Vertical Market Software Acquirer
Toronto-listed software company that buys and holds small vertical market software businesses for good, through decentralized operating groups that each run their own M&A teams.
Constellation Software is not a fund: it is a public software company (TSX: CSU), founded by Mark Leonard in 1995 and headquartered in Toronto, that acquires mission-critical vertical market software (VMS) businesses and holds them indefinitely. It says it has made more than 1,100 acquisitions, and the acquired businesses keep running autonomously inside operating groups such as Harris, Volaris, Jonas, Perseus, Vela, Modaxo and Andromeda, plus the separately listed Topicus.com and Lumine Group. For Canadian students the relevant path is the M&A, corporate development and business development teams inside those operating groups, whose sourcing, valuation, diligence and deal-execution work resembles lower mid-market private equity without a fund structure or exit horizon.
0 open roles3 deals6 people17 sources
Buys B2B companies with proprietary, mission-critical software, diversified customers, low attrition and preferably recurring revenue. There is no minimum revenue size or geographic limit, and it intends to hold what it buys indefinitely while leaving existing management in place.
Operating group headquartered in Ottawa serving public sector, healthcare, utilities, private sector and insurance markets. It reports more than 170 software acquisitions and over 15,000 employees, and runs its own M&A and corporate development team.
Two of the large operating groups. Volaris reports over 240 businesses in more than 40 vertical markets; Jonas describes itself as an acquirer of mission-critical VMS companies with more than 20 years of experience.
Further operating groups, each acquiring and running its own businesses: Modaxo focuses on people-transportation technology, Vela runs a coaching-oriented decentralized model (its Juniper Group bought DerbySoft in 2026), and Andromeda and Perseus describe themselves as long-term homes for acquired software companies.
Group companies that hold their own annual shareholder meetings: Topicus.com is a pan-European VMS provider, and Lumine Group acquires communications and media software businesses (30+ since 2014, including Synchronoss in 2026).
Official Contact Us page lists only the Toronto head office (70 The Esplanade). The operating groups and their businesses run their own offices worldwide (Harris, for example, is headquartered in Ottawa), and no consolidated office list is published. This list may be incomplete.
| Toronto | ON | headquarters |
| Ottawa | ON | regional |
Powered by
Coming soon
We’re collecting the real technical and behavioural questions candidates were asked at Constellation Software, by role and office, and how each round runs.
When they’re in, they’ll be part of BSO Pro, which already has candidate reports for dozens of firms.
Interviewing there sooner than that? Get in touch and we’ll help you prepare.
Programs
Full-time Analyst · Ontario, Canada (remote-friendly)
Not a structured graduate program: Harris posts M&A Analyst/Associate roles on its own careers site. Analysts (0–2+ years of experience in M&A, transaction services, accounting or corporate finance) build models and valuations, coordinate diligence, write investment memos and help source targets; the posted analyst salary range was C$60,000–80,000 plus bonus, with 10–25% travel.
Director and Chairman
Board of Directors
Chairman of the board. He previously ran the Vela operating group, served as Constellation's CFO and was President of Jonas Club, after earlier roles at Bain & Company, Dell and PwC.
President and Chief Operating Officer
Head office
Co-founded Trapeze Group in 1988, which became Constellation's first acquisition in 1995, and has spent more than 30 years with Constellation, Volaris and their businesses. He was named President in September 2025 when founder Mark Leonard resigned for health reasons, keeping his COO role, and joined the board in December 2025, when he was also described as Executive Chairman of the Volaris Group.
Chief Financial Officer
Head office
Joined Constellation in 2003 as Controller of the Jonas operating group and is now CFO. He is a CMA and holds an honours mathematics degree from the University of Waterloo.
Chief Investment Officer
Head office
Joined Constellation in 1995 and works with its VMS businesses on platform and tuck-in acquisitions and licensing or distribution arrangements. Before that he was AVP Business Development at Ascom and held roles at IBM; he has a McGill engineering degree and an INSEAD MBA.
General Counsel
Head office
Joined Constellation in 2001 and moved to head office in 2007. He previously worked in Bombardier Aerospace's law department; he was called to the Ontario bar in 1999 and holds an LL.B. from the University of Toronto.
