Peter Briger
Principal & Co-Chairman of the Board of Directors @ Fortress Investment Group
New York, United States
Peter Briger is a seed investor at Fortress Investment Group in New York focused on Software and Analytics. Briger is a principal and Co-Chairman of the board of directors of Fortress. He has served as a member of the board of directors of Fortress since November 2006 and was elected Co-Chairman in August 2009. Briger has been a member of the Management Committee of Fortress since March 2002. Briger is responsible for the Credit and Real Estatebusiness at Fortress. Prior to joining Fortress in March 2002, Briger spent fifteen years at Goldman, Sachs & Co., where he became a partner in 1996. Briger serves on the board of Tipping Point, a non-profit organization serving low income families in San Francisco. Briger also serves on the board of Caliber Schools, a network of charter schools committed to preparing students for success in competitive four-year colleges and beyond.Briger received a B.A. from Princeton University and an M.B.A. from the Wharton School of Business at the University of Pennsylvania.
- Total investments:
- 6
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Peter Briger invests in
Stages Peter Briger invests in
Countries Peter Briger invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $340k–$10M
Investment Focus
Industry
- Software 3 (50%)
- Analytics 2 (33%)
- Machine Learning 2 (33%)
- Artificial Intelligence 2 (33%)
- Toys 1 (17%)
Stage
- Seed 5 (83%)
- Series A 1 (17%)
Country
- United States 5 (83%)
- United Kingdom 1 (17%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Multiplier
|
Multiplier helps institutional investors research stocks and manage their portfolios. We're live with six hedge funds, and our users spend 4+ hours a day in the platform.Investors who try "nearly every tool on the market," to quote a client of ours, "wind up with an unwieldy collection of fragmented point solutions."Those who focus on building a great setup with general agents are instead "signing up for a full-time job." So we deploy a platform called Multiplier that unifies structured data, unstructured data, AI work, human work, and tacit firm knowledge in one secure, governed, customized application.Our first vertical: independent equity funds with $250M-$5B of assets. They know AI is essential for staying relevant, but they don't have the time or talent to figure out what to do about it. But once we deploy Multiplier––"We used to spend 80% of our time gathering information and 20% of our time acting on it," said one customer. "Multiplier has flipped those percentages." | $6M / Seed / Aug 10, 2026 | |
Biproxi
|
Biproxi equips commercial real estate sellers, brokers & buyers with a single, cloud-based platform to power transactions from list to close. | $3M / Seed / Sep 01, 2018 | |
SafeGraph
|
SafeGraph builds and maintains data sets to help accelerate machine learning and AI. Its high-precision places data covers business listings, building footprints, and aggregated foot traffic data for millions of points of interest (POI) and thousands of brands in the US and Canada. With detailed brand affiliation, spatial hierarchy, and other keybusiness details, SafeGraph data informs market analytics, investment research, site selection, and more.It was founded in 2016 and is based in San Francisco, California. | $16M / Series A / Apr 19, 2017 | |
Windfall
|
Windfall provides people intelligence and AI workflow solutions to help organizations identify, understand, and engage with their target audiences through data-driven insights and automation. The platform integrates machine learning and propensity modeling to enhance go-to-market strategies across various sectors, including marketing, sales,analytics, and nonprofit development.Windfall's services include data enrichment, wealth screening, and predictive analytics, allowing clients to gain a comprehensive understanding of their constituents. These tools facilitate the creation of targeted campaigns and personalized outreach efforts. The platform supports integration with systems such as Salesforce, Microsoft Dynamics, and Blackbaud, enabling seamless incorporation into existing workflows. | Seed / Dec 18, 2016 | |
Stella
|
Stella is an industry consortium of large frontline and hourly employers who share non-hired and laid-off applicants with one another through the Stella marketplace. Using Stella's iOS, Android mobile apps and our map-based interface, job seekers can easily explore nearby network job openings. Applying is a snap thanks to our common jobapplication and tight employer ATS integrations. Applicants do not have to fill out the same information over and over again. This streamlined process improves the candidate experience by saving time and effort.Stella has raised $25M+ from world class investors. Dozens of America’s largest employers are already using Stella to hire talent and to help their laid-off employees find new work more quickly. More companies and jobs are being added every day. Our growing team is based in New York City and Sydney, Australia.Stella. Finding work has never been easier. Discover more at https://stella.jobs | $10.2M / Seed / Sep 15, 2016 | |
Wauwaa
|
Wauwaa -taking attributes from successful business verticals and uniting them in one common platform.Wauwaa’s 'browse and discover' experience launched in September 2013 combining written and video content, with online shopping and community for parents and growing families.They developed the concept and business manifesto oversix months before collaborating with the now Non Executive Director, and Director of e-commerce for Hackett, Kristine Kirby.As the dream of Wauwaa gradually became reality this growing business demanded more hands. The team at Wauwaa has since grown to nearly 20 full time staff in Helsinki and London and has raised over 1 Million Euros in funding from American and European investors. The service first launched in the UK market in September 2013 and is well on the path to becoming a global leader in e-commerce and content for new parents and growing families. | $340K / Seed / Jul 15, 2013 |
Co-Investors
Fortress Investment Group is an investment management firm that engages in private equity, credit, liquid markets, and traditional asset strategies. The firm manages investments on behalf of institutional investors and private clients across various sectors and geographies.
Fortress Investment Group Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Constantine Dakolias
Managing Partner
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Drew McKnight
Managing Partner
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Andrew Berman
Managing Director
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Andrew Joo
Managing Director
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Bill Tefft
Director in Private Credit Origination
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FAQ
What does Peter Briger invest in?
Peter Briger invests primarily in Software, Analytics and Machine Learning startups, most often at Seed and Series A stage. Most of the 6 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 Peter Briger's check size?
Peter Briger typically joins rounds of $340k–$10M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Peter Briger participates in.
How do I contact Peter Briger?
Public channels for Peter Briger include LinkedIn, X (Twitter) 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.
When did Peter Briger last invest?
The most recent investment recorded for Peter Briger closed in Aug 2026. Shizune tracks 6 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 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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