Tel Aviv-based Cylus, which provides cybersecurity tools for rail networks, raises a $30M Series B led by Ibex Investors, bringing its total funding to $57M
Kate Park / TechCrunch :
Context & Ripple Effects
Two and a half years after its $12M Series A co-led by Magma Venture Partners and Vertex Ventures, Cylus has closed a $30M Series B with Ibex Investors taking the lead, lifting total funding to $57M. The company sells cybersecurity tooling built specifically for rail and metro networks, where an attack can cause safety incidents and service disruptions rather than just data loss.
The round also slots into a busy stretch for Tel Aviv cybersecurity financing: Cyolo raised a $60M Series B for zero trust access, Cymulate followed with a $70M Series D, and data-security startup Cyera went from stealth to multi-billion-dollar valuations — evidence that Israel's security cluster keeps producing specialists that investors fund at every stage.
First-order effects
- Ibex Investors becomes Cylus's lead backer at the Series B stage, giving the startup fresh capital to scale its rail-and-metro product beyond what the 2019 Series A could support.
- Rail and metro operators evaluating cyber vendors now have a better-funded specialist option, as opposed to general-purpose IT security tools repurposed for signaling and operations networks.
Second-order effects
- Other Israeli security firms competing for enterprise budgets — from endpoint player Cynet to zero trust vendor Cyolo — face a rival whose vertical focus lets it sell into transport authorities that generic tools struggle to win.
- Generalist infrastructure-security buyers gain a pricing benchmark: a dedicated rail cyber stack with $57M behind it forces broader OT security vendors to justify why their horizontal products fit trains.
Third-order effects
- If sector-specific rounds like this keep landing, critical-infrastructure security consolidates into named verticals — rail, energy, water — each with dedicated vendors, rather than one undifferentiated 'OT security' market.
- Transport authorities become a recurring customer class for venture-backed security firms, pulling regulators and transit agencies deeper into procurement decisions historically left to IT departments.
The trend: Israeli cybersecurity funding is splitting into vertical specialists — rail, zero trust, data security — with investors like Ibex underwriting domain expertise over horizontal platforms.