Heartland Angels

Heartland Angels is an angel investment network based in Skokie, Illinois, that aims to support seed and early-stage companies in securing investment capital and advancing their innovations. Established in 2003, the organization comprises both accredited and non-accredited investors, creating an open network focused on fostering entrepreneurial growth. Through their collective resources and expertise, Heartland Angels seeks to empower emerging businesses and contribute to their success in the competitive market.

Mark Reitsma

Managing Director

4 past transactions

Landfolk

Series A in 2024
Landfolk is a marketplace and community specializing in hand-selected second homes, particularly unique and personal summer residences. Focused on offering a curated selection of holiday homes and vacation rentals, Landfolk seeks to connect travelers with properties that provide proximity to nature, allowing for quality time spent with family and friends. The company aims to create a peaceful vacation experience at affordable prices, making distinctive vacation homes accessible for tourists seeking memorable retreats.

Attune Medical

Series C in 2017
Attune Medical develops a medical device designed to efficiently regulate patient body temperature through cooling or warming via the esophagus. The device consists of a single-use, fully-enclosed triple lumen system made from medical-grade silicone, which is inserted into the esophagus and connected to an external heat exchanger. This innovative technology allows healthcare practitioners to modulate and control patient temperature for a variety of clinical applications, including critical care, emergency medicine, burns and trauma, elective surgery, transplant surgery, sepsis, cardiology, and electrophysiology. By providing a safe and effective method for temperature management, Attune Medical aims to enhance patient outcomes in diverse medical settings.

Cardialen

Series B in 2015
CardiaLen, Inc. is a medical device company based in Minneapolis, Minnesota, specializing in the development of innovative therapies for atrial fibrillation and other heart arrhythmias. Founded in 2008, the company is focused on creating implantable, low-energy cardioverter devices that offer pain-free cardioversion therapies. These devices monitor the heartbeat and employ a proprietary series of low-energy pulses to restore normal heart rhythm while minimizing discomfort and preventing damage to heart tissue. By addressing significant unmet needs in the treatment of atrial fibrillation, CardiaLen aims to enhance patient outcomes and reduce reliance on high-energy defibrillation shocks.

Attune Medical

Series A in 2014
Attune Medical develops a medical device designed to efficiently regulate patient body temperature through cooling or warming via the esophagus. The device consists of a single-use, fully-enclosed triple lumen system made from medical-grade silicone, which is inserted into the esophagus and connected to an external heat exchanger. This innovative technology allows healthcare practitioners to modulate and control patient temperature for a variety of clinical applications, including critical care, emergency medicine, burns and trauma, elective surgery, transplant surgery, sepsis, cardiology, and electrophysiology. By providing a safe and effective method for temperature management, Attune Medical aims to enhance patient outcomes in diverse medical settings.
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