SVP, Large Investments and Strategy
Head office
Started at Constellation in 1999 and held CFO and senior M&A roles at Jonas and Volaris. After co-founding and running a startup from 2019 to 2021, he has led the Large VMS Investment Group since April 2021. He is a CPA, CA.
Professional information only, drawn from official biographies and published reporting. BSO never lists private contact details.
May 15, 2026
Mark LeonardDeparture
Advisor (PEMS strategy)
Constellation Software → —
Announced in March 2026 that he would not stand for re-election, leaving the board at the May 2026 annual meeting while staying on as an advisor on the company's minority-stake (PEMS) investment strategy.
Sep 25, 2025
Mark LeonardDeparture
Director
Constellation Software → —
The founder resigned as President with immediate effect for health reasons and stayed on the board.
Sep 25, 2025
Mark MillerAppointment
President and Chief Operating Officer
— → Constellation Software
The board named the long-time COO as President, succeeding Mark Leonard, while he kept his other roles.
Apr 14, 2026
Derbysoft Holdings Limited (DerbySoft)
Acquirer · Travel distribution technology
Buyer Juniper Group (Vela operating group, Constellation Software)
Vela's Juniper Group bought a majority interest in DerbySoft's parent, with key executives keeping a minority stake and CEO Ted Zhang continuing to run the business independently. Price not disclosed.
Dec 4, 2025
Synchronoss Technologies, Inc. (Nasdaq: SNCR)
Acquirer · Communications software (personal cloud SaaS for telecom carriers)
Buyer Lumine Group Inc.
All-cash take-private at US$9.00 per share, about US$116.4 million of equity value and about US$258.4 million of enterprise value. It was Lumine's first acquisition of a publicly traded company.
Oct 15, 2025
TECVIA Holding GmbH
Acquirer · Vertical market software (business not described in the release)
Buyer Harris (Constellation Software operating group)
Harris agreed in October 2025 to buy German holding company TECVIA and completed the deal in November 2025. Terms not disclosed.
Revenue grew 17% to US$3,335 million with 3% organic growth, and the company deployed US$893 million on acquisitions in the quarter with another US$818 million committed after quarter-end.
Vela's Juniper Group completes its purchase of a majority interest in DerbySoft.
Leonard does not stand for re-election and stays on as an advisor on minority-stake investing.
The founder leaves the board at the May 2026 meeting but continues advising on the minority-stake (PEMS) strategy.
Revenue up 15% to US$11,623 million; acquisitions totalled US$1,579 million of consideration.
Lumine Group closes its US$9.00-per-share cash purchase of Nasdaq-listed Synchronoss.
Leonard resigns for health reasons; COO Mark Miller becomes President.
17
0
0
0
Constellation Software Inc. · Aug 11, 2026 · csisoftware.com
Constellation Software Inc. · Jun 1, 2026 · csisoftware.com
Constellation Software Inc. · Apr 14, 2026 · csisoftware.com
Constellation Software Inc. · Apr 10, 2026 · csisoftware.com
Constellation Software Inc. · Mar 27, 2026 · csisoftware.com
Constellation Software Inc. · Mar 9, 2026 · csisoftware.com
Harris (Constellation Software operating group) · Mar 2, 2026 · harriscomputer.wd3.myworkdayjobs.com
Constellation Software Inc. · Feb 13, 2026 · csisoftware.com
Constellation Software Inc. · Dec 9, 2025 · csisoftware.com
Constellation Software Inc. · Dec 4, 2025 · csisoftware.com
Constellation Software Inc. · Oct 15, 2025 · csisoftware.com
Constellation Software Inc. · Sep 25, 2025 · csisoftware.com
Constellation Software Inc. · Date unavailable · csisoftware.com
Constellation Software Inc. · Date unavailable · csisoftware.com
Constellation Software Inc. · Date unavailable · csisoftware.com
Constellation Software Inc. · Date unavailable · csisoftware.com
Constellation Software Inc. · Date unavailable · csisoftware.com
Showing sources for the free preview. 0 further sources support the locked intelligence on this page.
Add your resume and BSO shows how you match Constellation Software and the signals in your favour. BSO Pro adds how to position yourself, who to contact and the roles open at your level.
Get your plan