Grattan Investment Group
Founders helping Founders
19 Grattan Street, Dublin 2, Ireland
Grattan brings together experienced business founders and CEOs who invest equity in established businesses with strong growth potential. We contribute practical expertise, operational experience and extensive networks to support management teams and build sustainable, long-term value
Founded in 2025, Grattan Investment Group (“GIG”) is a business name of Ireland registered company, GIG Capital Partners Limited (“GCP”). GIG is a founder-led investment group that makes active equity investments in private businesses across all stages of development. We partner with founders and management teams, contributing capital, practical expertise and extensive networks to accelerate sustainable growth and build enduring businesses
Partner Businesses
Partnerships are a key part of Grattan Investment Groups growth strategy, with many overlapping directors and executives​​
​​​​Doha Holdings Limited: ("Doha") An investment company headed by Paul McKanna. Paul is the founder and Chairman of the Mac Group. Doha are an investor into Acel Energy and Estars.
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Malcolm Holdings Limited: An investment company headed by Gregory Rose. Gregory is the Chairman and Group Chief Executive Officer of Lynch Insurance Brokers Ltd. Malcolm is an investor into SCG Growth Partners
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Cloonmaan Limited: Cloonmaan Limited is the Irish investment vehicle of Barry and Ruth O’Brien. Through Cloonmaan, they make strategic co-investments alongside trusted partners, including in SCG Growth Partners with GIG member Gregory Rose; Tay Lane Properties with fellow GIG members Paul Murphy and Eamon Farrell; and Acel Energy with Paul McKenna.