Oak HC/FT

Oak HC/FT, established in 2014 and based in Stamford, Connecticut, is a leading venture and growth equity investment firm. It specializes in healthcare information services and financial service technology, focusing on driving industry transformation by providing strategic counsel, board-level participation, and access to an extensive network of industry leaders to entrepreneurs and companies. Over the past decade, Oak HC/FT's partners have facilitated 29 realizations, including four IPOs and six companies valued over $1 billion. The firm manages multiple funds, investing between $5 million and $50 million in growth-stage companies and up to $35 million in earlier-stage ventures across the United States and Europe.

Andrew Adams

Co-Founder and Managing Partner

Charlotte Black

Vice President

Nancy G. Brown

General Partner

Vig Chandramouli

Partner

Billy Deitch

Partner

Jade Nguyen

Senior Associate

Chris Price

Partner

Felix Schliemann

Associate

Charlotte Smith

Senior Associate

Matthew Streisfeld

General Partner

Past deals in Health Diagnostics

Candid Health

Series C in 2025
Candid Health is a platform that automates revenue cycle management for healthcare providers, facilitating efficient tracking of claims and management of billing processes. Utilizing machine learning and artificial intelligence, the platform streamlines medical billing, coding, and claims processing, thereby reducing administrative burdens and enhancing operational efficiency. By offering end-to-end automation, Candid Health optimizes financial operations for clinics and hospitals, allowing healthcare providers to concentrate on delivering quality, affordable, and accessible care while ensuring faster service reimbursement. The platform seamlessly integrates with existing systems, providing modern tools that simplify the complexities of medical billing and improve overall patient experiences.

Evergreen Nephrology

Venture Round in 2025
Evergreen Nephrology focuses on enhancing kidney care for patients suffering from kidney disease by supporting nephrologists with strategic partnerships and comprehensive resources. The organization aims to improve patient experiences by providing interdisciplinary clinical support, analytical insights, and necessary services. Their approach emphasizes delaying disease progression, facilitating home-based kidney care, and ensuring timely access to organ transplants and dialysis. By empowering nephrologists with financial backing and tools, Evergreen Nephrology seeks to transform kidney care, ultimately improving patient quality of life and increasing healthy days at home.

Trovo Health

Seed Round in 2024
Trovo Health specializes in AI-driven healthcare solutions, offering a platform that combines AI technology with professional human coaching to deliver personalized patient care. Their AI assistance is designed to enhance healthcare providers' capabilities, improving patient outcomes and operational efficiency by leveraging specialty-specific models and workflows.

Vesta Healthcare

Venture Round in 2024
Vesta Healthcare is a technology and clinical services organization that focuses on enhancing the connection between caregivers and the broader care team. The company provides 24/7 telehealth support for caregivers and care recipients, particularly targeting high-need, frail senior populations. By partnering with home care agencies, health plans, and healthcare providers, Vesta Healthcare develops value-based population health programs that prioritize clinical quality, improved health outcomes, and personalized engagement. Originally established as Hometeam Technologies, Inc. in 2008, the company rebranded to Vesta Healthcare in January 2020 and is headquartered in New York, New York.

Firefly Health

Venture Round in 2022
Firefly Health, Inc. is a Massachusetts-based company that develops an artificial intelligence-driven platform to connect patients with healthcare professionals. Founded in 2016, it focuses on providing primary healthcare services that emphasize accessibility and quality. The platform allows users to navigate their health while offering care for common conditions such as back pain, stomach flu, and women's health issues. Firefly Health utilizes a virtual-first approach, enabling patients to access live video appointments with primary care physicians without membership fees. This model facilitates continuous and intelligent care, empowering patients to make informed health choices and allowing clinicians to deliver consistent and proactive support.

Brightline

Series C in 2022
Brightline, Inc. is a provider of pediatric behavioral health care services, established in 2019 and headquartered in Palo Alto, California. The company offers a range of services including behavior therapy, psychiatry and medication support, speech-language therapy, and occupational therapy. Brightline operates as a technology-enabled behavioral health home, utilizing innovative technology and virtual services to deliver integrated care. Its collaborative care team focuses on supporting children throughout their developmental stages and addressing the needs of their families. Brightline was previously known as Emilio Health, Inc. and rebranded in May 2020.

