Golden Angels Investors

Golden Angels Investors is an angel investment group based in Brookfield, Wisconsin, founded in 2002. The firm focuses on investing in entrepreneurial ventures, particularly in the health tech, ed-tech, and B2B services sectors. Its members are experienced business professionals dedicated to supporting entrepreneurs in building successful companies. Golden Angels Investors actively leads investment opportunities and also participates in deals initiated by other investors, leveraging their collective expertise to foster growth in promising startups.

Mary Hannes

Associate Director

Past deals in Wisconsin

Frontdesk

Series B in 2022
Frontdesk, Inc. is a company that provides short-term rental housing for business and vacation travelers across the United States. Founded in 2017 and based in Milwaukee, Wisconsin, Frontdesk operates a digital property management platform that streamlines various aspects of property rental, including booking, cleaning, pricing, messaging, and guest screening. The company manages the entire guest experience through its proprietary technology and in-house cleaning operations, catering to a diverse clientele seeking short-term, corporate, and extended stays. By combining elements of traditional hospitality with innovative technology, Frontdesk aims to offer a secure and consistent alternative to both conventional hotel accommodations and unpredictable short-term rentals.

Immuto Scientific

Seed Round in 2021
Immuto Scientific is a biotechnology services company that provides analytical insights to pharmaceutical companies for drug discovery.

Fiveable

Venture Round in 2020
Fiveable, Inc. is an educational technology company founded in 2018 and based in Milwaukee, Wisconsin. It operates an interactive social learning platform designed specifically for Advanced Placement (AP) students and teachers. The platform facilitates engagement through live-streamed lessons, interactive discussions, and supportive communities, allowing students to connect with peers and educators. Fiveable offers resources across various subjects, including history, social science, STEM, and languages, to enhance academic and social-emotional learning. By fostering collaboration and interaction, Fiveable aims to create a dynamic educational environment that supports both teaching and learning outside of traditional classroom settings.

Fiveable

Seed Round in 2020
Fiveable, Inc. is an educational technology company founded in 2018 and based in Milwaukee, Wisconsin. It operates an interactive social learning platform designed specifically for Advanced Placement (AP) students and teachers. The platform facilitates engagement through live-streamed lessons, interactive discussions, and supportive communities, allowing students to connect with peers and educators. Fiveable offers resources across various subjects, including history, social science, STEM, and languages, to enhance academic and social-emotional learning. By fostering collaboration and interaction, Fiveable aims to create a dynamic educational environment that supports both teaching and learning outside of traditional classroom settings.

Curate

Venture Round in 2019
Curate is a civic intelligence company based in Madison, Wisconsin, specializing in Web Scraping as a Service. Founded in 2016, Curate develops data mining software that employs artificial intelligence to analyze public municipality meeting minutes and agendas. This platform is designed primarily for the construction industry, enabling general contractors and vendors to identify upcoming projects and track local government discussions. By providing a comprehensive database and customized reports, Curate empowers organizations to monitor risks and uncover opportunities within thousands of municipalities across the United States. Its technology enhances engagement with local governments, helping users stay informed about relevant policies and initiatives.

Alinea Engage

Seed Round in 2018
Alinea Engage LLC is a software development company based in Milwaukee, Wisconsin, that specializes in creating an online patient intake and engagement platform tailored for outpatient physical therapy and rehabilitation providers. Established in 2015, the company's platform facilitates the digitization of intake forms, enabling medical practices to streamline the onboarding process prior to patient appointments. By enhancing patient engagement, Alinea Engage aims to improve the overall care experience while also increasing operational efficiency and profitability for healthcare providers. The technology supports a continuum of care that fosters lasting relationships between providers and patients, ultimately enhancing patient loyalty and satisfaction.

Dynamis Software

Angel Round in 2017
Dynamis Software Corporation specializes in providing software solutions for insurance brokers to enhance collaboration with their clients. The company's flagship product, Dynamic Plan Designer, allows brokers to visually model benefit plans, facilitating easier comprehension for clients. This tool enables brokers to compare various plans, offer real-time cost updates, and manage funding options while securely storing medical and prescription plans. Incorporated in 2012 and based in Milwaukee, Wisconsin, Dynamis Software operates as a subsidiary of Applied Systems, Inc. The software aims to optimize health insurance plans, streamline the renewal process, and support brokers in closing business more efficiently.

