Investors / United States / Delos Capital
Delos Capital
Venture capital · Cambridge, MA, United States · North America
Delos Capital is a life sciences investment firm founded in 2014 that invests in biotech companies. It also operates a Foundry and has offices in Cambridge, Massachusetts and Hong Kong.
Invests inHealthcare & Biotech
In its own wordsbiotechlife sciencestherapeuticsdrug discoverymrnaimmunology
Your fit with Delos Capital
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsDelos Capital lists 24 checked portfolio companies on its own site and is named in 6 funding rounds. Its most frequent entry is Series B, 60% of the companies with a known first round. Its largest theme is Healthcare & Biotech (100%). 90% of its companies are based in United States. It invests most often alongside Ascension Ventures, AMED Ventures and NEA.
Counts come from funding rounds that name Delos Capital, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Round figures show recent activity, not Delos Capital's whole history. Rounds on record name 6 companies; its own site lists 24. 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.
Entry stage
share of companies by the stage of its first roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 20% |
| Series A | 0% |
| Series B | 60% |
| Growth | 20% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 0 | 0 |
| '22 | 1 | 0 |
| '23 | 0 | 0 |
| '24 | 1 | 0 |
| '25 | 2 | 0 |
| '26 | 2 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 59th | 24 companies |
| Recent activity | 69th | 2 rounds in 12 months |
| Early stage | 58th | 20% of entries at pre-seed or seed |
| Evidence | 95th | 25% of companies confirmed by a round |
| Sector focus | 100th | 100% in its largest sector |
| Reach | 59th | 3 countries |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Ascension Ventures | 5 |
| AMED Ventures | 4 |
| NEA | 4 |
| Agent Capital | 2 |
| Aisling Capital | 2 |
| Ascenta Capital | 2 |
| Avego | 2 |
| Catalio Capital Management | 2 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers24100%
- 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.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| Healthcare & Biotech | 100% | 15% |
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with Ascension Ventures
Compare Delos Capital head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with Delos Capital| Date | Company | Stage |
|---|---|---|
| 27 Jan 2026 | Series B | |
| 7 Jan 2026 | Seed | |
| 22 Sept 2025 | Round | |
| 22 Sept 2025 | Series B | |
| 23 Oct 2024 | Series C+ | |
| 7 Dec 2022 | Series B |
Round details for Delos Capital
Amounts, full round histories and every co-investor in Delos Capital's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
24 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Alpha-9 Oncology is a clinical stage radiopharmaceutical company advancing a portfolio of molecules to treat cancer cells | Healthcare & Biotech | Oct 2024Series C+ | Page + round | |
| Altrubio develops novel therapeutics for immunological diseases | Healthcare & Biotech | Portfolio page | ||
| Antios Therapeutics develops innovative therapies to treat and cure hepatitis B virus and other viral diseases. | Healthcare & Biotech | Portfolio page | ||
| Avenzo Therapeutics develops next-generation oncology therapies to transform cancer treatment | Healthcare & Biotech | Sept 2025Series B | Page + round | |
| Averna Therapeutics is developing technology to safely and effectively deliver and durably integrate large sets of genetic instructions | Healthcare & Biotech | Portfolio page | ||
| The company develops a solution for herniated disc patients | Healthcare & Biotech | Portfolio page | ||
| Cardurion translates its expertise in cardiovascular signaling pathways into groundbreaking therapeutics for patients with cardiovascular disease. | Healthcare & Biotech | Portfolio page | ||
| The company develops innovative vaccines to improve health around the world | Healthcare & Biotech | Portfolio page | ||
| Curatia Medical develops, manufactures and sells disposables in cardiac, peripheral, neuro and pulmonary fields | Healthcare & Biotech | Portfolio page | ||
| Eccogene is a clinical stage biopharmaceutical company developing small molecule therapeutics for cardiometabolic and inflammatory conditions. | Healthcare & Biotech | Portfolio page | ||
| Ensoma is an in vivo hematopoietic stem cell engineering company that creates a new kind of genomic medicine for patients around the world. | Healthcare & Biotech | Sept 2025Round | Page + round | |
| The company develops and provides innovative interventional medical devices to patients to improve their health and quality of life | Healthcare & Biotech | Portfolio page | ||
| Imperative Care develops and provides medical solutions for patients with stroke and other vascular diseases. | Healthcare & Biotech | Portfolio page | ||
| Instylla develops novel resorbable embolic agents to advance interventional radiology, with initial clinical applications in interventional oncology. | Healthcare & Biotech | Portfolio page | ||
| Liposeuticals is a next-generation specialty pharma company with a proprietary approach to reformulating sterile injectable drugs. | Healthcare & Biotech | Portfolio page | ||
| Verge Medical develops and commercializes medical technology solutions for aorto-ostial interventions. | Healthcare & Biotech | Portfolio page | ||
| Phanes Therapeutics, Inc is a clinical-stage biotech company focused on innovative drug discovery and development in immuno-oncology | Healthcare & Biotech | Portfolio page | ||
| Rejoni is involved in uterine health | Healthcare & Biotech | Dec 2022Series B | Page + round | |
| Portfolio page | ||||
| Sirius Therapeutics is developing novel RNAi therapies for global markets | Healthcare & Biotech | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- deloscapital.com
- Last read
- 5 Nov 2026
- Watching since
- 6 Nov 2026
- Rounds since
- 7 Dec 2022
- Companies checked
- 24
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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