Sunstone Partners
VC Fund
Palo Alto, United States
Sunstone Partners is a new investment fund focused on growth equity investments and majority buyouts in technology businesses in North America. The team previously worked together at Trident Capital, a multi-stage investment firm with seven funds and $1.9 billion under management since 1993.The firm is currently investing out of SunstonePartners I, LP, a fund with $310 million of committed capital. Sunstone Partners invests in both sizable minority positions and control transactions.Sunstone Partners was founded in 2015 and is headquartered in Palo Alto, CA. It was previously known as TC Growth Partners.
- Total investments:
- 25
- Last investment:
- Lead investor:
- 72%
- Fund size:
- $925M
- Last fund:
Last updated:
For AI agents: llms.txt
Industries Sunstone Partners invests in
Stages Sunstone Partners invests in
Countries Sunstone Partners invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
| See all 15 contacts → | |||
Round size
- Private Equity
- $75M–$410M
Investment Focus
Industry
- Information Technology 4 (16%)
- Software 3 (12%)
- Health Care 3 (12%)
- Events 2 (8%)
- Big Data 2 (8%)
Stage
- Private Equity 12 (48%)
- Pre-Seed 1 (4%)
- Series A 1 (4%)
- Series B 1 (4%)
- Series C 1 (4%)
Country
- United States 14 (56%)
- Canada 1 (4%)
- Denmark 1 (4%)
- Germany 1 (4%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Ankur Rathi
Principal
|
Principal | Total investments: 1 | Find email | |
Arneek Multani
Co-founder and Managing Director
|
Co-founder and Managing Director | Total investments: 9 | Find email | |
Gustavo Alberelli
Co-Founder & Managing Director
|
Co-Founder & Managing Director | Total investments: 11 | Find email | |
Julian Hinderling
Principal
|
Principal | Total investments: 1 | Find email | |
Mike Biggee
Сo-Founder and Managing Director
|
Сo-Founder and Managing Director | Total investments: 13 | Find email | |
| See all 15 team members → | ||||
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Peloton is a leading professional services firm that specializes in envisioning and delivering high-value and high-quality practical solutions within all areas of Enterprise Performance Management (EPM), Enterprise Information Management (EIM), and Analytics. We design and deliver enterprise solutions to address the complex issues facingbusinesses today. This requires an integrated collection of capabilities as well as a strong set of proven methodologies. With an experienced group of professionals that deliver high performance results, we provide implementation assistance to initiative-based programs. We leverage a proven, innovative approach to accelerated solution deployment as well as drive enhanced value through experiential learning. Our services and methodologies are designed to provide practical solutions that assure quality and adoption. | Private Equity / May 13, 2026 | ||
| ProgenyHealth is the market leader in evidence-based care management solutions for premature and medically complex newborns.They partner with health plans, government agencies and employer groups to improve the health outcomes of their tiniest members and bring bottom line savings to the total cost of care.Their team of neonatologists,pediatricians and NICU nurses provide continuity of care in collaboration with providers from hospital to home and throughout the first year of life.The ProgenyHealth Medical Advisory Board, all board-certified neonatologists, work with their Chief Medical Officer and medical team to continually update care management guidelines and incorporate best practices based on the latest research protocols. This assures they are always at the forefront of adopting and promoting the practice of evidence-based medicine. | Private Equity / May 20, 2025 | ||
| KMS Technology is a US-based product engineering and services company that specializes in providing offshore software development and testing services. The company works primarily with software companies to accelerate the delivery of innovative software solutions and make offshore outsourcing easier and more effective.The company'sinfrastructure, methodology, team design, employee profile, and client relationship models are designed to maximize the success of its clients in which they can help reduce time to market and increase quality.KMS Technology was founded in 2009 by a team of information technology veterans in the United States and Vietnam with a vision of building an agile, innovative, and efficient organization that increases its client’s shareholder value. | Private Equity / Nov 21, 2024 | ||
