# Gustavo Alberelli

> Gustavo Alberelli is a private equity investor at Sunstone Partners backing Software. See 11 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Sunstone Partners](https://shizune.co/investors/profile/sunstone-partners-2)
- Location: San Francisco, United States
- Total investments: 11
- Last investment: Sep 2023
- Lead investor: 45%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/gustavo-alberelli-0382b7
- Facebook: https://www.facebook.com/galberelli

Gustavo Alberelli is a private equity investor at Sunstone Partners in San Francisco focused on Software and Marketing. Gustavo Alberelli is based out of San Mateo, California, and is the Co-Founder & Managing Director of Sunstone Partners. Gustavo previously worked at Trident Capital as a managing director. Gustavo Alberelli attended the Columbia Business School.

## Round sizes

| Stage | Round size |
| --- | --- |
| Series A | $5M–$6.9M |
| Series C | $14M–$30M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 2 | 18% |
| Marketing | 2 | 18% |
| E-Commerce | 2 | 18% |
| Enterprise Software | 2 | 18% |
| Information Technology | 2 | 18% |

23 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Private Equity | 4 | 36% |
| Series A | 2 | 18% |
| Series C | 2 | 18% |
| Angel | 1 | 9% |
| Funding Round | 1 | 9% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 7 | 64% |
| United Kingdom | 1 | 9% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| EverService | 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 |  |
| NetSPI | 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 |  |
| Vcheck Global | 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 |  |
| NetSPI | 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. |  | Private Equity | Apr 21, 2017 |  |
| StoryTerrace | Story Terrace helps people to capture their life story using professional writers, editors and software.Our offices in Los Angeles and London intelligently match customers with one of our 500 professional writers to create beautiful, full-colour books more affordably than ever before. Our focus is on American English, British English, and Dutch.We work with bilingual writers that can interview in many more languages. We are currently creating our first life story in a virtual reality environment. | $637K | Angel | Oct 06, 2016 |  |
| Extole | Extole has powered successful referral programs driving significant new customer acquisition for 300+ brands. Our enterprise referral platform distills years of experience and millions of conversions.Extole provides an end-to-end program from promotion to conversion. You can analyze and optimize your results by campaign, continuously improvingperformance. | $14M | Series C | Nov 08, 2014 |  |
| Flexport | Flexport is a full-service global freight forwarder and logistics platform using modern software to fix the user experience in global trade.The platform arranges goods to be transported and tracks the inventory in real-time in orders carried by ocean, air, and road freight, enabling logistics companies to optimize transportation routes andinventory management. It is a licensed customs brokerage and freight forwarder built around a modern web application. Its freight service includes an online dashboard for businesses to easily understand, purchase, manage, and track the services required for global trade. Its team of logistics experts lets focus on core business by ensuring goods arrive at fulfillment/distribution centers on time and at the lowest cost. Flexport's mission is to fix the user experience in global trade and bring the world free trade through technology.The company was founded in 2013 by Ryan Petersen and is based in San Francisco, California. | $6.9M | Series A | Apr 01, 2014 |  |
| Extole | Extole has powered successful referral programs driving significant new customer acquisition for 300+ brands. Our enterprise referral platform distills years of experience and millions of conversions.Extole provides an end-to-end program from promotion to conversion. You can analyze and optimize your results by campaign, continuously improvingperformance. | $5M |  | Nov 26, 2013 |  |
| Prolexic Technologies | Prolexic is the world’s largest, most trusted Distributed Denial of Service (DDoS) mitigation provider. Able to absorb the largest and most complex attacks ever launched, Prolexic restores mission critical Internet facing infrastructures for global enterprises and government agencies within minutes. Ten of the world’s largest banks and the leadingcompanies in e-Commerce, SaaS, payment processing, travel/hospitality, gaming and other at-risk industries rely on Prolexic to protect their businesses. Founded in 2003 as the world’s first "in the cloud" DDoS mitigation platform, Prolexic is headquartered in Hollywood, Florida and has scrubbing centers located in the Americas, Europe and Asia. | $30M | Series C | Jul 25, 2013 |  |
| Extole | Extole has powered successful referral programs driving significant new customer acquisition for 300+ brands. Our enterprise referral platform distills years of experience and millions of conversions.Extole provides an end-to-end program from promotion to conversion. You can analyze and optimize your results by campaign, continuously improvingperformance. | $5M | Series A | Sep 15, 2010 |  |

10 of 11 investments shown.

## Co-investors
- [Kohlberg Kravis Roberts & Co.](https://shizune.co/investors/profile/kkr) — VC Fund, 2 deals together
- [Redpoint](https://shizune.co/investors/profile/redpoint-ventures) — VC Fund, 2 deals together
- [Shasta Ventures](https://shizune.co/investors/profile/shasta-ventures) — VC Fund, 2 deals together
- [A-Grade Investments](https://shizune.co/investors/profile/a-grade-investments) — VC Fund, 1 deal together
- [Audax Strategic Capital](https://shizune.co/investors/profile/audax-strategic-capital) — VC Fund, 1 deal together
- [Bloomberg Beta](https://shizune.co/investors/profile/bloomberg-beta) — VC Fund, 1 deal together

## About 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.

5 contacts available at Sunstone Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Ankur Rathi | Principal | https://shizune.co/investors/profile/ankur-rathi |
| Arneek Multani | Co-founder and Managing Director | https://shizune.co/investors/profile/arneek-multani |
| Gustavo Alberelli | Co-Founder & Managing Director | https://shizune.co/investors/profile/gustavo-alberelli |
| Julian Hinderling | Principal | https://shizune.co/investors/profile/julian-hinderling |
| Mike Biggee | Сo-Founder and Managing Director | https://shizune.co/investors/profile/mike-biggee |

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## FAQ

### What does Gustavo Alberelli invest in?

Gustavo Alberelli invests primarily in Software, Marketing and E-Commerce startups, most often at Private Equity and Series A stage. Most of the 11 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 Gustavo Alberelli's check size?

Gustavo Alberelli typically joins rounds of $5M–$6.9M at Series A and $14M–$30M at Series C. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Gustavo Alberelli participates in.

### When did Gustavo Alberelli last invest?

The most recent investment recorded for Gustavo Alberelli closed in Sep 2023. Shizune tracks 11 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### 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 Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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