Building and Investing in Enduring Software Businesses

Continuous Improvement, Empowered Leaders, Enduring Growth

We invest in a special breed of software businesses that we have spent decades studying.
As an operating group of Constellation Software Inc. (TSX:CSU), we help good companies become great through data-driven guidance, permanent capital, and the accumulation of knowledge from over 800 acquisitions.

Perseus Group and Constellation Software Inc.

Operations in
+ Vertical Markets
Family of
+ Companies
Backed by Permanent Capital
+ Billion Invested
Growing Workforce of
+ Employees


Reinvest and Grow With
Permanent Capital
Pursuit of Mastery
Fostering a
Meritocratic Environment
Integrity is Foundational in
Everything We Do

Acquisition Criteria

B2B Software

Companies providing mission-critical solutions for niche markets and have loyal and diverse customer bases.

Recurring Revenue

Most earnings are generated through SaaS or maintenance revenue, which recurs annually or regularly.

Vertical Market

Niche markets are our specialty. We are industry agnostic in our pursuit of segment-defining brands.

In The Media

Discover the latest third party headlines to stay up to date with the latest aquisitions at Perseus Group.

How a Canadian Company Became the World's Premier Software Acquirer: access the article to explore Constellation's transformative strategies.

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Shakeup for local DMS market. $88 billion Toronto-based software group buys into Australia via purchase of Auto-IT

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Corum Group

2024 Global Tech M&A Report: Corum names Constellation Software The 2024 Top Volume Aquirer with 98 aquisitions completed in the past year

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The Globe and Mail

Constellation Software looks to ‘experiment’ by buying Canadian VC-backed companies

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Fostering Vertical Market Excellence

Permanent Home
Our buy-and-hold philosophy aligns the interests of employees and customers.
Domain expertise is one of our core pillars. Our industry experts have developed intimate knowledge of their business and customers, and they are empowered to operate autonomously.
Culture of Excellence
Our investment decisions are guided by the accumulation of learnings from each new acquisition. Our global network of entrepreneurs, software experts, and investment professionals provides a platform for leaders to thrive.
Success Stories
Explore Success Stories

The Latest Insights & News

Explore the latest news, insights, and articles from our vertical market investors and operators.

ArticlesThriving in the Forever Home: Post Acquisition Leadership Insights from HomeBuilder's Evolution
Discover leadership insights from Constellation HomeBuilder Systems' post-acquisition journey. Explore stories of resilience, mentorship, and growth, highlighting the transformative power of Perseus' investment in employees and nurturing a thriving culture.
Homebuilding Industry

Business Owner
ArticlesHomeBuilder's Exceptional NPS Scores: A Testament to Customer-Centric Acquisition
Discover how Constellation HomeBuilder Systems, under Perseus' leadership, achieves exceptional customer satisfaction with industry-leading Net Promoter Scores through its flagship products: BuildTopia, NEWSTAR, and Homeowner Central. Learn about their commitment to innovation, continuous improvement, and exemplary customer service.
Homebuilding Industry

Business Owner
ArticlesSpotlight on Perseus Portfolio: A Glimpse into Constellation HomeBuilder Systems
Discover the secret to success at Constellation HomeBuilder Systems, a Perseus Group portfolio. Learn how their innovative strategies, dedicated team, and focus on homebuilding have driven their impressive growth and industry leadership.
Homebuilding Industry