Eric Stromberg

Partner at Terrain

📍 New York, New York, United States🔄 Updated September 2026💼 14 investments📅 10 years investing🗓 Last invested Jan 2024𝕏 @upgrade_to_unlock
Operator-angel🌍 United States
14
Total investments
11
Early stage
1
Mid stage
0
Late stage
10y
Years active

Portfolio

14 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Seed Investor
2024
At Parallel Web Systems, we’re bringing a new web to life: it’s built with, by, and for AIs. Our work spans innovations across crawling, indexing, ranking, retrieval, and reasoning systems.
Seed Investor
2023
Base is building the future of American power. The grid is the largest, most complex machine in the world. But it’s aging, struggling to keep up with today’s demand, and is unprepared for our electrified future. Base is modernizing the grid as the first engineering-led, technology-driven power company. We’re deploying a nationwide network of distributed batteries that strengthens critical infrastructure and saves Americans money. Our team of engineers, operators, creatives, technicians, and electricians design and deploy systems at speed. If you want to tackle the problem that will define this century and shape the future of American energy, now is the time. Join us.
Seed Investor
2022
APIs that enable developers to move into, out of, and between any form of a dollar.
Seed Investor
2021
Miter is how construction and field service contractors manage their workforce, field operations, and spend in one place. Our platform connects people, projects, and payments, enabling contractors to build with confidence.
Seed Investor
2021
Playground is child care management software that manages billing, attendance, registration, communication, paperwork, payroll and more for childcare programs.
Board Observer
Jan 2019
The everything app for hourly teams with scheduling, time clocks, payroll, messaging, and HR—built for small businesses. Unstoppable teams start here. Best Time Clock 2023 - The Motley Fool Best Scheduling 2023 - Investopedia Americas Best Startup Employers 2024 - Forbes Brands That Matter Winner 2024 - Fast Company Best HR & Employee App 2023, 2024, & 2025 - The Webby Awards Best employee communication tool ever! - Theresa Fouquette, Owner, Bliss Small Batch Creamery
Founder & Board Member
2019
Check is a payroll-as-a-service API that lets you embed payroll directly in your vertical SaaS, HR, or time-tracking platform.
Investor
2019
The Car Wash CRM. Grow and retain your car wash membership revenue with Rinsed
Board Member
Oct 2018
The Athletic delivers powerful stories and smart analysis that bring sports fans closer to the heart of the game. From breaking news and live commentary, to deeply-reported long reads and exclusive interviews, subscribers rely on The Athletic for every sports story that matters. Acquired by The New York Times in 2022. Learn more about career opportunities at The Athletic: https://theathletic.com/careers/
early stageOnline Media
Board Member
Jun 2018
Dipsea is a female-founded company empowering women to tap into their sexuality more easily and on their terms, all through the power of storytelling. Explore sexy stories, wellness sessions, and sleep scenes on the Dipsea app via the App Store, Google Play Store, and via dipseastories.com.
Investor
2018
Flock Safety is the leading public safety platform designed to help communities prevent and reduce crime, not just respond to it. We partner with cities, law enforcement agencies, schools, businesses, and neighborhoods to deliver real-time, objective intelligence that helps stop crime quickly, responsibly, and transparently. Our technology captures objective evidence, such as vehicle and situational data, and applies privacy-first machine learning to surface actionable insights, so investigators can focus on facts, not guesswork. The result is faster resolutions, safer communities, and fewer intrusive policing practices. Unlike legacy systems built around force, hardware sprawl, or after-the-fact evidence review, Flock is purpose-built for crime prevention and accountability at scale. Our cloud-native platform is easy to deploy, simple to use, and designed with civil liberties at the core, including built-in data minimization, auditing, and user transparency. Why communities choose Flock Safety: Prevention-first public safety: stop crime earlier with shared, objective intelligence. Privacy by design: clear retention controls, audit logs, and policy-driven access. Real-time insights: machine learning that helps identify leads in minutes, not days. Unified platform: cameras, sensors, and intelligence working together seamlessly. Community trust: technology that supports public safety without overreach. Today, thousands of cities and organizations rely on Flock Safety to reduce crime, improve clearance rates, and build safer environments - without compromising the values of the communities they serve. Flock Safety is redefining public safety for the modern world: proactive, accountable, and community-centered.
early stagePublic Safety
Investor
2017
Thirty Madison exists to deliver on healthcares biggest opportunities: access and affordability; patient outcomes; and patient experience. With empathy at the heart of its innovation, its proprietary care model empowers hundreds of thousands of people with ongoing conditions with accessible, effective treatments across a lifetime of care. Learn more at ThirtyMadison.com.
Seed Investor
Jul 2016
Built Robotics’ mission is to build the robots that build the world. By automating repetitive tasks in the $300 billion solar industry, Built is bridging the workforce gap to accelerate our transition to clean energy.
Seed Investor
Apr 2016
Lattice is a people management platform that enables leaders to build engaged, high-performing teams. Designed for growing businesses, we simplify the HR tech stack with a single system that includes HRIS (coming soon), performance reviews, employee engagement, goal-tracking, compensation, and career development. We’re on a mission to make work meaningful. If you are passionate about the intersection where great cultures meet high performance, please join us. We’re hiring for a number of positions! Learn about joining our team on our Careers tab or by emailing us at hello@lattice.com.
Experience · 20 entries
All (20)
Investments (13)
Founder (6)
Board (3)
2024
Seed Investor
2024
At Parallel Web Systems, we’re bringing a new web to life: it’s built with, by, and for AIs. Our work spans innovations across crawling, indexing, ranking, retrieval, and reasoning systems.
Partner
2024
Terrain is a seed stage investment firm focused on software and technology. Terrain is online worldwide at terrain.com
2023
Seed Investor
2023
Base is building the future of American power. The grid is the largest, most complex machine in the world. But it’s aging, struggling to keep up with today’s demand, and is unprepared for our electrified future. Base is modernizing the grid as the first engineering-led, technology-driven power company. We’re deploying a nationwide network of distributed batteries that strengthens critical infrastructure and saves Americans money. Our team of engineers, operators, creatives, technicians, and electricians design and deploy systems at speed. If you want to tackle the problem that will define this century and shape the future of American energy, now is the time. Join us.
2022
Seed Investor
2022
APIs that enable developers to move into, out of, and between any form of a dollar.
2021
Seed Investor
2021
Miter is how construction and field service contractors manage their workforce, field operations, and spend in one place. Our platform connects people, projects, and payments, enabling contractors to build with confidence.
Show all 20 entries ↓
Investment activity
2016–2024 · 14 investments
2016220171201832019320212202212023120241
Recent (last 2 years)Earlier