RedDrop Dx
5 known investors
RedDrop Dx makes a capillary blood collection device for virtually pain-free, one-click sampling that produces higher blood volume and reliable samples. The product uses 1mL tubes designed for high-throughput labs and is aimed at patients, providers, and lab partners in healthcare.
Also known as RedDrop · RedDrop™
Investors · 5
Also in the syndicate · 2
Funding
SEC filings, press & company announcements- Undisclosed amountSeries SeedDec 2025
Innosphere Ventures (lead), Stout Street Capital (lead), Breakthrough Venture Capital
Source ↗ - Undisclosed amountpre-seedSep 2022
Innosphere Ventures Fund
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026RedDrop Dx offers a capillary blood collection device intended to make blood sampling usable outside traditional phlebotomy settings, including at-home collection. The device is activated with a single one-finger press and provides audible and visual feedback, including a color indicator and a click sound, so users can confirm the device has been triggered correctly. The company describes the sampling experience as virtually pain-free and characterizes the design goal as democratizing capillary blood sampling for healthcare at scale.
Samples are collected into 1mL tubes that the company states are engineered for high-throughput, automation-ready laboratory processing, with the aim of consistent sample volume and integrity across collections. Positioning materials frame the product around three constituencies simultaneously: patients performing the collection, providers, and laboratory or commercial partners integrating the device into existing workflows.
Business model
The company positions itself as supplying its collection device to patients, providers, and laboratory and healthcare partners, with emphasis on integration into existing high-throughput lab workflows. Its website includes cart and checkout functionality with pricing denominated in USD and shipping to the United States.
▸Full profile — market position, technology, go-to-market, geography
Market position
The company positions its device against other capillary blood collection devices, with laboratory customer testimonials on its site asserting that alternatives are clumsy, unreliable and painful, and that RedDrop Dx yields greater blood volume and better samples.
Stated points of differentiation are minimal discomfort with a single click, confirmation feedback through audible and visual indicators to reduce user uncertainty about correct activation, higher recovered blood volume relative to other capillary devices according to lab testimonials, and 1mL tubes compatible with automated high-throughput lab processing.
Technology
The product is a capillary blood collection device with one-step, one-finger activation and audible and visual confirmation indicators (including a color indicator and an audible click). Blood is collected into 1mL tubes described as automation-ready for high-throughput laboratory equipment, with stated design targets of consistent volume and sample integrity.
Go-to-market
Marketing emphasizes partner-led distribution and integration alongside direct online ordering, with messaging aimed at labs and partners that would deploy the device at scale as well as at patients and providers.
Patients performing self-collection, healthcare providers, clinical and diagnostic laboratories, and commercial or healthcare partners integrating capillary sampling into their offerings.
Geography
The company's online store lists the United States as the shipping destination with billing in USD.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
In the news
▸Research sources · 1
primary sources listed
- RedDrop Dxreddropdx.com · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does RedDrop Dx do?
- RedDrop Dx develops a one-click capillary blood collection device for at-home sampling and high-throughput lab workflows.
- Who are RedDrop Dx's investors?
- RedDrop Dx's investors include Chicago Early Growth Ventures (CEGV), Innosphere Ventures, Stout Street Capital.