Insights

Strong Growth Focus Sunstone Partners demonstrates a clear focus on growth-stage technology-enabled services and software companies, regularly making strategic investments to accelerate expansion. This indicates a continuous need for scalable solutions, innovative tools, and strategic advisory services aligned with high-growth trajectories.

Active Investment Portfolio The firm has a diverse and active investment portfolio, including recent funding rounds in healthcare, digital engineering, AI, and industrial real estate. Sales opportunities exist across these sectors for solution providers catering to private equity-backed companies, such as SaaS, digital infrastructure, or M&A consulting.

Founder-Friendly Reputation Recognized consistently as a founder-friendly investor, Sunstone Partners values collaborations that support entrepreneurship and organic growth. Engaging with portfolio companies during their scaling phases could open doors for tailored growth strategies, financial products, and operational enhancements.

Investment in Digital Innovation Recent investments in healthcare technology and AI-driven services highlight a commitment to digital transformation. Companies offering health tech, remote monitoring, or AI-enabled solutions could find valuable opportunities to partner with Sunstone’s portfolio or provide complementary services.

Financial Scale and Reach With over 1.7 billion in committed capital and revenues estimated between 50 and 100 million dollars, Sunstone Partners presents a significant potential for engagements in mid-market private equity environments, including scalable enterprise solutions, compliance, and operational efficiencies tailored for high-growth firms.

Sunstone Partners Tech Stack

Sunstone Partners uses 8 technology products and services including Squarespace, WordPress, RSS, and more. Explore Sunstone Partners's tech stack below.

  • Squarespace
    Content Management System
  • WordPress
    Content Management System
  • RSS
    Content Management System
  • Vue.js
    Javascript Frameworks
  • jQuery
    Javascript Libraries
  • Priority Hints
    Performance
  • Google Analytics
    Web Analytics
  • Apache
    Web Servers

Media & News

Sunstone Partners's Email Address Formats

Sunstone Partners uses at least 1 format(s):
Sunstone Partners Email FormatsExamplePercentage
FLast@sunstonepartners.comJDoe@sunstonepartners.com
92%
First.Last@sunstonepartners.comJohn.Doe@sunstonepartners.com
5%
First@sunstonepartners.comJohn@sunstonepartners.com
1%
FMiddleLast@sunstonepartners.comJMichaelDoe@sunstonepartners.com
2%

Frequently Asked Questions

Where is Sunstone Partners's headquarters located?

Minus sign iconPlus sign icon
Sunstone Partners's main headquarters is located at 400 South el Camino Real San Mateo, California United States. The company has employees across 2 continents, including North AmericaEurope.

What is Sunstone Partners's official website and social media links?

Minus sign iconPlus sign icon
Sunstone Partners's official website is sunstonepartners.com and has social profiles on LinkedIn.

What is Sunstone Partners's SIC code NAICS code?

Minus sign iconPlus sign icon
Sunstone Partners's SIC code is 6211 - Security Brokers, Dealers, and Flotation Companies NAICS code is 52391 - Miscellaneous Intermediation.

How many employees does Sunstone Partners have currently?

Minus sign iconPlus sign icon
As of February 2026, Sunstone Partners has approximately 50 employees across 2 continents, including North AmericaEurope. Key team members include Head Of Portfolio Ops: S. L.Co-Founder And Managing Director: M. B.Partner: J. H.. Explore Sunstone Partners's employee directory with LeadIQ.

What industry does Sunstone Partners belong to?

Minus sign iconPlus sign icon
Sunstone Partners operates in the Venture Capital and Private Equity Principals industry.

What technology does Sunstone Partners use?

Minus sign iconPlus sign icon
Sunstone Partners's tech stack includes SquarespaceWordPressRSSVue.jsjQueryPriority HintsGoogle AnalyticsApache.

What is Sunstone Partners's email format?

Minus sign iconPlus sign icon
Sunstone Partners's email format typically follows the pattern of FLast@sunstonepartners.com. Find more Sunstone Partners email formats with LeadIQ.

When was Sunstone Partners founded?

Minus sign iconPlus sign icon
Sunstone Partners was founded in 2015.

Sunstone Partners

Venture Capital and Private Equity PrincipalsCalifornia, United States11-50 Employees

Sunstone Partners is a growth-oriented private equity firm that makes majority and minority investments in technology-enabled services and software businesses. Founded in 2015, the firm has over $1.7 billion committed to its three funds. Sunstone Partners has been recognized on Inc. Magazine’s “Founder-Friendly Investors” list* five years in a row, in 2020, 2021, 2022, 2023 and 2024.

*Inc. Founder Friendly Investors  – Awarded by Inc. Magazine in October each year. This determination is made following application from private equity / venture capital firms that have exited U.S.-based, founder-led, private portfolio companies. The submitted application includes references from portfolio companies. This award reflects Inc. Magazine’s determination each such year that Sunstone Partners is a founder friendly firm that entrepreneurs can collaborate and trust as they receive the financial support they need to help drive growth. A fee is paid to be considered for the award. The full extent of the range and scope of firms and data included in the evaluation is unknown. To compile the list, Inc. went straight to the source: entrepreneurs who have sold to private equity and venture capital firms. Founders fill out a questionnaire about their experiences partnering with private equity and venture capital firms and shared share data on how their portfolio companies have grown during these partnerships.

Section iconCompany Overview

Headquarters
400 South el Camino Real San Mateo, California United States
SIC Code
6211 - Security Brokers, Dealers, and Flotation Companies
NAICS Code
52391 - Miscellaneous Intermediation
Founded
2015
Employees
11-50

Section iconFunding & Financials

  • $50M$100M

    Sunstone Partners's revenue is estimated to be in the range of $50M$100M

Section iconFunding & Financials

  • $50M$100M

    Sunstone Partners's revenue is estimated to be in the range of $50M$100M

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.