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Who is FOG Software Group?

FOG Software Group is a serial acquirer based in the United States.

FOG Software Group logo
Firm facts

FOG Software Group

Type
serial acquirer
Headquarters
United States
Last verified 2026-07-27
Has FOG Software Group approached you? Here’s what to do.

How they work

FOG Software Group is a Constellation Software division that acquires, manages and grows vertical-market software businesses globally. It uses a decentralised model, says it never sells, and supports operators with capital, customers, operating practices and specialist in-house resources.

FOG buys mission-critical vertical software businesses and says it never sells them. The process starts with a conversation, an operator discussion and an NDA, then moves through fit, LOI and an in-house diligence process. FOG says the post-LOI work can take about four weeks and offers cash upfront with a high degree of closing certainty. Owners may stay or exit, while the company continues under a decentralised operating model.

Sector focus
Companies selling mission-critical software highly tailored to one or more vertical markets.
Geography
Global; FOG says borders are not a barrier and cites offices in more than 30 countries.
Ownership
Permanent ownership; FOG says it never sells. Owners can stay or exit, and businesses can continue operating as-is under the decentralised model.
Platform or bolt-on
FOG seeks to expand existing verticals and enter new markets through platform acquisitions. Smaller companies can work closely with an existing portfolio company.
Target revenue
Businesses ranging from a handful of employees to hundreds of employees; no financial-size band is published.
Capital model
FOG describes a simple structure with cash upfront.
Hold period
Permanent ownership; FOG says it never sells. Owners can stay or exit, and businesses can continue operating as-is under the decentralised model.

Sources

Approached by FOG Software Group? Talk to someone who has no reason to tell you anything but the truth.

The truth, first.Data as at 2026-07-27