Cathexis Holdings LP
Family officeInvestment thesis
Cathexis operates as a private investment holding company rather than a traditional fund, using a permanent capital base to pursue a long-term investment horizon. Its structure emphasizes alignment with management teams, speed of execution, and flexibility in transaction structures. The company holds and operates businesses across multiple sectors, including mechanical and electrical engineering contracting (Jones Engineering, Leo Lynch), hyperscale data center development globally, mineral rights in the Eagle Ford Shale, utility-scale solar and storage through Redeux Energy, and large-scale urban mixed-use and multifamily real estate developments in Houston, Boston, and Southern California. It also holds an early-stage venture capital arm, Cathexis Ventures.
Source: firm website, verified Aug 3, 2026.
What they invest in
from 2 of 6 portfolio companiesEnergy Γ2Cleantech Γ1Climate Tech Γ1Construction Tech Γ1
HQs:IrelandΓ1United StatesΓ1
Investments Β· 6 tracked
founders shown can be your intro pathRedeux develops utility-scale solar and battery energy storage projects to support the US transition to a clean, reliable electric grid.
CleantechClimate TechEnergyHouston, US
Rob Masinter(Chief Executive Officer)in
BoardW. Aaron Bowlds(Board Member)
Co-investorsYorktown Energy Partners
Early-stage venture capital arm
Mixed-use development in Houston, USA
Jones Engineering is a company founded by Harry Austin O'Neil, a plumber who brought expertise from the United States back to Ireland to establish operations in Dublin.
Construction TechEnergyCork, IE
Harry Austin O'NeilStephen McCabe(Chief Executive Officer)inShane Gillece(Chief Operating Officer)in
Mechanical and electrical engineering contractor focused on semiconductor and pharma projects
Mixed-use development in Boston, USA
Frequently asked questions
- How many investments has Cathexis Holdings LP made?
- Cathexis Holdings LP has 6 tracked investments.
- What sectors does Cathexis Holdings LP focus on?
- Cathexis Holdings LP focuses on Cleantech, Construction Tech, Energy, New Materials, PropTech, Sector Agnostic, Semiconductors.
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