Endotronix Announces First in Human Implantation

Cornerstone portfolio company, Endotronix, a medical technology company providing device and digital health solutions for heart failure management, announced on January 24th, 2018, a successful first-in-human implantation of the Cordella Pulmonary Artery (PA) Pressure Sensor and initiation of the SIRONA First-in-Human (FIH) clinical trial.

The wireless Cordella PA Pressure Sensor, the implantable component of the CordellaHeart Failure (HF) System, provides PA pressure data readings that clinicians interpret to guide therapy and provide proactive HF management.


Posted in Blog | Tagged , , , , | Leave a comment

Robinhood Adds Cryptocurrency Trading

Cornerstone Angels portfolio company entering the cryptocurrency space by adding zero fee cryptocurrency trading and tracking to its commission fee stock trading platform.

Five-year-old Robinhood has raised $176 million from top investors including Andreessen Horowitz, Index, and NEA that now value the company at $1.3 billion.

More details are provided through the article on Tech Crunch.

Posted in Blog | Leave a comment

Cornerstone’s Last Meeting of 2017, Along with Holiday Party

Cornerstone Angels is a private investment organization for qualified accredited investors, and has been active since 2006.  Cornerstone Angels has built up a portfolio in excess of 85 companies which have collectively raised more than $2.5 Billion in funding.

The group will be having last investment meeting of 2017 at December 13th and will combine it with a holiday event.

Each of Cornerstone’s events are by Invite Only and are for accredited investors, their guests, and suitable entrepreneurs.

This event will enable a limited number of guests to participate at this event.   If you are an accredited investor, please reach out to Michael Gruber at michael@cornerstoneangels.com to get your direct invitation.

RSVP’s required: https://guestli.st/490863


Posted in Blog | Leave a comment

EatStreet Co-Founders Named to Forbes 30 Under 30

Forbes has named EatStreet co-founders Matt Howard and Alex Wyler to its prestigious 2018 30 Under 30, unveiled today.

Howard, CEO, and Wyler, chief technology officer, were named to the consumer technology category, marking the first time Wisconsin tech startup leaders were chosen by Forbes for this category. The 30 Under 30 includes 600 winners, ranging from top entrepreneurs and innovators to philanthropists and difference-makers.

EatStreet is a portfolio company of Cornerstone Angels.  The group invested in the company through its Cornerstone Opportunity Partners, LLC investment entity.


Posted in Blog, News | Tagged , , , , , , | Leave a comment

SDBIC Assists Hurricane Victims – Understanding What to Do If Safety Deposit Boxes Damaged

SDBIC, a Cornerstone portfolio company,  announced today it established a toll-free number to provide advice and guidance to box holders whose property has been damaged or destroyed by flood waters.

Homeowners coping with rebuilding or repairing their flooded homes must also deal with having their treasured valuables and important papers in their safe deposit box damaged or even destroyed.

SDBIC is the leader in providing secure storage solutions and one of the largest insurers of assets held in safe deposit boxes in North America. Working with financial institutions and individual insureds across the country, SDBIC is changing the banking industry’s’ approach to safe deposit box service and the scope of protection provided to their customers. http://www.sdbic.com



Posted in Blog | Leave a comment

Cornerstone Portfolio Company Front Range Raises Capital & Expands

Front Range Biosciences, an agricultural biotech company that specializes in high-value crops such as cannabis, has raised $3 million in funding.

The funding will go to scaling the company’s processes and an expansion into California and other states where cannabis use is legal. The company currently operates out of Colorado.

Front Range Bioscience uses tissue culture cloning to solve for degradation of plants over cycles of harvests, which include disease, mold, pesticides, pests, etc.  By “cleansing” the clones, the company will be addressing what Cornerstone sees as the most pervasive issue in the legalized cannabis industry that will affect growers in the future – strong downward pressure on wholesale flower prices amidst increasing competitive pressures.  Increased legalization in new states, expansion of programs in existing states, and international legalization and decriminalization,  sets up a scenario for dramatically increased manufacturing capacity and as such, wholesale margins will be a big concern for producers.   Michael Gruber states that efficient cost producers will win, and Front Range will be one of the companies providing critical tools to enable a cultivator’s success.

The company is also mapping cannabis genetics to develop relevant traits in plants like disease resistance and high yields of oil and resin.

Posted in Blog, News | Tagged , | Leave a comment

Endotronix – Added $12MM Bank Loan to $32MM Series C Round

Endotronix, a Cornerstone portfolio company and maker of cloud-enabled tools that help patients with advanced heart failure, announced earlier in the year that it had raised $12 million in debt financing from Silicon Valley Bank.

The company raised a $32 million Series C round last July. That round was raised to fund a safety and feasibility study for its implantable, cloud-connected sensor for heart patients, and to help Endotronix commercialize its cloud-based software solution that lets healthcare providers monitor patients’ conditions after they leave the hospital.

Posted in Blog, News | Leave a comment

Cornerstone Portfolio Company Robinhood Raises $110MM @ $1.3B Valuation

Members of Cornerstone Angels have been early investors in Robinhood, and where the company has recently just raised $110MM in an investment led by DST Global at a $1.3B valuation.

Robinhood has achieved amazing growth in the last few years since Cornerstone’s initial investment.  The company reports that it has close to 2 million users already. The company aims to make it easy for anyone to buy and trade stocks.

Posted in Blog | Leave a comment

Portfolio Company Algal Scientific Acquired

Cornerstone’s portfolio company Algal Scientific has recently been acquired by a strategic investor in March 2017.  The company used a proprietary process and specially selected strains of algae to produce high value compounds used for animal and human health.

Cornerstone had made the investment through its Cornerstone Opportunity Partners, LLC entity.

Posted in Blog | Leave a comment

10.13.2016 – 3 Cornerstone Portfolio Companies Named on ChicagoInno’s 50 on Fire List

Intellihot, Fourkites and Page Vault, three of Cornerstone’s portfolio companies have been named on ChicagoInno’s 50 on fire list. Below is the link to the full list –



Posted in Blog | Leave a comment