Sean O'Brien
Managing Partner @ Overline
Atlanta, United States
Sean O'Brien is a seed investor at Overline in Atlanta focused on Artificial Intelligence and Sports. Sean O'Brien serves as a Managing Partner at Overline VC.
- Total investments:
- 14
- Last investment:
- Lead investor:
- 57%
Last updated:
For AI agents: llms.txt
Industries Sean O'Brien invests in
Stages Sean O'Brien invests in
Countries Sean O'Brien invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Artificial Intelligence 4 (29%)
- Sports 2 (14%)
- Software 2 (14%)
- Information Technology 2 (14%)
- Pet 1 (7%)
Stage
- Seed 6 (43%)
- Pre-Seed 6 (43%)
- Series A 2 (14%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| LLABS deploys enterprise agents into bounded roles. They work in your systems and improve from reviewed decisions and outcomes through Causal Trajectory Learning. | $4.5M / Seed / Aug 05, 2026 | ||
| Pickleheads is a digital home for pickleball players to find the playing court online. It is a software for pickleball players to create groups, schedule playing time, game guidance, and pickleball playing kits. | $2.5M / Seed / Feb 05, 2025 | ||
| Franzy is the "Zillow for franchising"—a smarter, more transparent way to find, compare, and finance franchise opportunities. We match aspiring entrepreneurs with the right franchise brands based on their goals, experience, and budget, making the path to business ownership simpler, faster, and more accessible. | $1.2M / Pre-Seed / Jan 29, 2025 | ||
| The Zero Proof offers a broad selection of adult premium non-alcoholic beverages through e-commerce and traditional distribution. | Series A / Jan 30, 2024 | ||
| Grubbly Farms develops healthy and sustainable pet food using farm-grown black soldier fly grubs. It was formed to combat the continuously rising cost of livestock feed by developing a sustainable source of protein. The increasing price of feed, which is the single largest expense of raising livestock, is causing undue hardships for farms of allsizes and running many farmers out of business. | $8.5M / Series A / Oct 25, 2023 | ||
| Homegrown helps the best neighborhood businesses open up more locations by providing a single source of non-dilutive expansion capital without personal guarantees. We allow owners (who have at least two locations of a brand) to trade a small percentage of future revenue in exchange for large amounts of growth capital now. Backed by Overline VCand Neighborhood Studios | $500K / Pre-Seed / Jun 01, 2023 | ||
| Seed is building the future of the music industry by helping creators and entrepreneurs start, grow, and protect their businesses through gamified courses, AI-powered end-to-end contract automation and management platform (soon), and community.It all started as a virtual law office designed to help music entrepreneurs protect their intellectualproperty.Inspired by its thriving social media community, Seed widened its reach by producing free educational content, e-books, music contract templates, and paid online courses. Seed carefully curates the information provided and produces all the content in-house to ensure a high-quality online learning experience. Today, Seed is home to over 120,000 people worldwide who love learning about the music business. | $250K / Pre-Seed / Jan 20, 2023 | ||
| The Zero Proof offers a broad selection of adult premium non-alcoholic beverages through e-commerce and traditional distribution. | $2M / Seed / Dec 20, 2022 | ||
| Pickleheads is a digital home for pickleball players to find the playing court online. It is a software for pickleball players to create groups, schedule playing time, game guidance, and pickleball playing kits. | $750K / Pre-Seed / Oct 01, 2022 | ||
| Resultid is the AI for Operational Excellence. Our platform transforms unstructured data—like feedback, transcripts, and logs—into real-time, actionable insights tied directly to key performance metrics such as revenue, retention, and efficiency. Unlike dashboards or survey tools, Resultid automates the discovery of friction points, surfaces rootcauses, and generates KPI-linked action plans across every level of the enterprise. By bridging infrastructure platforms and traditional consulting workflows, Resultid enables large organizations to move from reactive reporting to intelligent, system-driven decision-making. | $3.3M / Seed / Jan 28, 2022 | ||
| See all 14 investments → | |||
Co-Investors
About Overline
Overline VC is a seed-stage venture capital firm that invests in and supports exceptional founders. The firm's goal is to foster and grow a vibrant, inclusive community that becomes a launchpad for the next generation of local entrepreneurs. It leads seed rounds, sets terms, and aims to speak for the entirety of a financing round.Founded in2020, Overline VC is headquartered in Atlanta, Georgia.
Overline Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Michael Cohn
Managing Partner
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Sean O'Brien
Managing Partner
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FAQ
What does Sean O'Brien invest in?
Sean O'Brien invests primarily in Artificial Intelligence, Sports and Software startups, most often at Seed and Pre-Seed stage. Most of the 14 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Sean O'Brien?
Public channels for Sean O'Brien include LinkedIn. 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 Sean O'Brien last invest?
The most recent investment recorded for Sean O'Brien closed in Aug 2026. Shizune tracks 14 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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