| Accuhealth is a Healthcare Technology company. Having created the first Healthcare Operations Center for remote patient monitoring, Accuhealth improves primary physician care within the clinical setting and the home. With access to real-time vital information, physicians improve outcomes, increase patient satisfaction, and reduces costs. | Private Equity / Apr 16, 2024 | ||
| EverService Holding is a provider of tech-enabled business solutions for companies of all sizes, helping them to grow and scale with digital marketing, website design & development, scheduling & booking services, 24/7 answering services, inbound & outbound sales, live virtual receptionists, client & patient intake, and ITservices. The company goes to market with vertically-integrated, industry-leading brands including Alert Communications, Blue Corona, Nexa Receptionists, Mid-State Communications, Client Chat Live, Mainline Telecommunications, and Nexa Healthcare. For more information, visit EverService at https://everservice.com/. | Private Equity / Sep 14, 2023 | ||
123 Baby Box
|
123 Baby Box is an online platform offering mothers brain developmental products for children by personalized subscription box for babies. | $1.2M / Pre-Seed / Mar 13, 2023 | |
| NetSPI combines managed services, application assessment, network assessment, and advisory services to deliver full-spectrum threat and vulnerability management solutions that transform IT security. Built on 15 years of deep-dive pentesting and security expertise, our CorrelatedVM™ platform, proven processes, and end-to-end managed servicesprograms help financial services, technology, healthcare, and retail leaders find, fix, and prevent threats across the enterprise—before they disrupt business. We put the right people, processes, and technology in the right place at the right time to increase visibility across your portfolio, eradicate your blind spots, and protect your most critical assets. | $410M / Private Equity / Oct 05, 2022 | ||
| OSF Digital, formerly OSF Global, with its brand OSF Commerce, is a top digital transformation specialist and leading global commerce solutions company.We possess expertise in omnichannel integrations, internationalization, and commerce optimization and help brands succeed against the challenges present in the world’s rapidly changing digitalenvironment. | $100M / Series C / Apr 13, 2022 | ||
| Vcheck Global is a business-to-business provider of due diligence, background checks, employment screening, document retrieval, and specialized research of both business entities and individuals. Vcheck Global protects you by providing more information about the people and companies you do business with. Our investigative team createshand-built research reports on companies and individuals. We sift through mountains of data from numerous private and public information sources and boil down the results into an easy-to-read document that will provide you with the details you need to make an informed decision.Vcheck Global’s due diligence services are most frequently utilized by commercial lenders, factoring companies, lawyers, municipalities, health care financiers, and bank card industry members. Vcheck Global’s screening services are also in demand by professionals who are vetting prospective hires, clients, strategic partners, and suppliers. | Private Equity / Nov 30, 2021 | ||
| Cardior Pharmaceuticals is a biotechnology company that engages in the development of non-coding RNA based therapeutics for the treatment and prevention of heart disease. It focuses on developing CDR-132X, an oligonucleotide-based inhibitor of a molecular master switch (microRNA) controlling pathological alterations of the heart following stress orinjury.Cardior Pharmaceuticals is a planned academic spin-off developing new therapeutics for the treatment and prevention of heart disease - the number one cause of death in the western world. | $75.3M / Series B / Aug 25, 2021 | ||
| See all 25 investments → | |||
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FAQ
What does Sunstone Partners invest in?
Sunstone Partners invests primarily in Information Technology, Software and Health Care startups, most often at Private Equity and Pre-Seed stage. Most of the 25 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Sunstone Partners's check size?
Sunstone Partners typically joins rounds of $75M–$410M at Private Equity. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Sunstone Partners participates in.
How do I contact Sunstone Partners?
Public channels for Sunstone Partners include LinkedIn and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at Sunstone Partners?
The team at Sunstone Partners includes Ankur Rathi (Principal), Arneek Multani (Co-founder and Managing Director) and Gustavo Alberelli (Co-Founder & Managing Director), among 15 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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