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Professional

Mark Accomando

Location

  • Long Island, New York, United States

Offers Virtual Sessions

I help ambitious business owners on Long Island prepare for M&A, succession, capital raising and strategic growth with confidence and clarity.

Meet Mark Accomando

  • Scaled family business, and exited to private equity.
  • Seven years as a venture capital partner backing visionary founders.
  • Dual perspective: operator who has run companies + investor who has evaluated hundreds.
  • Father of two boys and a family man who values legacy and impact.
  • Former college football player and lifelong high-performing athlete.
  • Work best with growth oriented businesses and capital allocators preparing for a capital event in 3–5 years.

Book Your Free Introductory Call

Ready to get more of what you want from your business? Let’s talk. Book your free introductory call with me to share your business needs and challenges. I’ll share my background and style. No pressure, just a real conversation to see if we’re the right fit.

My EOS Approach

Dual Perspective
That of an operator and investor where practical execution meets capital readiness.
Legacy Builder
Helping entrepreneurs grow businesses that endure, benefit families, and strengthen communities.
Simplicity that Sticks
We focus on what truly matters — building simple, meaningful habits that stick.

What It’s Like to Work With Me

Hear from the business leaders and teams I’ve had the privilege of guiding through their EOS journey.

Client Success Videos

My Expertise & Insights

Insightful guidance, practical tips, and real-world stories to help you strengthen your leadership team and run a better business.

From Lion to Lamb & Back Again

In most of North America, the saying goes that March comes in like a lion and out like a lamb. For many entrepreneurs, this phrase holds a parallel to their business experience....
Read More

Speaking Engagements

I deliver keynotes and workshops that are perfect for groups of growth-oriented business owners and leaders. These intense sessions will help you:
  • Understand the six keys to building a truly great organization
  • Roll up your sleeves and confront your organizational issues head-on
  • Learn how to get everyone focused on achieving a clear company vision
  • Begin to instill discipline and accountability throughout your organization

My Upcoming Events

There are no current upcoming events. Please check back regularly and follow us on social for the latest news and events!

Professional Implementer

mark.accomando@eosworldwide.com

Phone: (516) 317-6076

  • Long Island, New York, United States

Offers Virtual Sessions

About

I’m Mark Accomando, an entrepreneur, investor, and EOS Implementer based on Long Island. I bring a unique perspective shaped by both sides of the table as an operator who scaled and sold a family business and as an investor who has backed visionary founders and learned what truly drives success.

I started Heartland Ventures, a venture capital firm built to connect early-stage technology companies with privately held businesses. For seven years I partnered with founders and leadership teams across the country, helping them grow with discipline, alignment, and purpose. Before that, I ran and sold my family’s travel business to private equity, which gave me a firsthand understanding of what it takes to build and transition a company.

Today I work with ambitious business owners and capital allocators who are preparing for growth, M&A, or succession. Through EOS, I help them simplify how they run their business, align their teams, and create clarity that lasts.

I am a former college football player, a lifelong competitor, and a proud husband and father of two boys. Everything I do is focused on helping leaders build businesses that endure and lives they are proud of.

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