Erik Kostelnik

Founder at BrandScreen.ai, Navi.app, GameGuide.io, and Stealth Kids Sports Club Tracking App

📍 United States🔄 Updated September 2026💼 6 investments📅 7 years investing🗓 Last invested May 2025
VC🌍 United States
6
Total investments
3
Early stage
0
Mid stage
2
Late stage
7y
Years active

Portfolio

6 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
May 2025
Oakland is stealing baseball back. Our team was ripped away from us but now we’re reclaiming baseball for the people of Oakland. The Oakland Ballers will stay in Oakland forever and build a team alongside fans to make the Town a championship city once again. We believe that the true value of a sports team is its power to bring people together. We are dedicated to delivering a joyful, community-focused experience for Oakland and the entire East Bay. We invite you to join us on this journey.
Investor
Jul 2023
Stealth
Investor
Oct 2022
LexCheck believes growth accelerates when companies agree faster. Our contract acceleration and intelligence platform streamlines negotiations by delivering redlines and issues lists in minutes while ensuring consistency across each contract reviewed—saving time and reducing risk. With LexCheck, business flows faster.
Investor
Mar 2022
GTMfund is an early-stage VC fund focused on B2B SaaS. Our 350+ limited partners are the best go-to-market (GTM) executives in tech. Operators who have been there, done that at the world’s fastest growing SaaS companies - Salesforce, Okta, Tableau, Mulesoft, Procore, Snowflake, Segment, ServiceNow, Rippling, and many more. GTMfund is more than capital. We have a flywheel of resources to support our portfolio companies grow revenue, hire, and build distribution: - GTMfund: The VC fund itself. - Community: Access to hundreds of the best GTM operators in tech. - Talent: Resources to help you recruit and hire the best operators to your team. - GTMnow: A media brand, including an industry leading newsletter, podcast and more. We help you get from zero to IPO.
Seed Investor
Nov 2021
Duel is the first social platform to connect the 3 billion global gamers by providing them with the tools to create uniquely personalized experiences.
Investor
Jan 2019
We believe cyber risk management has evolved from an IT problem into a business problem. Because of this shift, security executives must adapt how they communicate risk to the board. But since risk is hard to frame in the context of a business initiative, security executives need help putting risk into business terms that the board can use to make informed, strategic decisions to drive growth. Additionally, security teams are often seen as the team that says “no”, shutting down projects and initiatives due to risk, which limits growth and results in missed opportunities. At RiskOptics, we aim to make risk management more strategic, pulling it up from tactical “check-the-box” work to something more valuable to both the company and the security team. There’s an opportunity for security executives to go beyond just protecting their company and secure their role as a more valuable, strategic member of the team. We can help by giving them the business context they need to report risk to their board in a way that is easy to understand and act upon.
Experience · 11 entries
All (11)
Investments (6)
Founder (5)
2026
Founder
Jun 2026
Find your perfect company name and screen trademarks, domains, business entities, social handles, and search competition across the United States — in one report. Check your startup name before you spend a dollar.
2025
Investor
May 2025
Oakland is stealing baseball back. Our team was ripped away from us but now we’re reclaiming baseball for the people of Oakland. The Oakland Ballers will stay in Oakland forever and build a team alongside fans to make the Town a championship city once again. We believe that the true value of a sports team is its power to bring people together. We are dedicated to delivering a joyful, community-focused experience for Oakland and the entire East Bay. We invite you to join us on this journey.
Founder
May 2025
Navi is a mobile and web application designed to help pedestrians safely navigate urban areas by surfacing public crime data and crowdsourcing real-time hazards and public safety concerns.
2023
Investor
Jul 2023
Stealth
Show all 11 entries ↓
Investment activity
2019–2025 · 6 investments
2019120211202222023120251
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