Sunstone Partners

Sunstone Partners is a San Mateo, California-based private equity firm specializing in growth equity and buyouts in technology-enabled services and software companies across North America. Founded in 2015 (formerly TC Growth Partners), the firm targets both substantial minority investments and control transactions and has supported growth in sectors including software, information technology services, cybersecurity, cloud, health tech, and marketing services. The firm operates as a recognized investment adviser and focuses on technology-enabled businesses with strong growth potential, typically engaging in deals across North America.

Gus Alberelli

Co-Founder and Managing Partner

Charlie Culp

Vice President

Luis Espinoza

Vice President

Will Goffe

Investment Associate

Julian Hinderling

Partner

Alex Huang

Associate

Prachi Kanabar

Principal and Head Of Portfolio Operations

Esther Kim

Vice President

Ayato Kobayashi

Investment Associate

Michael Koenig

Vice President

Arvin Kumaran

Associate

Kyle Landis

Associate

Matthew Londa

Vice President

Ankur Rathi

Partner

Rahul Varkhedi

Senior Associate

Jack Wang

Principal

Patrick Wheeler

Member and Operating Partner

Past deals in Infants

123 Baby Box

Pre Seed Round in 2023
123 Baby Box is a company that operates an online platform offering a personalized monthly subscription box of brain development oriented baby products for infants and toddlers. Each box typically includes five to six full-sized items such as books, clothing, toys, and diapers. The company also partners with neighborhood charities and orphanages to provide babies with needed care, aiming to reduce research time and costs for mothers and to make early-stage development accessible to all children regardless of background.

Progeny Health

Private Equity Round in 2018
ProgenyHealth, Inc. specializes in neonatal care coordination services aimed at addressing the health care needs of infants in intensive care nurseries. Established in 2004 and headquartered in Conshohocken, Pennsylvania, the company collaborates with health plans, government agencies, and employer groups to enhance health outcomes for premature and medically complex newborns. Their experienced team, consisting of neonatologists, pediatricians, and NICU nurses, provides comprehensive care management from the hospital through to the first year of life, ensuring continuity and support for families. ProgenyHealth emphasizes evidence-based medicine, with its Medical Advisory Board of board-certified neonatologists continually updating care guidelines based on the latest research. This approach not only aims to improve infant health but also seeks to reduce healthcare costs and readmission rates for families.

Progeny Health

ProgenyHealth, Inc. specializes in neonatal care coordination services aimed at addressing the health care needs of infants in intensive care nurseries. Established in 2004 and headquartered in Conshohocken, Pennsylvania, the company collaborates with health plans, government agencies, and employer groups to enhance health outcomes for premature and medically complex newborns. Their experienced team, consisting of neonatologists, pediatricians, and NICU nurses, provides comprehensive care management from the hospital through to the first year of life, ensuring continuity and support for families. ProgenyHealth emphasizes evidence-based medicine, with its Medical Advisory Board of board-certified neonatologists continually updating care guidelines based on the latest research. This approach not only aims to improve infant health but also seeks to reduce healthcare costs and readmission rates for families.
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