Investors / United States / Altitude Life Science Ventures
Altitude Life Science Ventures
Venture capital · Kirkland, WA, United States · North America
Altitude Life Science Ventures is a life science venture firm founded in 2006 that has invested in 46 portfolio companies across four funds. It invests in early stage life science companies and works with them on intellectual property strategic planning.
Invests inHealthcare & Biotech
In its own wordslife sciencesbiotechtherapeuticsdiagnosticsmedical devicesai drug discovery
Your fit with Altitude Life Science Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsAltitude Life Science Ventures lists 14 checked portfolio companies on its own site and is named in 4 funding rounds. Its most frequent entry is Seed, 50% of the companies with a known first round. Its largest themes are Healthcare & Biotech (93%) and AI & Machine Learning (7%). 100% of its companies are based in United States. It invests most often alongside ARCH Venture Partners, Flagship Pioneering and ARK Venture Fund.
Counts come from funding rounds that name Altitude Life Science Ventures, 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 Altitude Life Science Ventures' whole history. Rounds on record name 2 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.
Entry stage
share of companies by the stage of its first roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 50% |
| Series A | 0% |
| Series B | 50% |
| Growth | 0% |
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 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 4 | 0 |
| '26 | 0 | 0 |
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 | 73th | 50% of entries at pre-seed or seed |
| Evidence | 85th | 14% of companies confirmed by a round |
| Sector focus | 96th | 93% in its largest sector |
| Reach | 19th | 1 country |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| ARCH Venture Partners | 5 |
| Flagship Pioneering | 5 |
| ARK Venture Fund | 2 |
| Dauntless Ventures | 2 |
| General Catalyst | 2 |
| T1D Fund | 2 |
| 8VC | 1 |
| AN Venture Partners | 1 |
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.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| Healthcare & Biotech | 93% | 15% |
| AI & Machine Learning | 7% | 18% |
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with ARCH Venture Partners
Compare Altitude Life Science Ventures 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 Altitude Life Science Ventures| Date | Company | Stage |
|---|---|---|
| 14 Oct 2025 | Series A | |
| 1 Oct 2025 | Series B | |
| 13 Sept 2025 | Series A | |
| 12 Mar 2025 | Seed |
Round details for Altitude Life Science Ventures
Amounts, full round histories and every co-investor in Altitude Life Science Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
14 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Aera Therapeutics develops delivery platforms for genetic medicines | Healthcare & Biotech | Portfolio page | ||
| Altos Labs is focused on understanding how to translate the science of cell rejuvenation to help people live healthier lives. | Healthcare & Biotech | Portfolio page | ||
| Ansa Biotechnologies synthesizes custom DNA sequences for its customers. | Healthcare & Biotech | Oct 2025Series B | Page + round | |
| Portfolio page | ||||
| City Therapeutics is a clinical-stage biotechnology company developing the next generation of RNAi therapeutics designed to silence the expression of disease-relevant proteins | Healthcare & Biotech | Portfolio page | ||
| The company designs medicines for any protein and every patient using a combination of chemistry, engineering, biology, and AI | Healthcare & Biotech | Portfolio page | ||
| Generate Biomedicines creates breakthrough medicines using generative biology and machine learning | Healthcare & Biotech | Portfolio page | ||
| Interdict Bio develops small molecules that interrupt the supply of pathogenic proteins to cells by inhibiting protein synthesis by the ribosome in a context-dependent manner. | Healthcare & Biotech | Portfolio page | ||
| LILA generates hypotheses, designs and runs experiments, and learns from new data in real time using advanced AI and autonomous labs | AI & Machine LearningHealthcare & Biotech | Mar 2025Seed · 3 rounds | Page + round | |
| Mozart Therapeutics is a clinical-stage biopharmaceutical company committed to developing therapies that effectively treat and potentially cure autoimmune disease. | Healthcare & Biotech | Portfolio page | ||
| Ring Therapeutics is pioneering a new class of targeted medicines that deliver more | Healthcare & Biotech | Portfolio page | ||
| Sail Biomedicines is building a new class of RNA medicines that act directly inside the body to develop potentially curative medicines for patients with immune-mediated diseases. | Healthcare & Biotech | Portfolio page | ||
| Tessera Therapeutics is developing a new approach to genome engineering called Gene Writing to treat diseases at their source | Healthcare & Biotech | Portfolio page | ||
| Vilya pioneers computational drug design to create de novo macrocycles — entirely new molecules inspired by biology but designed from first principles through AI-driven methods. | Healthcare & Biotech | Portfolio page |
About this data
site last read 8 Nov 2026- Site
- altitudelsv.com
- Last read
- 8 Nov 2026
- Watching since
- 6 Nov 2026
- Rounds since
- 12 Mar 2025
- 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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