Waterline Ventures, LLC
Emerging managerSEC exempt reporting adviser (venture capital exemption).
- HQ
- MA
Waterline Ventures invests in early growth technology and service-enabled technology companies in the healthcare space. It has backed Kinomatic, which closed a seed round led by Waterline.
01 · Says / Does
| Tag | Says | Does | Historically (to 2020) |
|---|---|---|---|
| Stages | Not stated | Not enough dated deals | Series A, Seed |
| Sectors | Healthtech | Not enough dated deals | Healthtech, Digital health, Enterprise SaaS, Insurtech |
| Regions | Not stated | Not enough dated deals | NY, MN, CA, MA |
Says: what the firm's funds state. Does: from 0 dated deals in the last 24 months.
Historical focus (through 2020), derived from historical deal data.
| Year | Deals | Top sectors |
|---|---|---|
| 2014 | 2 | Digital health, Healthtech, Consumer |
| 2015 | 1 | Healthtech, Media |
| 2016 | 3 | Healthtech, Digital health, Insurtech |
| 2017 | 2 | Healthtech, Enterprise SaaS |
| 2018 | 4 | Healthtech, Digital health, Biotech |
| 2019 | 1 | Healthtech |
| 2020 | 4 | Healthtech, Digital health, Biotech |
Stage mix over time
- Pre-seed
- Seed
- Series A
- Series B
- Growth
| Year | Pre-seed | Seed | Series A | Series B | Growth |
|---|---|---|---|---|---|
| 2014 | 0 | 1 | 1 | 0 | 0 |
| 2015 | 0 | 1 | 0 | 0 | 0 |
| 2016 | 0 | 0 | 3 | 0 | 0 |
| 2017 | 0 | 0 | 2 | 0 | 0 |
| 2018 | 0 | 0 | 1 | 2 | 0 |
| 2019 | 0 | 1 | 0 | 0 | 0 |
| 2020 | 0 | 1 | 2 | 0 | 1 |
| 2021 | 0 | 0 | 0 | 0 | 0 |
| 2022 | 0 | 0 | 0 | 0 | 0 |
| 2023 | 0 | 0 | 0 | 0 | 0 |
| 2024 | 0 | 0 | 0 | 0 | 0 |
| 2025 | 0 | 0 | 0 | 0 | 0 |
| 2026 | 0 | 0 | 0 | 0 | 0 |
02 · Fund history
| Fund | Year | Size | Status |
|---|---|---|---|
| Waterline Ventures IV, L.P. Waterline Ventures invests in early growth technology and service-enabled technology companies in healthcare. The firm focuses on healthcare alone, backing founders over multiple ventures and building financing plans suited to each company. Inferred from the firm's website | 2024 | $20.96M to $50M (Form D) | Open, writing first checks |
03 · People across funds
- Robert Greenglass, Managing Member of the General Partner
Waterline Ventures IV, L.P. (Named on Form D)
04 · Recent deals
No dated deals found yet.
05 · Latest from the firm
No news from the firm's website yet.
06 · Sources
Fund dates and sizes are from SEC Form D filings.
Last verified: Oct 28, 2026