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ARB
Harry Halloran founded the predecessor investment activity in the 1980s after an energy career that included early wind projects. Neil Halloran succeeded his...
ARB
Harry Halloran founded the predecessor investment activity in the 1980s after an energy career that included early wind projects. Neil Halloran succeeded his father in 2021. The office continues the original mandate of backing technologies that address climate change. ARB allocates to direct co-investments, SPVs, fund-of-funds commitments and hedge fund positions. Asset classes include private equity, real estate and startups. Confirmed focuses span renewable energy, water technologies, waste-to-value, energy efficiency, biomass, biofuels and sustainable agriculture. Activity remains concentrated in North America. The team comprises fewer than ten professionals and maintains one headquarters. Neil Halloran also chairs American Refining Group. Kathryn Coffey oversees investment activity and serves on boards including 3Degrees and Natural Systems Utilities. No recent operational events from the last 24 months appear in available records. ARB operates alongside Halloran Philanthropies, sharing staff and impact-investment oversight while keeping the two entities legally separate.
General information
Firm type
Single Family Office
Year founded
—
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Sewall's Point
Corporate office
Sewall's Point, FL, United States
Principals
Neil Halloran
Chairman and CEO
Kathryn Coffey
President and COO
Robert Kelly
Investment Development Director
Sector focus
Frequently asked questions
Who runs investment decisions at ARB?
Neil Halloran serves as Chairman and CEO. Kathryn Coffey, President and COO since 2011, directs all investment activity and board oversight of portfolio companies.
Does ARB participate in fund commitments or only direct deals?
ARB uses both direct co-investments and SPVs as well as fund-of-funds and hedge fund positions.
What investment stages does ARB typically target?
The office targets growth, late stage, pre-IPO, seed and startup opportunities.
How is ARB related to Halloran Philanthropies?
ARB provides financial management support and collaborates on impact investments while the two entities remain separate.
Where does the underlying wealth come from?
The capital originates from Harry Halloran's energy entrepreneurship, including early wind industry investments.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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