Catalus Capital
VC Fund
Greenwich, United States
Catalus Capital is a multi-strategy private equity firm formed in early 2011 and managed by Marek Olszewski. Catalus's first fund focuses on special opportunities throughout the capital structure with a deep value orientation. The second fund acquires technology related businesses. Platform acquisitions will have an enterprise value of $20million to $125 million and will have generated at least $3 million of trailing EBITDA.
- Total investments:
- 15
- Last investment:
- Lead investor:
- 40%
Last updated:
For AI agents: llms.txt
Industries Catalus Capital invests in
Stages Catalus Capital invests in
Countries Catalus Capital invests in
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Marek Olszewski
|
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Michael J. Freeburg
|
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Saif Qazi
|
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Investment Focus
Industry
- Energy Storage 5 (33%)
- Nanotechnology 5 (33%)
- Energy 4 (27%)
- Advanced Materials 4 (27%)
- Hardware 3 (20%)
Stage
- Series A 6 (40%)
- Series B 2 (13%)
- Series C 2 (13%)
- Funding Round 2 (13%)
- Seed 1 (7%)
Country
- United States 11 (73%)
- The Netherlands 1 (7%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
|
Marek Olszewski
Managing Partner
|
Managing Partner | Total investments: 3 | Find email | |
|
Michael J. Freeburg
Founding Member
|
Founding Member | Total investments: 0 | Find email | |
|
Saif Qazi
Vice President
|
Vice President | Total investments: 4 | Find email |
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Sepion Technologies
|
Sepion is an advanced membrane company offering a platform suite of highly-tunable nanoscale membranes for multiple industrial markets. The company was founded in 2015 and is based in Emeryville, California, United States. | $10M / Series B / Mar 26, 2026 | |
Nanoramic Laboratories
|
Nanoramic Laboratories develops energy storage technologies and materials, centering on its proprietary Neocarbonix electrode platform. The company provides an electrode solution that substitutes traditional PVDF binders and N-methylpyrrolidone solvent with a conductive 3D carbon binding structure, enabling lithium-ion batteries that offer greaterenergy density, faster charging, reduced manufacturing energy, and improved recyclability. The technology integrates seamlessly into existing manufacturing processes, supporting various battery applications, from electric vehicles to consumer electronics and stationary storage. Nanoramic also offers ultracapacitor and thermal interface products derived from its advanced carbon materials expertise, supporting enhanced power delivery and heat management in diverse uses. | $54M / Nov 17, 2025 | |
|
Nanoramic Laboratories
|
Nanoramic Laboratories develops energy storage technologies and materials, centering on its proprietary Neocarbonix electrode platform. The company provides an electrode solution that substitutes traditional PVDF binders and N-methylpyrrolidone solvent with a conductive 3D carbon binding structure, enabling lithium-ion batteries that offer greaterenergy density, faster charging, reduced manufacturing energy, and improved recyclability. The technology integrates seamlessly into existing manufacturing processes, supporting various battery applications, from electric vehicles to consumer electronics and stationary storage. Nanoramic also offers ultracapacitor and thermal interface products derived from its advanced carbon materials expertise, supporting enhanced power delivery and heat management in diverse uses. | $44M / Venture - Series Unknown / Dec 12, 2024 | |
LiNova Energy
|
LiNova Energy is a developer of ultra-high energy density batteries. The company pairs its Polymer Cathode with a novel 3-D Lithium Metal anode, a non-flammable electrolyte, and a dendrite-blocking membrane to deliver a sustainable energy storage solution. It reduces the cost of the cathode active material by over 75%, reduces battery weight, anddecreases the CO2 emissions associated with the production of traditional cathode materials by over 85%. | $15.8M / Series A / Apr 30, 2024 | |
Forge Nano
|
Forge Nano develops materials engineering technologies focused on precision surface coatings and advanced battery materials. The company applies atomic layer deposition processes to modify powders at the nanoscale, enabling improvements in energy storage, semiconductor components, and industrial materials. Its offerings include coating equipmentsystems as well as engineered materials used in lithium-ion batteries and other applications. The company also supports partners with process development and integration of coating techniques into manufacturing workflows. Its work spans sectors such as electronics, energy storage, and specialty materials, where controlled surface properties influence performance and durability. | $50M / Series C / May 30, 2023 | |
Ionblox
|
Zenlabs has developed proprietary silicon-based formulations that offer higher specific capacity, longer cycle life, and lower cost. Zenlabs' anodes are unique in their high loading level and high active silicon content. In addition, Zenlabs has solved the common problems with silicon based anodes such as poor cycling and swelling. Zenlabscombines these high capacity anodes with high capacity cathode materials in large format pouch cells to achieve energy densities that are much higher than what is commercially available. | $32M / Series B / Feb 08, 2023 | |
|
Ionblox
|
Zenlabs has developed proprietary silicon-based formulations that offer higher specific capacity, longer cycle life, and lower cost. Zenlabs' anodes are unique in their high loading level and high active silicon content. In addition, Zenlabs has solved the common problems with silicon based anodes such as poor cycling and swelling. Zenlabscombines these high capacity anodes with high capacity cathode materials in large format pouch cells to achieve energy densities that are much higher than what is commercially available. | $24M / Series B / Oct 26, 2022 | |
Sylvatex, Inc.
|
Sylvatex has developed a renewable nano-chemistry platform that has applications in solutions for industry processing, materials stability, and fuels. Our mission is to increase the use of renewables globally, to empower a cleaner, healthier future. The first application is a fuel technology that utilizes our knowledge to scale low-cost,cleaner-burning fuels and additives by using a co-location commercial model with early strategic partners and customers in place. Sylvatex has also completed the first phase of development on a lithium ion battery processing application and has established collaborations with national labs and the USDA to expand on these applications.Growing mandates for fuels with lower emissions make the need for cleaner burning, lower cost diesel and other petroleum unavoidable. Our fuel application creates a low-carbon diesel fuel alternative that is easily scalable and cost-competitive in these depressed market prices. Sylvatex was founded by Virginia Klausmeier and is based in San Francisco, California. | $8.4M / Series A / Sep 20, 2022 | |
XL Batteries
|
XL Batteries develops a technology platform to reduce waste formation. The company was founded in 2019 and is headquartered in Brooklyn, New York. | Sep 07, 2022 | |
|
XL Batteries
|
XL Batteries develops a technology platform to reduce waste formation. The company was founded in 2019 and is headquartered in Brooklyn, New York. | $10M / Seed / Sep 07, 2022 | |
| See all 15 investments → | |||
Co-Investors
Applied Ventures
2 deals together
Fortistar
2 deals together
General Motors Ventures
2 deals together
Lilium
2 deals together
Samsung Venture Investment
2 deals together
Top Material
2 deals together
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FAQ
What does Catalus Capital invest in?
Catalus Capital invests primarily in Energy Storage, Nanotechnology and Energy startups, most often at Series A and Series B stage. Most of the 15 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Catalus Capital?
Public channels for Catalus Capital include LinkedIn, the website linked on this profile and Facebook. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at Catalus Capital?
The team at Catalus Capital includes Marek Olszewski (Managing Partner), Michael J. Freeburg (Founding Member) and Saif Qazi (Vice President). The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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