Ostra Security Closes $9.5M Series A Extension to Supercharge Cyber Defense for SMBs

MINNEAPOLIS, MN – August 7, 2025 – Ostra Security, a managed cybersecurity leader, today announced the successful close of a Series A extension, raising the total funding of this round to $9.5 million. 
 

What This Means for Cybersecurity

This fresh infusion of capital builds on Ostra’s mission to deliver Fortune-100 caliber cybersecurity solutions tailored for small and mid-sized businesses (SMBs). With most cyberattacks targeting this segment, the additional funding empowers Ostra to scale capabilities that are often out of reach for smaller organizations. 
 

Growth Initiatives Powered by Funding

Ostra plans to allocate the proceeds toward:

• Expanding its customer-facing teams—from account management to customer success.
• Strengthening its channel partner recruitment and support programs.
• Accelerating its go-to-market strategy, fueled by a channel-first model through trusted MSPs and advisors   .

Why It Matters

For too long, SMBs have faced a cybersecurity gap: limited resources, fragmented IT setups, and a rising threat landscape. Ostra addresses this with a fully managed, multi-layered Security-as-a-Service, combining enterprise-grade tools with expert human support   .

The Series A extension is more than funding—it’s a strategic push toward making comprehensive cyber protection accessible to a broader market.