Catalus Capital
Catalus Capital is a multi-strategy private equity firm founded in 2011 that invests in early- and growth-stage battery and energy storage technology companies and acts as a GP/LP allocator in lower middle market US buyout co-investments, deploying capital from offices in Greenwich, Coconut Grove, and West Palm Beach.
- Company typePrivate
- Founded2011
- HeadquartersGreenwich, United States
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Catalus Capital does
Catalus Capital is a multi-strategy private equity investment firm founded in 2011 and headquartered in Greenwich, Connecticut, with additional offices in Coconut Grove, Florida and West Palm Beach, Florida. The firm pursues two distinct investment niches: (i) direct investments in early- and growth-stage battery and energy storage technology companies — including battery materials, battery manufacturing, and storage solutions — and (ii) industry-agnostic lower middle market buyout co-investments and add-ons in which it acts as both a GP and LP allocator. Since inception, Catalus has deployed over $300 million across 24 platforms and 69 transactions including add-ons, with 31 deals closed since 2019 spread across 15 battery and energy storage portfolio companies such as Nanoramic, Forge Nano, Natron Energy, 6K, Ionblox, ZAF Energy Systems, Ecellix, Conamix, XL Batteries, Sepion, Lyten, LeydenJar, SVX, and LiNova Energy.
The firm is managed by a small team (1–10 people) led by Managing Partner and Co-Founder Marek J. Olszewski (formerly Managing Director of Corporate Strategy and M&A at Nasdaq) and Founding Member Michael J. Freeburg (who also owns SEC-registered Greenwich Wealth Management with over $2 billion AUM). Investment activities are supported by domain advisors Bart Riley (co-founder of A123 Systems and Conamix, ex-Chief Strategy Officer of QuantumScape) and Bud Collins (former CEO of NEC Energy Solutions and American Energy Solutions), giving the firm differentiated technical diligence capability in battery commercialization. The firm is registered as Catalus Capital Management LLC and operates from US offices; revenue, fund vehicle structures, and terms are not publicly disclosed.
Catalus Capital firmographics
Firmographics- Name
- Catalus Capital
- Legal name
- Catalus Capital Management LLC
- Website
- https://cataluscapital.com
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Catalus Capital is a multi-strategy private equity firm founded in 2011 that invests in early- and growth-stage battery and energy storage technology companies and acts as a GP/LP allocator in lower middle market US buyout co-investments, deploying capital from offices in Greenwich, Coconut Grove, and West Palm Beach.
- Ownership category
- akta.pro rank
Catalus Capital industry classification
Industry- Product category
- Private Equity / Venture Capital
- NAICS
- Portfolio Management and Investment Advice (523940)
- SIC
- Investment Advice (6282)
- akta.pro primary industry
- Equity Capital Advisory (Private Equity Placements, Growth Capital) (BPAHAOAE)
Keywords
Where Catalus Capital is headquartered
LocationHeadquarters
- HQ city
- Greenwich
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Catalus Capital business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Others
Catalus Capital product offering
Product offeringCore offering
Catalus Capital is a multi-strategy private equity and investment firm that deploys capital into two core niches: (1) direct investments in battery and energy storage technology companies (31 deals across 15 portfolio companies since 2019), and (2) industry-agnostic GP and LP allocations into US lower middle market buyout co-investments and add-on transactions. The firm has invested over $300 million across 24 platforms and 69 transactions since its 2011 founding, providing growth capital, strategic partnership, and operational support to portfolio companies.
Product overview
Catalus Capital is a multi-strategy private equity and investment firm offering two core investment products: (1) Energy Storage Investment through direct investments in battery and energy storage technology companies, and (2) Lower Middle Market Buyout Co-Investments as an industry-agnostic GP and LP allocator into US co-investments and add-ons. The firm deploys capital across 24 platforms and 69 transactions totaling over $300 million since inception in 2011, supporting portfolio companies in scaling their operations and technologies.
Differentiator
Problem solved
Functional benefit
Products and services
- Energy Storage Investment
- Lower Middle Market Buyout Co-Investments
Companies that use Catalus Capital
Customer profileSegments2 records
Ideal customer profiles2 records
Catalus Capital technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Catalus Capital partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- NanoramiccorePortfolio company developing Neocarbonix technology - a proprietary electrode technology that offers sustainable alternative to NMP solvent and PFAS in lithium-ion batteries. Catalus Capital invested in both $44M (December 2024) and $54M Series 1 (November 2025) funding rounds. Partnership aims to bring mass production of Neocarbonix to all major lithium-ion applications by 2027.
