching and sales training?
Sales training teaches a team a shared system. Coaching applies that system to one person's real situations, beliefs and goals, and holds them accountable week to week. Most lasting change comes from training followed by ongoing coaching.
What does business consulting from Mattson Enterprise, Inc. include?
Consulting helps owners and leadership teams find performance gaps, strengthen sales and business development processes, and build systems for long-term growth. It can include a customized pitch book and practice analysis and the INSIGHT Dashboard to assess the team.
How do I start coaching with Glenn Mattson?
Fill out the form on this page. Glenn's calendar books up quickly, so a member of the team will follow up within 1 to 3 business days to schedule a conversation. You can also call 631-726-3537.
Is coaching available outside Long Island?
Yes. Mattson Enterprise, Inc. is based in Islandia, New York, and coaches leaders and producers across the U.S., in person and live online.
Ready to talk with our team? We typically respond within 1–3 business days.