Syllable

Series C in 2022
Syllable is a technology company that develops a platform designed to enhance communication between patients and healthcare providers through text and voice interactions. The platform enables patients to access vital healthcare information regarding primary care, specialty referrals, vaccinations, and general practice, facilitating guidance outside of traditional clinical settings. Additionally, Syllable focuses on building AI agents and managing AI operations, integrating tools and services from third-party providers of large language models and AI technologies, which further supports its mission to improve patient-provider communication.

Reveleer

Venture Round in 2021
Reveleer is a healthcare software and services company that operates a Software-as-a-Service analytics platform focused on medical record analysis and targeted solutions. Founded in 2009 and based in Glendale, California, the company enables payers across Medicare, Medicaid, and commercial sectors to effectively manage risk adjustment and quality improvement programs. Reveleer's platform provides a comprehensive suite of services, including medical record collection, retrieval, coding, and abstraction, all integrated into a single system. Additionally, the company offers professional services such as abstractor training, auditing, and strategic assessments to enhance operational practices and data management. Formerly known as Health Data Vision, Inc., Reveleer rebranded in August 2019 to reflect its commitment to empowering healthcare organizations to take control of their data and improve coding accuracy.

Quartet Health

Corporate Round in 2021
Quartet Health is a New York-based company that develops a cloud-based platform designed to enhance communication and collaboration between medical providers and behavioral health providers for patient care. Founded in 2014, Quartet's platform works with health plans and systems to deliver actionable insights and reports on behavioral health conditions, aiming to improve patient outcomes. The platform also offers tools for patient self-management and ensures that mental health care is tailored to individual preferences and clinical needs, while being integrated with the broader healthcare experience and insurance coverage.

Notable

Series B in 2021
Notable is an AI-driven platform designed to enhance healthcare operations and improve physician-patient interactions. Deployed at over 10,000 care sites, it automates more than a million repetitive workflows daily, including processes related to registration, scheduling, authorizations, and chart reviews. The platform features a voice-powered application that organizes physician-patient conversations and dictations while securely recommending appropriate billing codes. By streamlining these tasks, Notable reduces manual workload for caregivers and fosters personalized care for patients, ultimately contributing to better financial health for healthcare providers.

Infusion for Health

Venture Round in 2021
Infusion for Health, Inc. is a network of ambulatory infusion centers based in Thousand Oaks, California, specializing in infusion therapy for patients with complex and chronic conditions. The company offers a range of services, including treatments for multiple sclerosis, rheumatoid arthritis, Crohn’s disease, ulcerative colitis, chronic anemia, and various autoimmune and immunodeficiency disorders. Additionally, Infusion for Health provides hydration therapy for conditions such as morning sickness and influenza, along with antibiotic therapy. By leveraging modern medical technology, the company aims to effectively address the needs of patients suffering from these challenging health issues.

Wayspring

Series D in 2021
Wayspring is a healthcare organization dedicated to providing medical, behavioral health, and social support services to individuals with complex needs, particularly those living with substance use disorder. The organization employs a comprehensive, longitudinal model that emphasizes targeted outreach to members, strategic partnerships with providers, and community-based peer support. By focusing on individualized care, Wayspring ensures that patients have their fundamental needs addressed, including access to healthcare, economic stability, and social connections. This approach aims to enhance adherence to evidence-based medical practices, reduce healthcare waste, and ultimately improve health outcomes for its patients.

Cricket Health

Series B in 2021
Cricket Health Inc. is a specialty kidney care provider focused on delivering integrated nephrology and dialysis services for individuals with Chronic Kidney Disease (CKD) and End Stage Renal Disease (ESRD). Founded in 2015 and based in San Francisco, California, the company employs a technology-enabled, evidence-based approach to manage kidney diseases. Cricket Health aims to enhance patient outcomes and value for healthcare partners by providing multidisciplinary care both in-person and virtually. Their services are designed to keep patients healthy, reduce hospitalizations, accelerate access to transplants, and promote home dialysis adoption. By identifying at-risk patients and acting early, Cricket Health supports personalized treatment options that include transplant support, home dialysis, conservative care, and in-center dialysis.