CODAworx

Funding Round in 2017
Codaworx is an online platform that connects artists specializing in commissioned projects with individuals, organizations, and corporations seeking unique artwork. Initially known as The Art Commission, it focuses its marketing efforts on design and art professionals who represent clients interested in site-specific art. The platform not only allows artists to showcase their work but also facilitates collaboration between various stakeholders in the art community. By leveraging live events, awards programs, publications, and digital tools, Codaworx promotes public art and enhances the experience economy, underscoring the significance of creative partnerships in enriching the environments where people live and work.

Promentis Pharmaceuticals

Venture Round in 2016
Promentis Pharmaceuticals, Inc. is a biopharmaceutical company based in Milwaukee, Wisconsin, established in 2006. The company specializes in developing therapies for neuropsychiatric disorders, with a focus on addressing glutamatergic imbalance and oxidative stress. Promentis is known for its lead compound, SXC-2023, which targets System xc- to treat multiple conditions, including impulse control disorders and obsessive-compulsive disorder. In addition to SXC-2023, Promentis is also working on other compounds aimed at restoring glutamatergic neurotransmission, which is crucial for improving cortical function and managing various psychiatric disorders, including schizophrenia.

AquaMost

Venture Round in 2016
AquaMost, a privately held corporation based in Madison, Wisconsin, is the developer of water treatment systems that kill bacteria without the addition of chemicals. The company’s patented SX Reactor platform is designed specifically for the oil and gas industry, and combines multiple bacteria killing forces, including onsite generation of chlorine and hydroxyl radicals, with UV irradiation to provide a 99%+ kill rate. AquaMost has deployed systems in Texas, Colorado, Utah, and Canada.

Dynamis Software

Funding Round in 2016
Dynamis Software Corporation specializes in providing software solutions for insurance brokers to enhance collaboration with their clients. The company's flagship product, Dynamic Plan Designer, allows brokers to visually model benefit plans, facilitating easier comprehension for clients. This tool enables brokers to compare various plans, offer real-time cost updates, and manage funding options while securely storing medical and prescription plans. Incorporated in 2012 and based in Milwaukee, Wisconsin, Dynamis Software operates as a subsidiary of Applied Systems, Inc. The software aims to optimize health insurance plans, streamline the renewal process, and support brokers in closing business more efficiently.

Dock Technologies

Angel Round in 2015
Dock Technologies, Inc. is a medical device company based in Madison, Wisconsin, specializing in innovative solutions for acute care teams. Established in 2013, the company develops the INSIGHT system, which consists of a wristband designed to assist in time-critical medical situations. This wristband automatically activates a timer that counts up minute-by-minute, enabling healthcare professionals to monitor the duration of critical interventions. The system also collects, reviews, and records time points, allowing for effective visualization and analysis of data, which can be readily prepared for reporting. By providing a visual reminder of elapsed time, Dock Technologies aims to enhance the efficiency and effectiveness of care delivery in acute medical settings.

EmOpti

Venture Round in 2015
EmOpti, Inc. is a healthcare technology company based in Brookfield, Wisconsin, established in 2014. It specializes in developing tele-triage solutions that enable healthcare providers to conduct video consultations with patients in emergency rooms and urgent care clinics. The company's offerings include software, hardware, consulting, and telehealth services aimed at enhancing patient flow management and optimizing emergency medical care. By partnering with hospital systems, EmOpti helps improve performance metrics while ensuring better patient and staff experiences. Its technology not only reduces labor costs and exposure risks but also enhances patient care metrics, enabling healthcare providers to manage system capacity in real-time across multiple locations. The team comprises experienced clinicians, logistics experts, health business analysts, and software developers dedicated to innovating emergency medicine.

EmOpti

Seed Round in 2015
EmOpti, Inc. is a healthcare technology company based in Brookfield, Wisconsin, established in 2014. It specializes in developing tele-triage solutions that enable healthcare providers to conduct video consultations with patients in emergency rooms and urgent care clinics. The company's offerings include software, hardware, consulting, and telehealth services aimed at enhancing patient flow management and optimizing emergency medical care. By partnering with hospital systems, EmOpti helps improve performance metrics while ensuring better patient and staff experiences. Its technology not only reduces labor costs and exposure risks but also enhances patient care metrics, enabling healthcare providers to manage system capacity in real-time across multiple locations. The team comprises experienced clinicians, logistics experts, health business analysts, and software developers dedicated to innovating emergency medicine.

