# Pantelis Kalogiros

> Pantelis Kalogiros is a Greek-born technologist-turned-investor serving as General Partner at Cox Exponential (CX2), the early-stage AI investment vehicle of Cox Enterprises. He co-founded Fyusion in 2014, building its web infrastructure to handle 2.7 billion daily requests and embedding its 3D vision SDK into 200 million devices before the company was acquired by Cox Automotive in 2020. A self-taught dropout who obtained a U.S. green card without a bachelor's degree, Pantelis brings rare depth as both a hands-on engineer and active venture investor focused on applied AI.

- **Role:** General Partner at Cox Exponential (CX2)
- **Organizations:** Cox Exponential (CX2), Fyusion (acquired by Cox Automotive), Open Perception
- **From:** Larisa, Greece
- **Nationality:** Greek
- **Education:** Informatics and Computer Science (did not complete - dropped out in final year), Technological Institute of Lamia, Greece
- **Known for:** Co-founded Fyusion, which grew to serve 100+ million users across 16,000+ websites, Built Fyusion's web infrastructure handling up to 2.7 billion requests per day, Developed SDK embedded in 200+ million devices

## Career timeline

- **~2010** — Dropped out of university in Greece during final year; began remote work with Silicon Valley computer vision researchers
- **2012** — Left Greece during the economic crisis; began working as lead JavaScript engineer at a digital marketing agency serving healthcare clients while building open-source software at night
- **2013** — Participated in Google Summer of Code; met Radu B. Rusu and future Fyusion co-founders
- **2014** — Co-founded Fyusion Inc. with Radu B. Rusu, Stefan J.J. Holzer, and Stephen D. Miller; developed patented .fyuse 3D image format
- **2015-2020** — Served as SVP Web at Fyusion; scaled infrastructure to 2.7 billion daily requests; built SDK deployed in 200 million devices; grew company from 4 to 65 employees across 22 nationalities
- **2019-2021** — Created AudioMass, open-source web-based audio editor; project accumulated 2,300+ GitHub stars
- **2020** — Fyusion acquired by Cox Automotive Inc. (one of its largest customers); retained operational independence
- **2021+** — Obtained EB-2 NIW green card in the U.S. despite no bachelor's degree, qualifying based on Fyusion's economic contributions
- **2022+** — Transitioned to General Partner / Exponential Investor at Cox Exponential (CX2), Cox Enterprises' early-stage AI investment vehicle

## Achievements

- Co-founded Fyusion, which grew to serve 100+ million users across 16,000+ websites
- Built Fyusion's web infrastructure handling up to 2.7 billion requests per day
- Developed SDK embedded in 200+ million devices
- Fyusion holds 120+ patents partly attributed to his technical contributions
- Successfully obtained U.S. EB-2 NIW green card without a bachelor's degree
- Created AudioMass open-source audio editor with 2,300+ GitHub stars and 277 forks
- Created css3d-game: a first-person adventure game rendered entirely in CSS/HTML (251 stars)
- Led a team of 20+ engineers spanning three continents
- Grew Fyusion from 4 to 65 employees across 22 nationalities
- Negotiated Fyusion's acquisition by Cox Automotive while maintaining operational independence

## Latest updates

- **2024-01** — Active as General Partner at Cox Exponential (CX2), investing $500K-$1M checks in early-stage applied AI companies
- **2023-06** — Listed among 80+ Greek-origin venture capital investors globally by The Greek Analyst Substack
- **2021-08** — Published article on Built In: 'Advice for Entry Level Software Developers From a Hiring Manager'

## Links

- Website: https://pantel.is
- LinkedIn: https://www.linkedin.com/in/pantelis-kalogiros/
- Twitter/X: https://x.com/pkalogiros
- GitHub: https://github.com/pkalogiros
- Instagram: https://www.instagram.com/kalogirosp8315/

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Profile page: https://yespress.io/pantelis-kalogiros
Published by YesPress — https://yespress.io
Last updated: 2026-05-17