VEDA Data Solutions

Series B in 2021
VEDA Data Solutions, Inc. specializes in providing automated data science and machine learning solutions tailored for healthcare directories. Founded in 2015 and headquartered in Washington, D.C., with an additional location in Madison, Wisconsin, VEDA offers innovative products such as Alchemy, which streamlines workflows and enhances data transformation for healthcare networks and rosters. Another key offering, Sentinel, serves as a data monitoring engine that efficiently reads, interprets, translates, and exports various roster and claims data. By automating these processes, VEDA addresses the critical challenges faced by healthcare payers and networks, enabling them to access essential data insights without the need for costly and scarce data scientists.

Syllable

Series B in 2021
Syllable is a technology company that develops a platform designed to enhance communication between patients and healthcare providers through text and voice interactions. The platform enables patients to access vital healthcare information regarding primary care, specialty referrals, vaccinations, and general practice, facilitating guidance outside of traditional clinical settings. Additionally, Syllable focuses on building AI agents and managing AI operations, integrating tools and services from third-party providers of large language models and AI technologies, which further supports its mission to improve patient-provider communication.

Main Street Health

Funding Round in 2021
Main Street Health is a provider of value-based, care-focused healthcare services aimed at addressing rural wellness concerns. The company's healthcare services are data-driven, and it provides partner clinics with employees, technology, critical access hospitals, community health centers, and possibilities to flourish in the care delivery model, allowing rural residents to receive the high-quality treatment they need.

Brightline

Series B in 2021
Brightline, Inc. is a provider of pediatric behavioral health care services, established in 2019 and headquartered in Palo Alto, California. The company offers a range of services including behavior therapy, psychiatry and medication support, speech-language therapy, and occupational therapy. Brightline operates as a technology-enabled behavioral health home, utilizing innovative technology and virtual services to deliver integrated care. Its collaborative care team focuses on supporting children throughout their developmental stages and addressing the needs of their families. Brightline was previously known as Emilio Health, Inc. and rebranded in May 2020.

AllyAlign Health

Venture Round in 2021
AllyAlign Health operates as a care management company dedicated to supporting patients with chronic and complex medical conditions. Founded in 2013 and based in Glen Allen, Virginia, the company offers an active care management platform that facilitates real-time, collaborative care across various boundaries. This platform connects patients with care teams, providers, and community-based services, ensuring access to essential health information, care plans, and benefits necessary for informed decision-making. Users can easily view, share, create, and update information according to their roles and responsibilities, with mobile and web-based options enhancing accessibility for patients and their families. A central, HIPAA-compliant database consolidates information from multiple sources, including electronic health records and lab tests, while semantic data modeling provides meaningful clinical insights.

Main Street Health

Series A in 2021
Main Street Health is a provider of value-based, care-focused healthcare services aimed at addressing rural wellness concerns. The company's healthcare services are data-driven, and it provides partner clinics with employees, technology, critical access hospitals, community health centers, and possibilities to flourish in the care delivery model, allowing rural residents to receive the high-quality treatment they need.

Noom

Series F in 2021
Noom, Inc. is a New York-based company that specializes in mobile health coaching through a psychology-based digital health platform. Founded in 2008, Noom develops a mobile application that combines evidence-based curricula, personalized coaching, and data-driven insights to help users achieve their health and wellness goals, including weight management and chronic disease prevention. The platform offers scalable tools for exercise and nutrition coaching, utilizing artificial intelligence to facilitate behavioral change. Recognized for its innovative approach, Noom has received multiple grants from the National Institutes of Health and was the first mobile application certified by the Centers for Disease Control as a diabetes prevention program. The company also caters to business enterprises, supporting organizations in promoting employee health. With additional offices in Seoul and Tokyo, Noom continues to expand its global reach and impact on personal health management.

Firefly Health

Series B in 2021
Firefly Health, Inc. is a Massachusetts-based company that develops an artificial intelligence-driven platform to connect patients with healthcare professionals. Founded in 2016, it focuses on providing primary healthcare services that emphasize accessibility and quality. The platform allows users to navigate their health while offering care for common conditions such as back pain, stomach flu, and women's health issues. Firefly Health utilizes a virtual-first approach, enabling patients to access live video appointments with primary care physicians without membership fees. This model facilitates continuous and intelligent care, empowering patients to make informed health choices and allowing clinicians to deliver consistent and proactive support.

