About Anton Simunovic
Anton Simunovic is a partner at Venture Guides, a Boston venture capital firm. The firm advises early-stage security, AI, cloud infrastructure, and data companies. Venture Guides led the seed round of SpartanX, announced on April 21, 2026.
SpartanX builds an autonomous, AI-powered red teaming platform for enterprises and managed security service providers. Simunovic is on the board of directors of SpartanX.
Experience
This experience comes from official bios and from SEC filings. For roles taken from filings, the years are when the filings name Anton Simunovic in the role, so the role may have started earlier or lasted longer.
SpartanX Technologies, Inc. Current
Partner at Venture Guides and director
Board of Directors
2026 – Present · Boston, MA
Software that acts as a continuous attacker, finds weaknesses across a company's systems, proves each with an exploit, and helps fix them.
VG
Venture Guides Current
Partner
OpsMate AI, Inc.
Director
2026 · Westwood, MA
AI assistants and agents that help manufacturers use plant data and expertise.
Key Colleagues at Startups
The people Anton Simunovic works with at each company, as listed on that company's latest Form D.
SpartanX Technologies, Inc. · Form D, Oct 22, 2026
Erik Hardy
Chief Executive Officer and director
Diego Spahn
Co-Founder, Chief Technology & Product Officer
OpsMate AI, Inc. · Form D, Oct 15, 2026
HH
Howard Heppelmann
Executive officer, director and promoter
JZ
Jianjie Zhang
CFO/Treasurer and director
TX
Tao Xu
Executive officer and promoter
TL
Ting Liu
Promoter