# Top 5 Real Estate Angel Investors in Ireland in June 2026

## Jim Mountjoy
- Type: Angel
- Relevant deals: 1
- Stages: Series A
- Focus: Software, Analytics, E-Commerce

Dr. Jim Mountjoy is the Board Director of Corvil.He is also a Deputy Chairman of Science Foundation Ireland.Dr. Mountjoy founded Euristix, an innovative supplier of advanced network management software solutions for the telecommunications industry. Euristix became a market leader and was sold to Fore Systems for US $80 million in February1999, a value that increased to US$175 million in two months when Fore Systems was acquired by Marconi.Dr. Mountjoy is currently involved as an investor and in a non-executive capacity with a number of technology companies and is a Board member of the,Abbey Theatre,Barnardos, the childrens’ charity.

## Rob Pierre
- Type: Angel
- Location: London, England, United Kingdom
- Relevant deals: 1
- Stages: Series A
- Focus: B2B, Software, Marketing

Rob Pierre is the co-founder and CEO of Jellyfish, a digital partner to some of the world’s leading brands. Today, Jellyfish is at the forefront of the global digital economy, working with brands including Uber, eBay, Spotify, Ford, Aviva Investors, and ASOS.

## Mehmet Onarcan
- Type: Angel
- Relevant deals: 1
- Stages: Seed, Angel, Pre-Seed
- Focus: Apps, Internet, Social Network

Mehmet Onarcan is the Founder of Mentors Network Turkey. He previously worked at Project House as an Advisory Board Member - Digital Transformation. Mehmet Onarcan attended Yildiz Technical University.

## Killian O’Higgins
- Type: Angel
- Relevant deals: 1
- Stages: Seed
- Focus: FinTech, Real Estate

Killian O'Higgins is a Chartered Surveyor with 37 years' experience in the Ireland, UK, Continental Europe, Middle East, USA and Asia Pacific. In Ireland, Killian started his career at Lisney before moving to Sherry FitzGerald, joining in 1983, shortly after the Sherry & Sons/FitzGerald & Partners merger. He spent 18 yearsgrowing and developing the business with a particular focus on commercial property, becoming Managing Director of DTZ Sherry FitzGerald in 1998.

## Brian Caulfield
- Type: Angel
- Location: Dublin, Dublin, Ireland
- Relevant deals: 1
- Stages: Seed, Angel, Series A
- Focus: Software, Mobile, Apps

Brian Caulfield is an entrepreneur, venture capitalist and angel investor. He is a General Partner at DFJ Esprit (http://www.dfjesprit.com/).Brian currently sits on the boards of Datahug, Movidius, MTT, Clavis Technology and the Irish Times, Ireland's leading daily newspaper. He is also a personal investor in a number ofearly stage technology companies including Cicero Networks, GridStore and Teamer.From 2002 to 2007 Brian was a partner at Trinity Venture Capital. At TVC Brian sat on the boards of or led investments in AePONA (sold to Intel - Nasdaq: INTC), ChangingWorlds (Amdocs - NYSE: DOX), CR2, SteelTrace (Compuware - NASDAQ: CPWR) and APT (CSR LSE:CSR.L). Previously, in 1992 Brian co-founded Exceptis Technologies. Exceptis provided dispute management software for the electronic/card payments sector and was sold to Trintech Group (NASDAQ: TTPA) in November 2000. In 2001 Brian co-founded Similarity Systems, a business focused data quality management software company that was acquired by Informatica (NASDAQ: INFA) in January 2006. Brian was also a founder director and shareholder of Prediction Dynamics, which failed in 2004.Brian is a Computer Engineering graduate of Trinity College Dublin. Brian was the 2007 recipient of the Irish Software Association's "Technology Person of the Year" award. In 2010 he also received the Halo Business Angel Network's Business Angel of the Year award.

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