We've Been Building Companies For 25+ Years.

We've taken ideas from zero to customers, revenue, millions in sales and successful acquisitions.

25 Years

Building companies from scratch

$0 → Millions

Creating revenue from nothing

Multiple Exits

Acquired by Fortune 500 companies

Still Building

An active portfolio today
We've built without outside investment.
We've entered new markets.
We've launched products.
We've made mistakes.
We've changed direction.
And we've learned what it actually takes to turn an idea into a business.
We Don't Just Advise Companies. We Build Them.
Our Experience

25 Years Of Building From Zero.

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SideStarter was founded by entrepreneur Jonathan Aspatore after more than 25 years building companies from the ground up.

We've gone from idea to customers, zero to millions in revenue, and successfully sold multiple companies to Fortune 500 companies.

We've lived every part of building something from nothing.
Now we're putting that experience to work building what comes next—for executives and companies.

In Development

FavorBonds
Connecting local shelters with local businesses and helping more dogs find their forever home.
FavorBonds
A new type of publishing house, leveraging A.I. to publish interactive, self-updating and enduring assets.
TonyTechs
Give the best flowers of your life, in under a minute.
FavorBonds
An offline retreat to create or develop something meaningful.

Different Businesses. The Same Process.

The businesses have changed.
The markets have changed.
The technology has changed.

But the fundamentals of building something from zero haven't.

Find an overlooked opportunity.
Understand the customer.
Validate before overinvesting.
Build quickly.
Get it into the market.
Listen to what the market tells you.
Invest further when the signal is there.
That experience became the foundation for SideStarter.

We Know What Zero Feels Like.

There's an enormous difference between growing an existing business and staring at a blank page.
No brand.
No customers.
No product.
No website.
No team.
No revenue.
Just an opportunity.

We've Started There Again And Again.

That's important because it's exactly where every new Side Venture starts.

Whether we're building alongside an accomplished executive or inside an established company, we're comfortable starting with:

Nothing But The Opportunity.

Then building from there.

Built Without Needing Venture Capital.

We believe this matters too.

We've built companies without assuming the answer to every problem is raising more money.

That creates a particular discipline.
Validate before spending.
Find customers before building too much.
Use capital intelligently.
Let traction earn additional investment.
That philosophy remains central to how SideStarter builds today.

Start Intelligently. Prove Something. Then Invest More.

From Zero To Fortune 500 Acquisition.

We've experienced the entire company-building lifecycle.
Starting with an idea.
Finding the first customer.
Building the product.
Hiring the team.
Growing revenue.
Scaling the company.
And ultimately selling businesses to Fortune 500 companies.
That perspective changes how you build from day one.
We're not interested in simply launching things.

We're Interested In Building Things That Can Become Valuable.

Now We're Building The Next Ones.

Everything we've learned over 25+ years of entrepreneurship is now being applied through SideStarter.

But instead of limiting ourselves to our own ideas, we're putting that company-building experience behind two enormous sources of untapped opportunity.
FOR EXECUTIVES

Build Something You Own.

You've spent decades accumulating experience, expertise, relationships, credibility and ideas. We'll help turn those advantages into something you own.
A company
An AI product
Software
Consumer brand
Media company
IP platform
Nonprofit
Build the asset. Create the options. Decide later.
FOR COMPANIES

Build The Businesses That Come Next.

Established companies already possess many of the ingredients required to build great businesses: customers, distribution, technology, data, IP, and expertise.
Don't wait until you need your next business to start building it.

Case Studies

ASPATORE BOOKS

ASPATORE BOOKS

Aspatore Books began when Jonathan Aspatore got his first book deal from McGraw Hill as a 21-year-old.

In order to convince them he was capable of writing such a book, he received letters of recommendation from business leaders he reached out to that agreed to be interviewed for the book. After publishing this book and 5 others with McGraw-Hill and Houghton Mifflin in a 2-year period, he took the concept and founded his own publishing house, Aspatore Books.

Aspatore Books turned interviews with top business executives, lawyers and entrepreneurs into chapters in thousands of books it published over it’s 10-year history. At it’s height, Aspatore Books was publishing over 500 books and 5,000 professionals a year, making it one of the five largest business book publishing houses by number of annual titles. Thomson Reuters eventually acquired Aspatore Books as the team was already in the process of starting several new companies.

Jonathan recognized the interest in business professionals and lawyers wanting to get published, but not sure how to approach the process. This theme has continued to play out over the last 20 years in our professional businesses we’ve started, helping them utilize new digital media (webinars, and now A.I.), get on advisory boards, and start a side business.

EXECSENSE

EXECSENSE

ExecSense was built to solve a simple but growing problem: senior leaders needed practical, real-world insight—not theory—from people who had already been there. From its earliest days, ExecSense focused on delivering on-demand executive intelligence created by experienced business, legal, and financial professionals for peers facing real decisions.

Over time, ExecSense developed one of the largest professional learning libraries serving senior executives and corporate professionals, offering content designed to fit into the realities of busy leadership roles.

Key highlights included:

  • Thousands of expert-led webinars featuring executives, attorneys, consultants, and industry specialists
  • A substantial library of eBooks, reports, and executive briefings
  • Podcasts and digital content focused on timely business, legal, and leadership issues
  • A practical, experience-driven approach to executive education and professional development

This positioning allowed ExecSense to become a trusted resource for professionals looking to stay informed in a rapidly changing business environment.

ExecSense was acquired by the Financial Times, then part of Pearson plc, marking a significant milestone in the company’s history. The acquisition reflected the value of ExecSense’s deep content library, executive audience, and practitioner-driven approach to professional learning.

Under the Financial Times umbrella, ExecSense aligned with a global brand known for high-quality business journalism, analysis, and executive insight, further validating its role in the executive education and information ecosystem.

ExecSense’s legacy is rooted in its commitment to real expertise, real experience, and real value for leaders. It demonstrated that executive learning is most powerful when it comes directly from those who have navigated the challenges themselves—and when it respects the time, intelligence, and responsibility of its audience.