Constellation Software Inc. (CSI), a global software conglomerate with over $10 billion in revenue, operates in more than 100 countries and employs over 65,000 professionals.
This milestone marks a significant step in Estuary’s growth journey, unlocking access to global technology resources and an extensive customer network. Joining CSI will accelerate Estuary’s technological innovation, enhance service quality, and deliver greater value to clients.
Huy Phạm, CEO of Estuary, shared: “Becoming part of CSI not only solidifies Estuary’s position on the international software technology map but also underscores our commitment to delivering cutting-edge solutions to our customers. With CSI’s support, Estuary gains the global momentum and resources to serve our clients more comprehensively.”

Joining Constellation Software enhances Estuary’s service quality and delivers more holistic value to customers.
At the signing ceremony, Mỹ Lê, CSI’s Managing Director for Southeast Asia, emphasized: “Investing in Estuary reflects CSI’s ambition to expand its footprint in Southeast Asia after three years in the region. Estuary represents a pivotal milestone in building an ecosystem of software solutions for distribution and sales interaction across direct and indirect channels. Combining Estuary’s capabilities with CSI’s global strengths will create sustainable value for customers, employees, and stakeholders, while elevating Vietnam’s software technology industry on the global stage.”
Post-acquisition, Estuary will maintain its team, core values, and development vision while leveraging CSI’s global strengths to enhance service experiences for clients in Vietnam and internationally.
About Constellation Software Inc.
Founded in 1995 in Toronto, Canada, Constellation Software Inc. is a global software leader with over 65,000 employees, serving millions of customers across 100 countries. The company focuses on developing and maintaining industry-specific software solutions.
Constellation Software Inc. is listed on the Toronto Stock Exchange under the ticker “CSU”. For more information, visit: www.csisoftware.com
About Estuary
Estuary, headquartered in Vietnam, is a software technology company specializing in digital transformation solutions and technology platforms for multinational corporations. With an experienced team and a culture of innovation, Estuary aims to become a trusted global technology partner. Visit www.estuary.solutions for more details.
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