Constellation Software (TSX: CSU) buys, holds and runs vertical market software businesses as many separate units. As of its full-year 2025 results (March 9, 2026), it reported revenue of US$11,623 million, of which 4% was organic growth, free cash flow available to shareholders of US$1,683 million, and total acquisition consideration of US$1,579 million. For a small holding company it is the reference model for serial acquisition. Its discipline transfers; its scale and its software niche do not.
Constellation Software Inc. (TSX: CSU) says in its releases that it acquires, manages and builds vertical market software businesses. Its leadership page says Trapeze Group was the first company it acquired, in 1995. Its fiscal 2007 results release says it had completed its initial public offering and refers to a pre-IPO charge in the first quarter of 2006, but gives no listing date. The listing year, 2006, is as reported by Wikipedia; I could not open a prospectus or exchange notice to confirm it.
It matters to a small holding company because it is the reference case for a serial acquirer: many small purchases, held for the long term, each run as its own unit. In his April 2018 letter, Mark Leonard, then President, describes the goal as being a great perpetual owner of software businesses. The same letter counts 243 business units at the end of 2017, up from 193 a year earlier. For the model itself, see how the Constellation model works.
All figures are in US dollars and come from the company's own reports.
The company defines ROIC as adjusted net income divided by average invested capital. For 2014 that was $274 million over $739 million.
Nothing in the filings I opened describes a failed strategy. They show a model that worked at scale, and the costs of that scale.
What worked
The cautions the filings show
My view is that the discipline transfers and the scale does not.
What transfers
What does not transfer
One real ratio can be scaled down for illustration. In 2025 acquisition consideration was $1,579 million against FCFA2S of $1,683 million, or 94% ($1,579 / $1,683 = 0.938).
Assume a small holding company generates $1.0 million of free cash flow in a year. At the same 94% ratio it would commit about $0.94 million to acquisitions. That is one small deal, not a program. This is an assumption, not a forecast. The 2025 consideration also includes holdbacks and contingent amounts paid later, so the match between the two figures is approximate.
Where these numbers come from: Revenue, FCFA2S, acquisition consideration, net income, cash flow from operations and the dividend are from the full-year 2025 results release (March 9, 2026). First-half 2026 figures are from the second-quarter 2026 release. Fiscal 2007 figures are from the fiscal 2007 results release. The 2014, 2015 and 2016 revenue, ROIC and acquisition counts are from the 2014 and 2016 year-end reports. The 243 and 193 business units, the 2017 ROIC and the hurdle and disclosure points are from the April 2018 President's letter. The 2012 offering is from the company's April 2, 2012 closing release. The 1995 first acquisition is from the company's leadership page. The completed IPO is from the fiscal 2007 release; the 2006 listing year is as reported by Wikipedia, because the company releases I could open give no date. The $1.0 million example and the 94% ratio are this site's own arithmetic.
Yes. The full-year 2025 release declared a quarterly dividend of $1.00 per share, payable April 15, 2026 to holders of record on March 27, 2026.
The 2014 filing defines it as adjusted net income divided by average invested capital. See ROIC for holding companies for how to apply it to a small group.
It can copy the habits: long-term ownership, a stated return rule and separate units. It cannot copy the pace or the size. What is a serial acquirer? covers the smaller version.
To see a similar model with a controlling owner and a Stockholm listing, read Lifco: a controlled, decentralized compounder.
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