Scale indicators4 records
Recent moves5 records
Expansion highlights5 records
Catalus Capital competitors and assessment
Company assessmentDirect peers
- Energy Impact Partners: Global investment platform focused on energy transition and decarbonization, backed by a coalition of utilities and energy majors. Comparable as an energy-vertical-dedicated investment firm participating across the capital stack in storage and clean energy.
- Fortistar Capital: Clean energy and environmental technology investor with prior co-investment alongside Catalus in Nanoramic. Comparable as a mission-aligned private investment firm in the energy storage and clean technology verticals.
- WindSail Capital Group: Clean technology and sustainable energy investment firm that has co-invested alongside Catalus Capital in Nanoramic. Comparable as a similarly-sized thematic investor focused on energy transition opportunities.
- Chrysalix Venture Capital: Specialist venture capital firm investing in energy storage, intelligent mobility, and industrial tech. Highly comparable given its focus on battery technology and energy storage — directly overlapping Catalus's core vertical.
Broad incumbents
- Breakthrough Energy Ventures: Bill Gates-backed fund deploying patient capital across breakthrough clean energy technologies including batteries and storage. Comparable as a strategic incumbent in the same investment category, though materially larger and with longer-duration capital.
- Khosla Ventures: Large-scale venture firm investing across cleantech, AI, and frontier tech. Comparable as a broad incumbent with significant clean energy exposure including battery and storage investments, but operating at much larger scale.
Emerging players
- Clean Energy Ventures: Early-stage clean energy venture firm investing in breakthrough technologies across energy generation, storage, and mobility. Comparable as an emerging clean-energy specialist with thematic overlap in storage and battery technologies.
- Prelude Ventures: Cleantech-focused venture capital firm investing across energy, transportation, and resource efficiency. Comparable as an emerging thematic investor with overlapping exposure to energy storage and battery materials.
- 8VC: Venture firm investing in frontier technologies including energy, logistics, and biotech. Comparable as an emerging player with selective deep-tech and energy storage exposure within a broader portfolio mandate.
- DCVC (Data Collective): Deep tech venture firm investing in computational, materials, and energy technologies. Comparable as an emerging deep-tech investor with thematic overlap in advanced battery materials and energy innovation.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Catalus Capital social profiles
Digital presenceCatalus Capital financial estimates
Financial estimateRevenue estimate
Valuation estimate
Catalus Capital leadership team
Management profileNumber of profiles
Profiles6 records
Catalus Capital funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Catalus Capital M&A and investment
M&A and investmentM&A
Investments16 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Catalus Capital
What does Catalus Capital do?
Catalus Capital is a multi-strategy private equity and investment firm that deploys capital into two core niches: (1) direct investments in battery and energy storage technology companies (31 deals across 15 portfolio companies since 2019), and (2) industry-agnostic GP and LP allocations into US lower middle market buyout co-investments and add-on transactions. The firm has invested over $300 million across 24 platforms and 69 transactions since its 2011 founding, providing growth capital, strategic partnership, and operational support to portfolio companies.
Is Catalus Capital a public or private company?
Catalus Capital is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Catalus Capital founded?
Catalus Capital was founded in 2011. It employs 1 to 10 people.
Where is Catalus Capital based?
Catalus Capital is headquartered in Greenwich, United States, in the North America region.
Who are Catalus Capital's main competitors?
Direct peers on record are Energy Impact Partners, Fortistar Capital, WindSail Capital Group and Chrysalix Venture Capital. Broad incumbents are Breakthrough Energy Ventures and Khosla Ventures. Emerging players are Clean Energy Ventures, Prelude Ventures, 8VC and DCVC (Data Collective).
Does Catalus Capital have an API?
No public API is recorded for Catalus Capital.
What industry is Catalus Capital in?
Catalus Capital's product category is Private Equity / Venture Capital. Its primary akta.pro industry code is BPAHAOAE, Equity Capital Advisory (Private Equity Placements, Growth Capital). Its NAICS code is 523940 and its SIC code is 6282.