We Don't Manage Performance.
We Engineer It.
Mattson Enterprise, Inc. is a Sandler Training franchise in Islandia, New York, led by Glenn Mattson. For more than 30 years we've helped sales professionals and entrepreneurial leaders at every stage build the skills, teams and systems that turn potential into consistent performance.
You've Tried Training Before. It Didn't Stick.
Most sales training teaches tactics. We build the leaders, systems and behaviors that make results last.
Led by Glenn Mattson. Built on Sandler.
Glenn Mattson · President, Mattson Enterprise, Inc.
Glenn built Mattson Enterprise on a simple conviction: lasting performance comes from changing behavior and attitude first, not from another script. That's why our clients keep the gains long after the training ends.
We work where sales performance, leadership development, advisor productivity, recruiting and growth strategy meet, with particular depth in financial services, insurance, advisory and founder-led businesses. We don't hand you a binder. We're the partner entrepreneurial leaders rely on to build stronger, more scalable businesses.
- Top 1% Sandler Office Worldwide
- Sandler Pinnacle Award
- 30+ Years Training Sales Professionals
- Keynote Speaker
From the Problem to the Payoff
Built on the Sandler Success Triangle of behavior, attitude and technique, applied through a distinctly Mattson lens.
Business problems we solve
- Inconsistent, unpredictable sales results
- Weak prospecting and difficulty handling rejection
- Stalled skill development at every career stage
- Owner dependency and businesses that can't scale
- Recruiting and developing talent
- Moving from new agent to top producer to business leader
What clients get
- A repeatable, confident sales process
- Consistent new business and referrals
- Skills that grow with every career stage
- A more scalable, predictable business
- Less dependence on the owner or leader
- Sustainable growth, for you or your business
Daily disciplines
The habits that separate consistent performers from people who react to whatever's loudest.
Beliefs first
What a leader tolerates, avoids or fears drives every behavior underneath it. We change the belief first.
Then technique compounds
Once behavior and attitude are right, technique compounds. Scripts without the first two are theater.
Where Are You Right Now?
Every leader passes through six stages. Recognizing which one you're in is the fastest way to know what to do next.
- Stage 1Something Changed
I'm working just as hard, but the results aren't coming like they used to.
- Stage 2I Can Fix It
I just need a new tactic, tool or hire, and this fixes itself.
- Stage 3What Am I Missing?
The quick fixes aren't working. Maybe the problem is closer to home.
- Stage 4I Need Help
I can't solve this alone. I need a partner who's done this before.
- Stage 5You're It
I've found a process I trust. Now it's on me to follow through.
- Stage 6Let's Go
I know exactly what to do next, and I'm ready to build.
A Program for Every Stage of Your Career
Our programs connect into one pipeline, from a new agent's first year to running your own business. Find the description that sounds most like you.
NALA
New advisors building the foundation of a sales career.
Explore NALA → Building core skillsSales Academy
Producing, and ready to sharpen and master core selling skills.
Explore Sales Academy → Ready for the next levelPresident's Club
A 12-month program for proven producers ready to go from good to consistently great.
Explore President's Club → Running the business5 Stages of Growth
For owners who built the business through sales and are now scaling teams and leaders.
Explore 5 Stages →Running the business? INSIGHT shows owners exactly where each person on their team stands. Coming soon: Organizational Excellence, President's Club-level development for entrepreneurs building their own business.
Real Practices. Real Numbers.
Results from client practices that adopted Glenn's playbooks, and what clients say.
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+.
Advisor time reclaimed
Advisor hours per year moved from low-return service work to hunting, ranging from 400 to 650 hours.
AUM from one niche
One niche pipeline went from 67 names to 42 meetings to 38 signed clients.
Business in one year
One engineering firm grew from just under $3 million to $7.5 million in its first year working with Glenn.
Questions About Mattson Enterprise
What is Mattson Enterprise, Inc.?
Mattson Enterprise, Inc. is a Sandler Training franchise based in Islandia, New York, led by Glenn Mattson. It is a top 1% Sandler franchise worldwide with more than 30 years of experience in sales training, sales coaching and leadership development, with particular depth in financial services, insurance, advisory and founder-led businesses.
Who is 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 build the skills, habits and accountability that close the gap between where they are and where they want to be. He is a Sandler Pinnacle Award recipient and a keynote speaker.
Which Mattson program is right for me?
It depends on where you are in your career. NALA is for advisors new to the industry, Sales Academy for producers building core selling skills, President's Club for proven producers ready for the next level, and 5 Stages of Growth for owners scaling a business. INSIGHT helps owners see where each person on their team stands. The free 2-minute quiz at Find Your Program points you to the right fit.
What is the Sandler Success Triangle?
The Sandler Success Triangle is the foundation of every Mattson program: behavior (what people do each day), attitude (what they believe) and technique (how they execute). Mattson Enterprise changes behavior and attitude first, because technique only compounds once those are right.
How is Mattson Enterprise different from other sales training?
Most sales training teaches tactics. Mattson Enterprise builds the leaders, systems and behaviors that make results last, through ongoing coaching and reinforcement rather than a one-time event, so clients keep the gains long after the training ends.
What industries does Mattson Enterprise work with?
Mattson Enterprise works with financial advisors, insurance professionals, wealth management and advisory firms, and founder-led businesses. Clients include advisors and leaders at firms such as Northwestern Mutual, MassMutual, Prudential, Lincoln Financial Group, State Farm and Baystate Financial.
How do I contact Mattson Enterprise?
Call 631-726-3537, use the contact form on this page, or visit go.sandler.com/mattson. The office is at 1747 Veterans Memorial Highway, Suite 18, Islandia, NY 11749, and the team typically responds within 1 to 3 business days.
Ready to Build a Business That Doesn't Depend on You?
Let's talk about where your business is today, and the leaders, systems and growth plan it needs next.
- 1Send us a noteShare a few details in the form.
- 2We follow upOur team reaches out within 1–3 business days.
- 3Map your next stepsWe'll talk through which program fits where you are.
Prefer to talk now? Call us at 631-726-3537.
Not sure where to start? Take the 2-minute quiz →