AquaMost

Debt Financing in 2015
AquaMost, a privately held corporation based in Madison, Wisconsin, is the developer of water treatment systems that kill bacteria without the addition of chemicals. The company’s patented SX Reactor platform is designed specifically for the oil and gas industry, and combines multiple bacteria killing forces, including onsite generation of chlorine and hydroxyl radicals, with UV irradiation to provide a 99%+ kill rate. AquaMost has deployed systems in Texas, Colorado, Utah, and Canada.

Dynamis Software

Angel Round in 2014
Dynamis Software Corporation specializes in providing software solutions for insurance brokers to enhance collaboration with their clients. The company's flagship product, Dynamic Plan Designer, allows brokers to visually model benefit plans, facilitating easier comprehension for clients. This tool enables brokers to compare various plans, offer real-time cost updates, and manage funding options while securely storing medical and prescription plans. Incorporated in 2012 and based in Milwaukee, Wisconsin, Dynamis Software operates as a subsidiary of Applied Systems, Inc. The software aims to optimize health insurance plans, streamline the renewal process, and support brokers in closing business more efficiently.

Fishidy

Series A in 2014
Fishidy is a map-based social networking platform tailored for anglers, designed to enhance their fishing experiences by providing critical location-based information. The platform offers interactive waterway maps that allow users to identify nearby fishing spots, plan successful outings, and log their catches. Fishidy also fosters community engagement by enabling users to share their fishing experiences and achievements on social media, thus creating a space for anglers to connect and celebrate their passion for fishing. By combining essential tools and social features, Fishidy aims to maximize the time anglers spend on the water.

AquaMost

Debt Financing in 2014
AquaMost, a privately held corporation based in Madison, Wisconsin, is the developer of water treatment systems that kill bacteria without the addition of chemicals. The company’s patented SX Reactor platform is designed specifically for the oil and gas industry, and combines multiple bacteria killing forces, including onsite generation of chlorine and hydroxyl radicals, with UV irradiation to provide a 99%+ kill rate. AquaMost has deployed systems in Texas, Colorado, Utah, and Canada.

Promentis Pharmaceuticals

Series B in 2014
Promentis Pharmaceuticals, Inc. is a biopharmaceutical company based in Milwaukee, Wisconsin, established in 2006. The company specializes in developing therapies for neuropsychiatric disorders, with a focus on addressing glutamatergic imbalance and oxidative stress. Promentis is known for its lead compound, SXC-2023, which targets System xc- to treat multiple conditions, including impulse control disorders and obsessive-compulsive disorder. In addition to SXC-2023, Promentis is also working on other compounds aimed at restoring glutamatergic neurotransmission, which is crucial for improving cortical function and managing various psychiatric disorders, including schizophrenia.

Promentis Pharmaceuticals

Debt Financing in 2013
Promentis Pharmaceuticals, Inc. is a biopharmaceutical company based in Milwaukee, Wisconsin, established in 2006. The company specializes in developing therapies for neuropsychiatric disorders, with a focus on addressing glutamatergic imbalance and oxidative stress. Promentis is known for its lead compound, SXC-2023, which targets System xc- to treat multiple conditions, including impulse control disorders and obsessive-compulsive disorder. In addition to SXC-2023, Promentis is also working on other compounds aimed at restoring glutamatergic neurotransmission, which is crucial for improving cortical function and managing various psychiatric disorders, including schizophrenia.

AquaMost

Debt Financing in 2012
AquaMost, a privately held corporation based in Madison, Wisconsin, is the developer of water treatment systems that kill bacteria without the addition of chemicals. The company’s patented SX Reactor platform is designed specifically for the oil and gas industry, and combines multiple bacteria killing forces, including onsite generation of chlorine and hydroxyl radicals, with UV irradiation to provide a 99%+ kill rate. AquaMost has deployed systems in Texas, Colorado, Utah, and Canada.

Dynamis Software

Debt Financing in 2012
Dynamis Software Corporation specializes in providing software solutions for insurance brokers to enhance collaboration with their clients. The company's flagship product, Dynamic Plan Designer, allows brokers to visually model benefit plans, facilitating easier comprehension for clients. This tool enables brokers to compare various plans, offer real-time cost updates, and manage funding options while securely storing medical and prescription plans. Incorporated in 2012 and based in Milwaukee, Wisconsin, Dynamis Software operates as a subsidiary of Applied Systems, Inc. The software aims to optimize health insurance plans, streamline the renewal process, and support brokers in closing business more efficiently.