Vesta Healthcare

Venture Round in 2021
Vesta Healthcare is a technology and clinical services organization that focuses on enhancing the connection between caregivers and the broader care team. The company provides 24/7 telehealth support for caregivers and care recipients, particularly targeting high-need, frail senior populations. By partnering with home care agencies, health plans, and healthcare providers, Vesta Healthcare develops value-based population health programs that prioritize clinical quality, improved health outcomes, and personalized engagement. Originally established as Hometeam Technologies, Inc. in 2008, the company rebranded to Vesta Healthcare in January 2020 and is headquartered in New York, New York.

Brightline

Series A in 2020
Brightline, Inc. is a provider of pediatric behavioral health care services, established in 2019 and headquartered in Palo Alto, California. The company offers a range of services including behavior therapy, psychiatry and medication support, speech-language therapy, and occupational therapy. Brightline operates as a technology-enabled behavioral health home, utilizing innovative technology and virtual services to deliver integrated care. Its collaborative care team focuses on supporting children throughout their developmental stages and addressing the needs of their families. Brightline was previously known as Emilio Health, Inc. and rebranded in May 2020.

Wayspring

Series C in 2020
Wayspring is a healthcare organization dedicated to providing medical, behavioral health, and social support services to individuals with complex needs, particularly those living with substance use disorder. The organization employs a comprehensive, longitudinal model that emphasizes targeted outreach to members, strategic partnerships with providers, and community-based peer support. By focusing on individualized care, Wayspring ensures that patients have their fundamental needs addressed, including access to healthcare, economic stability, and social connections. This approach aims to enhance adherence to evidence-based medical practices, reduce healthcare waste, and ultimately improve health outcomes for its patients.

Vesta Healthcare

Series A in 2020
Vesta Healthcare is a technology and clinical services organization that focuses on enhancing the connection between caregivers and the broader care team. The company provides 24/7 telehealth support for caregivers and care recipients, particularly targeting high-need, frail senior populations. By partnering with home care agencies, health plans, and healthcare providers, Vesta Healthcare develops value-based population health programs that prioritize clinical quality, improved health outcomes, and personalized engagement. Originally established as Hometeam Technologies, Inc. in 2008, the company rebranded to Vesta Healthcare in January 2020 and is headquartered in New York, New York.

Komodo Health

Series C in 2020
Komodo Health Inc. is a healthcare technology company that develops a platform designed to enhance transparency and intelligence in the healthcare sector. Founded in 2014 and headquartered in New York, with an additional office in San Francisco, the company offers a suite of software applications, including its Healthcare Map, which tracks patient outcomes throughout the healthcare system. Its solutions, such as Aperture and Pulse, leverage advanced data science techniques to provide real-time insights and alerts on clinical information, while Serenity analyzes patient cohorts for deeper understanding. By serving various stakeholders, including life sciences companies, healthcare payers, and providers, Komodo Health aims to foster a more efficient and value-driven healthcare ecosystem through comprehensive patient-level insights.

Brightline

Seed Round in 2019
Brightline, Inc. is a provider of pediatric behavioral health care services, established in 2019 and headquartered in Palo Alto, California. The company offers a range of services including behavior therapy, psychiatry and medication support, speech-language therapy, and occupational therapy. Brightline operates as a technology-enabled behavioral health home, utilizing innovative technology and virtual services to deliver integrated care. Its collaborative care team focuses on supporting children throughout their developmental stages and addressing the needs of their families. Brightline was previously known as Emilio Health, Inc. and rebranded in May 2020.

Firefly Health

Series A in 2019
Firefly Health, Inc. is a Massachusetts-based company that develops an artificial intelligence-driven platform to connect patients with healthcare professionals. Founded in 2016, it focuses on providing primary healthcare services that emphasize accessibility and quality. The platform allows users to navigate their health while offering care for common conditions such as back pain, stomach flu, and women's health issues. Firefly Health utilizes a virtual-first approach, enabling patients to access live video appointments with primary care physicians without membership fees. This model facilitates continuous and intelligent care, empowering patients to make informed health choices and allowing clinicians to deliver consistent and proactive support.

