Healionics, Inc.
Seattle, US · Delaware corporation · 6 known investors
Healionics develops STARgraft, a synthetic vascular graft built on its STAR biomaterial scaffold that resists occlusion and infection to create a reliable bloodstream access site for kidney dialysis patients. The device has received FDA Breakthrough Device designation and targets the treatment of kidney failure through dialysis.
Founders & leadership

Board
Investors · 6
Reported raises · per SEC filings
Form D private placements$18.2M disclosed across 4 rounds · 2018–2025
▶$2MraisedDec 2025 · 30 investors · OtherRule 506(b)
- Mike ConnollyExecutive Officer, Director
- Andrew MarshallDirector
- Ryan TakeuchiDirector
- Buddy RatnerDirector
- Arthur CouryDirector
- Offering amount
- $20M
- Amount sold
- $2M
- First sale
- Dec 2025
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$5.5MraisedFeb 2024 · 70 investors · OtherRule 506(b)
- Buddy RatnerDirector
- Arthur CouryDirector
- Mike ConnollyExecutive Officer, Director
- Ryan TakeuchiDirector
- Andrew MarshallDirector
- Offering amount
- $5.6M
- Amount sold
- $5.5M
- First sale
- Oct 2023
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$6.6MraisedDec 2020 · 86 investors · OtherRule 506(b)
- Andrew MarshallDirector
- Arthur CouryDirector
- Mike ConnollyExecutive Officer, Director
- Buddy RatnerDirector
- Ryan TakeuchiDirector
- Offering amount
- $10.2M
- Amount sold
- $6.6M
- First sale
- Dec 2020
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$4.2MraisedJul 2019 · 72 investors · OtherRule 506(b)
- Buddy RatnerDirector
- Mike ConnollyExecutive Officer, Director
- Arthur CouryDirector
- Andrew MarshallDirector
- Max MaginnessExecutive Officer
- Ryan TakeuchiDirector
- Offering amount
- $5M
- Amount sold
- $4.2M
- First sale
- Jun 2018
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 3
by search overlapCompanies competing with Healionics, Inc. for the same Google search keywords, organic and paid, via search-intersection analysis.
Non-dilutive funding · 12 SBIR/STTR awards
Federal grants — no equity taken| Agency | Phase | Year | Amount |
|---|---|---|---|
| National Institutes of Health (NIH)National Institutes of Health | Phase II | 2019 | $3M |
| National Institutes of Health (NIH)National Institutes of Health | Phase I | 2019 | $224.8K |
| National Institutes of Health (NIH)National Institutes of Health | Phase I | 2017 | $440.3K |
| Department of DefenseDefense Health Program | Phase II | 2016 | $999.7K |
| National Institutes of Health (NIH)National Institutes of Health | Phase II | 2015 | $1.5M |
| National Institutes of Health (NIH)National Institutes of Health | Phase II | 2015 | $1.3M |
| National Institutes of Health (NIH)National Institutes of Health | Phase I | 2014 | $224.5K |
| National Institutes of Health (NIH)National Institutes of Health | Phase I | 2014 | $206.5K |
| Department of DefenseDefense Health Program | Phase I | 2014 | $150K |
| National Institutes of Health (NIH)National Institutes of Health | Phase II | 2012 | $909.2K |
| National Institutes of Health (NIH)National Institutes of Health | Phase I | 2010 | $199.8K |
| National Institutes of Health (NIH)National Institutes of Health | Phase ISTTR | 2009 | $116.4K |
Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.
Frequently asked questions
- What does Healionics, Inc. do?
- Healionics develops STARgraft, a synthetic vascular graft built on its STAR biomaterial scaffold that resists occlusion and infection to create a reliable bloodstream access site for kidney dialysis patients. The device has received FDA Breakthrough Device designation and targets the treatment of kidney failure through dialysis.
- Who founded Healionics, Inc.?
- Healionics, Inc. was founded by Buddy Ratner.
- Who are Healionics, Inc.'s investors?
- Healionics, Inc.'s investors include Alliance of Angels, Band of Angels, Central Texas Angel Network, iSelect Fund, Keiretsu Forum, NW Angel.
- How much funding has Healionics, Inc. raised?
- Healionics, Inc. has disclosed $18.2M raised across 4 rounds.
- Where is Healionics, Inc. headquartered?
- Healionics, Inc. is headquartered in Seattle, US.