PerBlue

Venture Round in 2012
PerBlue is an independent mobile games studio based in Madison, Wisconsin. PerBlue makes a free-to-play midcore RPG and strategy games played by millions of people around the world. From the company's bootstrapping roots that began in the founder's college apartments in 2008, the company has grown to become a venture-backed mobile gaming studio with a talented team of 40+ employees. Fueled with the passion to build great products and entertain millions of people, PerBlue endeavors to change the world with fun and innovative mobile game play.

AquaMost

Series B in 2011
AquaMost, a privately held corporation based in Madison, Wisconsin, is the developer of water treatment systems that kill bacteria without the addition of chemicals. The company’s patented SX Reactor platform is designed specifically for the oil and gas industry, and combines multiple bacteria killing forces, including onsite generation of chlorine and hydroxyl radicals, with UV irradiation to provide a 99%+ kill rate. AquaMost has deployed systems in Texas, Colorado, Utah, and Canada.

PerBlue

Series A in 2010
PerBlue is an independent mobile games studio based in Madison, Wisconsin. PerBlue makes a free-to-play midcore RPG and strategy games played by millions of people around the world. From the company's bootstrapping roots that began in the founder's college apartments in 2008, the company has grown to become a venture-backed mobile gaming studio with a talented team of 40+ employees. Fueled with the passion to build great products and entertain millions of people, PerBlue endeavors to change the world with fun and innovative mobile game play.

Ratio

Venture Round in 2010
Ratio, Inc. is a medical device company that specializes in the development and production of drug delivery pumps. The company's key product is a disposable drug delivery pump that utilizes a non-electronic, hydrogel-based technology to administer large molecule drugs and various biologics through the skin using microneedles. In addition to this, Ratio offers painless and active transdermal products designed to enhance patient comfort and improve drug delivery efficiencies. Founded in 2005, Ratio, Inc. is headquartered in Monona, Wisconsin.

Promentis Pharmaceuticals

Series A in 2010
Promentis Pharmaceuticals, Inc. is a biopharmaceutical company based in Milwaukee, Wisconsin, established in 2006. The company specializes in developing therapies for neuropsychiatric disorders, with a focus on addressing glutamatergic imbalance and oxidative stress. Promentis is known for its lead compound, SXC-2023, which targets System xc- to treat multiple conditions, including impulse control disorders and obsessive-compulsive disorder. In addition to SXC-2023, Promentis is also working on other compounds aimed at restoring glutamatergic neurotransmission, which is crucial for improving cortical function and managing various psychiatric disorders, including schizophrenia.

Promentis Pharmaceuticals

Venture Round in 2009
Promentis Pharmaceuticals, Inc. is a biopharmaceutical company based in Milwaukee, Wisconsin, established in 2006. The company specializes in developing therapies for neuropsychiatric disorders, with a focus on addressing glutamatergic imbalance and oxidative stress. Promentis is known for its lead compound, SXC-2023, which targets System xc- to treat multiple conditions, including impulse control disorders and obsessive-compulsive disorder. In addition to SXC-2023, Promentis is also working on other compounds aimed at restoring glutamatergic neurotransmission, which is crucial for improving cortical function and managing various psychiatric disorders, including schizophrenia.

Flex Biomedical

Venture Round in 2009
Flex Biomedical, Inc. is a biomedical company based in Madison, Wisconsin, founded in 2007. The company focuses on developing innovative treatments and diagnostics for orthopedic injuries and diseases. Its primary product, Flex Polymer, is a synthetic and injectable polymer specifically designed to address osteoarthritis, a chronic joint condition that impacts millions globally. By offering this treatment, Flex Biomedical aims to help patients maintain their mobility and reduce pain associated with this debilitating disease. The company markets its solutions through online retailers, making its products accessible to a broader audience.

EMSystems

Seed Round in 2004
EMSystems, LLC develops Web-based healthcare information management solutions in the United States. It offers EMResource, an inventory and resource management system; EMTrack, a patient and evacuee tracking system; EMCredential, a volunteer registry application that registers, verifies credentials, notifies, and manages volunteers in emergency situations; and EMRecord, an e-patient care record solution that allows users to collect and disseminate critical EMS patient information. The company's solutions also support shelter, dialysis, and mental health status; alert/event notification; and standard and ad-hoc reporting applications. In addition, it provides implementation, training, and customer support services. The company's solutions are used in hospitals, EMS providers, fire departments, law enforcement agencies, and health departments in the event of medical emergencies, mass casualty events, and public health incidents. EMSystems, LLC was formerly known as EMSystem.com LLC and changed its name to EMSystems, LLC in 2002. The company was founded in 1997 and is based in Milwaukee, Wisconsin.
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