Quartet Health

Series D in 2019
Quartet Health is a New York-based company that develops a cloud-based platform designed to enhance communication and collaboration between medical providers and behavioral health providers for patient care. Founded in 2014, Quartet's platform works with health plans and systems to deliver actionable insights and reports on behavioral health conditions, aiming to improve patient outcomes. The platform also offers tools for patient self-management and ensures that mental health care is tailored to individual preferences and clinical needs, while being integrated with the broader healthcare experience and insurance coverage.

Vesta Healthcare

Series A in 2018
Vesta Healthcare is a technology and clinical services organization that focuses on enhancing the connection between caregivers and the broader care team. The company provides 24/7 telehealth support for caregivers and care recipients, particularly targeting high-need, frail senior populations. By partnering with home care agencies, health plans, and healthcare providers, Vesta Healthcare develops value-based population health programs that prioritize clinical quality, improved health outcomes, and personalized engagement. Originally established as Hometeam Technologies, Inc. in 2008, the company rebranded to Vesta Healthcare in January 2020 and is headquartered in New York, New York.

Notable

Series A in 2018
Notable is an AI-driven platform designed to enhance healthcare operations and improve physician-patient interactions. Deployed at over 10,000 care sites, it automates more than a million repetitive workflows daily, including processes related to registration, scheduling, authorizations, and chart reviews. The platform features a voice-powered application that organizes physician-patient conversations and dictations while securely recommending appropriate billing codes. By streamlining these tasks, Notable reduces manual workload for caregivers and fosters personalized care for patients, ultimately contributing to better financial health for healthcare providers.

Cricket Health

Series A in 2018
Cricket Health Inc. is a specialty kidney care provider focused on delivering integrated nephrology and dialysis services for individuals with Chronic Kidney Disease (CKD) and End Stage Renal Disease (ESRD). Founded in 2015 and based in San Francisco, California, the company employs a technology-enabled, evidence-based approach to manage kidney diseases. Cricket Health aims to enhance patient outcomes and value for healthcare partners by providing multidisciplinary care both in-person and virtually. Their services are designed to keep patients healthy, reduce hospitalizations, accelerate access to transplants, and promote home dialysis adoption. By identifying at-risk patients and acting early, Cricket Health supports personalized treatment options that include transplant support, home dialysis, conservative care, and in-center dialysis.

Quartet Health

Series C in 2018
Quartet Health is a New York-based company that develops a cloud-based platform designed to enhance communication and collaboration between medical providers and behavioral health providers for patient care. Founded in 2014, Quartet's platform works with health plans and systems to deliver actionable insights and reports on behavioral health conditions, aiming to improve patient outcomes. The platform also offers tools for patient self-management and ensures that mental health care is tailored to individual preferences and clinical needs, while being integrated with the broader healthcare experience and insurance coverage.

Wayspring

Series B in 2016
Wayspring is a healthcare organization dedicated to providing medical, behavioral health, and social support services to individuals with complex needs, particularly those living with substance use disorder. The organization employs a comprehensive, longitudinal model that emphasizes targeted outreach to members, strategic partnerships with providers, and community-based peer support. By focusing on individualized care, Wayspring ensures that patients have their fundamental needs addressed, including access to healthcare, economic stability, and social connections. This approach aims to enhance adherence to evidence-based medical practices, reduce healthcare waste, and ultimately improve health outcomes for its patients.

Quartet Health

Series B in 2016
Quartet Health is a New York-based company that develops a cloud-based platform designed to enhance communication and collaboration between medical providers and behavioral health providers for patient care. Founded in 2014, Quartet's platform works with health plans and systems to deliver actionable insights and reports on behavioral health conditions, aiming to improve patient outcomes. The platform also offers tools for patient self-management and ensures that mental health care is tailored to individual preferences and clinical needs, while being integrated with the broader healthcare experience and insurance coverage.

Quartet Health

Series A in 2015
Quartet Health is a New York-based company that develops a cloud-based platform designed to enhance communication and collaboration between medical providers and behavioral health providers for patient care. Founded in 2014, Quartet's platform works with health plans and systems to deliver actionable insights and reports on behavioral health conditions, aiming to improve patient outcomes. The platform also offers tools for patient self-management and ensures that mental health care is tailored to individual preferences and clinical needs, while being integrated with the broader healthcare experience and insurance coverage.
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