Software Businesses for Sale in Illinois.
Software businesses are among the most sought-after acquisitions for a reason: recurring revenue, high margins, and customers who stick around for years. Based on real buyer-seller conversations on Rejigg, the best software deals share two things in common. Predictable revenue from long-tenured customers, and a development team that ships without the founder driving every release. When you can confirm both of those early, the rest of your diligence tends to fall into place.
Featured Software Businesses in Illinois
Showing 6 of 6 listings
Illinois Digital IT Services
Managed IT Services & Technology Consulting Firm
Outsourced Call Handling Solutions
Healthcare Technology SaaS Platform
Web Development & Digital Solutions Agency
Cloud-Based Emergency Services Platform
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Due diligence
What to Look For
Practical guidance from hundreds of real acquisition conversations.
Revenue Retention Rates
This is where a lot of buyers get excited, and for good reason. Ask for net revenue retention (NRR) over the last three years. A software company where existing customers spend 100%+ of what they spent the prior year has real compounding power. If retention is lower, it's worth understanding why and whether the trend is improving. The actual cohort data will tell you more than any summary ever could.
Code Ownership and Tech Debt
You'll want to confirm the company owns all its intellectual property outright, with no client claims or contractor disputes. It's also worth having a direct conversation with the CTO or lead engineer about the state of the codebase, how old the tech stack is, and whether there's deferred maintenance that would need investment in year one. None of this is necessarily a dealbreaker, but it helps you plan.
Customer Concentration
Ask what percentage of annual recurring revenue comes from the top three customers. If one customer represents more than 20% of revenue, that's something to get comfortable with during diligence. Understanding the relationship, contract terms, and renewal history will help you assess how stable that revenue really is. The most reassuring pattern is dozens or hundreds of customers, none above 10%.
Team Independence from Founder
Find out whether the founder still writes code, manages key accounts, or handles support escalations. If the answer is yes to any of those, it means the transition plan becomes a bigger part of the deal. Look for an engineering lead and a customer success function that operate without daily founder involvement. That's the setup where you can step in as an owner and focus on growth instead of keeping the lights on.
Valuation
What Should You Expect to Pay?
3-5x
SDE
Owner-operated, under $1M ARR
5-10x
EBITDA
With management team and strong retention
Software multiples vary widely because recurring revenue quality matters more than top-line size. A $500K ARR business with 95% retention and low churn can command a higher multiple than a $2M business losing 20% of customers annually. The retention numbers tend to be the first thing sophisticated buyers look at.
What drives a premium
Net revenue retention above 100%, meaning existing customers spend more each year
Engineering team that ships product updates without founder involvement in code review
Customer base spread across 50+ accounts with no single customer above 10% of revenue
Proprietary technology or IP with clear ownership documentation and no contractor disputes
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