Investors / United States / Mazarine Ventures
Mazarine Ventures
Venture capital · Chicago, IL, United States · North America
Mazarine Ventures is a Chicago-based venture capital firm that invested in early-stage companies whose innovations help customers manage water quantity and quality risks across B2C, B2B, and B2G markets. Its 2019 vintage fund is fully invested and the firm is no longer reviewing new investment opportunities, focusing instead on supporting its portfolio.
Invests inIndustrial & Manufacturing
In its own wordswaterwastewaterwater qualitysoftwaredata sciencecleantech
Your fit with Mazarine Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsMazarine Ventures lists 14 checked portfolio companies on its own site. Its largest themes are Industrial & Manufacturing (33%), Enterprise Software (15%) and Healthcare & Biotech (15%). 83% of its companies are based in United States. It invests most often alongside Burnt Island Ventures, Imagine H2O and 412 Venture Fund.
No funding round on record names Mazarine Ventures yet, so the figures come from its portfolio page.
Round figures show recent activity, not Mazarine Ventures' whole history. Rounds on record name 0 companies; its own site lists 14. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| Industrial & Manufacturing | 33% | 7% |
| Enterprise Software | 15% | 8% |
| Healthcare & Biotech | 15% | 15% |
| AI & Machine Learning | 15% | 18% |
| Consumer | 11% | 3% |
| Food & Agriculture | 4% | 3% |
| Real Estate & Construction | 4% | 3% |
| Space & Defense | 4% | 3% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Burnt Island Ventures | 4 |
| Imagine H2O | 3 |
| 412 Venture Fund | 1 |
| Adapt Nation Capital | 1 |
| Antler | 1 |
| Argonautic Ventures | 1 |
| Augment Ventures | 1 |
| Berkeley Catalyst Fund | 1 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 36th | 14 companies |
| Recent activity | 46th | 0 rounds in 12 months |
| Early stage | 54th | 0% of entries at pre-seed or seed |
| Evidence | 52th | 0% of companies confirmed by a round |
| Sector focus | 62th | 33% in its largest sector |
| Reach | 42th | 2 countries |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers14100%
- No longer answers00%
- Points to another company00%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with Burnt Island Ventures
Compare Mazarine Ventures head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Portfolio
14 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Aqua Membranes manufactures spiral-wound membrane elements for industrial reverse osmosis systems | Industrial & ManufacturingFood & Agriculture | Portfolio page | ||
| Biota provides real-time PFAS data and testing solutions to support companies in the PFAS remediation industry. | Enterprise SoftwareHealthcare & Biotech | Portfolio page | ||
| Clyr produces and sells pool automation controllers and water chemistry monitoring systems | Industrial & ManufacturingConsumer | Portfolio page | ||
| Conservation Labs develops and sells a smart water monitor to manage water consumption and detect leaks. | Industrial & ManufacturingReal Estate & Construction | Portfolio page | ||
| ElectraMet designs and deploys electrochemical systems for difficult semiconductor streams | Industrial & ManufacturingEnterprise Software | Portfolio page | ||
| Eqo utilizes eRNA and eDNA technologies to provide insights into the composition and functional activity of organisms within freshwater and marine ecosystems. | AI & Machine LearningHealthcare & Biotech | Portfolio page | ||
| Flume monitors and detects water leaks in homes, providing detailed water usage data and alerts | ConsumerIndustrial & Manufacturing | Portfolio page | ||
| SimpleLab provides laboratory testing services for various samples, including water, air, and soil, and offers a cloud-based platform for data management. | Healthcare & BiotechIndustrial & Manufacturing | Portfolio page | ||
| The company provides financial products and data solutions for the agriculture industry. | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| HOPE Hydration is a digital out-of-home network powered by premium water refill stations serving consumers in the world’s busiest places. | ConsumerSpace & Defense | Portfolio page | ||
| Lake Pulse provides affordable testing and monitoring tools for lakes, with results stored in a shared record | Healthcare & BiotechEnterprise Software | Portfolio page | ||
| Pani deploys powerful tools for water treatment teams to deliver actionable recommendations and perform jobs. | Industrial & ManufacturingEnterprise Software | Portfolio page | ||
| Swirltex customizes wastewater treatment systems for a wide range of applications | Industrial & ManufacturingAI & Machine Learning | Portfolio page | ||
| Waterly provides software for managing water and wastewater data | Industrial & Manufacturing | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- mazarineventures.com
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Companies checked
- 14
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
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