Hi, I’m Marc.

Thanks for visiting BuiltLean!

I’m grateful you’re here.

We’ve worked hard to make BuiltLean a valuable resource for you.

We’ve also had the honor to work with thousands of men worldwide to improve their health & well-being.

Here’s my story of how BuiltLean came to be.

I Used To Be A Finance Analyst With Poor Eating Habits & 30lb+ Of Fat To Lose.

As a kid, I dreamed about having a lean, strong, & athletic body.

I started with bodyweight workouts when I was 12 years old, then started weightlifting when I was 16.

As a Division I lacrosse player at Yale, I reached a high fitness level.

But after college, my physical condition took a turn for the worse…big time.

In my first year in the workforce, I gained 30 pounds of fat and tipped the scale at 200 pounds.

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Eating big portions, drinking 3 nights a week, and spending most of my time sitting down staring at a computer added up.

I felt uncomfortable in my own skin and wasn’t happy with how I looked & felt.

I also had low back pain that would flare up regularly.

I knew I had to make a change in my life!

I had to find efficient exercise & eating strategies to look like an athlete while being a desk jockey.

I Transformed My Body With Just 3 Workouts A Week & Clean Eating.

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My initial strategy of crash dieting & exercise backfired completely.

I wanted to burn as many calories as possible while eating as few calories as possible.

Because I didn’t eat much during the day, I was starving at night. I would stuff down a large bowl or two of cereal, which didn’t help my cause!

After a few weeks of pushing very hard, I had no results to show.

It really bothered me. When you work hard, you should get some results.

I didn’t give up. I made my exercise more efficient and my eating habits more sustainable.

Within a few months, my body completely transformed.

Confident In The Results I Achieved, I Did The Unthinkable.

After 5 years of building my hedge fund career and working more late nights than I can remember, I left my finance job.

I got the top certifications in the fitness field. I spent countless hours training people of all ages and fitness levels.

Over time, I developed a fitness program that helped everyone I worked with get fantastic results.

Fast forward 15 years, the BuiltLean® Program is now helping men worldwide get lean & healthy.

I’ve been featured on NBC, CBS, FOX, Men’s Journal, Men’s Health, and many other media outlets for my expertise in helping busy professional men transform their bodies.

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I’ve Had A Lean Body For The Last 15+ Years.

I’m grateful that I’ve had a lean & healthy body for almost two decades.

My flexibility is improving as I get older. I couldn’t be happier with my results!

With the right mindset and approach, I know you CAN achieve the results you want and improve them over the long term.

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I Created BuiltLean To Empower You To Get Lean & Healthy For Life.

I created BuiltLean because I believe in you and I know you can be lean & healthy for life.

My desire to help you improve your health is in my blood; my Dad is a doctor, and my Mom was a nurse (she cut her career short to focus on raising four kids).

While getting the lean body you dream about can seem far-fetched, I know you CAN do it!

If you struggle with eating consistency and want to lose 10+ pounds of fat, then be sure to check out our get lean guide.


Hometown: Port Washington, NY

Residence: Santa Monica, CA

Education: Yale University, ‘04

Hobbies: Exercise (of course!), Wellness, Hiking, Traveling, Snowboarding, Volunteering


  • 2008 Certified Personal Trainer (ACE)
  • 2008 Certified Strength & Conditioning Specialist (NSCA)
  • 2014 Functional Movement Screen Level I & II
  • 2016 StrongFirst Level 1 Kettlebell Instructor
  • 2016 FRC Mobility Specialist
  • 2016 StrongFirst Bodyweight Instructor
  • 2018 StrongFirst Level 2 Kettlebell Instructor
  • 2018 Strongfirst Barbell Instructor
  • 2020 Movnat Certified Trainer Level 1
  • 2022 Original Strength Certified Pro