Investors / United States / Arboretum Ventures
Arboretum Ventures
Venture capital · Ann Arbor, MI, United States · North America
Arboretum Ventures is a healthcare venture capital firm based in Ann Arbor, Michigan, founded in 2002. It invests in early-stage healthcare companies and reports roughly $1B under management across six funds.
Invests inHealthcare & Biotech
In its own wordshealthcaremedical devicesdiagnosticslife sciences toolstech-enabled carepharma adjacencies
Your fit with Arboretum Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsArboretum Ventures lists 32 checked portfolio companies on its own site and is named in 3 funding rounds, 2 of them as lead. Its most frequent entry is Series B, 67% of the companies with a known first round. Its largest themes are Healthcare & Biotech (97%) and Industrial & Manufacturing (3%). 100% of its companies are based in United States. It invests most often alongside Hatteras Venture Partners, Western Technology Investment and Lightstone Ventures.
Counts come from funding rounds that name Arboretum 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 Arboretum Ventures' whole history. Rounds on record name 3 companies; its own site lists 32. 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 | 0% |
| Series A | 0% |
| Series B | 67% |
| Growth | 33% |
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 | 2 | 1 |
| '26 | 1 | 1 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 70th | 32 companies |
| Recent activity | 59th | 1 rounds in 12 months |
| Early stage | 54th | 0% of entries at pre-seed or seed |
| Evidence | 68th | 6% of companies confirmed by a round |
| Sector focus | 97th | 97% in its largest sector |
| Reach | 19th | 1 country |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Hatteras Venture Partners | 4 |
| Western Technology Investment | 4 |
| Lightstone Ventures | 3 |
| ID Ventures | 2 |
| Invest Michigan | 2 |
| Longitude Capital | 2 |
| Santé Ventures | 2 |
| cultivate(MD) | 2 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers3094%
- No longer answers00%
- Points to another company26%
- 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 | 97% | 15% |
| Industrial & Manufacturing | 3% | 7% |
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with Hatteras Venture Partners
Compare Arboretum 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 Arboretum Ventures| Date | Company | Stage |
|---|---|---|
| 25 Mar 2026 | Series C+ Led | |
| 4 Sept 2025 | Series B Led | |
| 13 Aug 2025 | Series B |
Round details for Arboretum Ventures
Amounts, full round histories and every co-investor in Arboretum Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
32 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Akadeum Life Sciences develops and provides cell separation technology for therapeutic applications | Healthcare & Biotech | Portfolio page | ||
| Allay Therapeutics develops technology for localized pain management. | Healthcare & Biotech | Portfolio page | ||
| ArborMetrix provides a technological framework for quality improvement in healthcare | Healthcare & Biotech | Portfolio page | ||
| AtaCor Medical designs novel extravascular defibrillation leads and deployment systems for cardiac rhythm management | Healthcare & Biotech | Portfolio page | ||
| Avation Medical develops and offers a wearable at-home treatment for overactive bladder | Healthcare & Biotech | Portfolio page | ||
Healthcare & Biotech | Portfolio page | |||
| Boomerang Medical is developing a bioelectric neuromodulation technology to treat autoimmune disease symptoms | Healthcare & Biotech | Portfolio page | ||
| The company is conducting a clinical study to test a new treatment for bowel urgency symptoms in adults with ulcerative colitis. | Healthcare & Biotech | Sept 2025Series B | Funding round | |
| BrightSpec develops and provides molecular rotational resonance spectroscopy products and solutions | Healthcare & BiotechIndustrial & Manufacturing | Portfolio page | ||
| Convergent Dental is a privately owned dental equipment and technology company. | Healthcare & Biotech | Portfolio page | ||
| Endogenex develops a system to treat type 2 diabetes using energy delivery in the small intestine to reset the body's metabolic signaling system | Healthcare & Biotech | Mar 2026Series C+ | Page + round | |
| Enumera Molecular develops a rapid, low-cost molecular counting platform for clinical diagnostics. | Healthcare & Biotech | Portfolio page | ||
| Esperion Therapeutics, Inc. develops and commercializes cardiovascular disease therapies. | Healthcare & Biotech | Portfolio page | ||
| Flosonics develops and markets a wireless, wearable ultrasound device for real-time hemodynamic assessments to clinicians | Healthcare & Biotech | Portfolio page | ||
| Francis Medical develops therapies, including the Vanquish Water Vapor Ablation System, for treating prostate tissue | Healthcare & Biotech | Portfolio page | ||
| Inogen produces and sells portable oxygen concentrators and other oxygen therapy equipment | Healthcare & Biotech | Portfolio page | ||
Healthcare & Biotech | Portfolio page | |||
| The company develops and sells products for genomic sequencing and analysis, including enzymes and kits for RNA depletion and DNA depletion. | Healthcare & Biotech | Portfolio page | ||
| Koya Medical develops and provides treatments for vascular health conditions, including edema and lymphedema. | Healthcare & Biotech | Portfolio page | ||
| Motif Neurotech builds neurotechnology to help monitor and regulate mental health and performance | Healthcare & Biotech | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- arboretumvc.com
- Last read
- 5 Nov 2026
- Watching since
- 6 Nov 2026
- Rounds since
- 13 Aug 2025
- Companies checked
- 32
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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