# Ostra Cybersecurity

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/ostra-cybersecurity

- Industry: Software
- Headquarters: Eden Prairie, US
- Website: www.ostra.net
- Total disclosed funding: $9.6M
- Latest round: Series A (Jun 10, 2025)
- Investors on record: 2

## About

Founded in 2017 and based in Minnesota, US, Ostra Cybersecurity, Inc. provides security services including cybersecurity protection, VPN encryption, and many others. The company was founded by Michael Kennedy. As of 2024, the company is headed by its CEO Andrew Tewksbury. In August 2025, Ostra Cybersecurity, Inc. raised USD 9.5 million in series A funding co-led by new investor General Catalyst Partners and returning investor Rally Ventures, with participation from an individual investor. The company offers multilayered fully managed security–as–service solutions to small to mid-sized businesses. The service range of the firm includes a 24/7 managed security operations center (SOC), 24/7 managed security information and event management (SIEM), endpoint security, email security, Ostra collector and sensor, and many others Ostar Encompass and Ostra Extend. The company will use the August 2025 funding for team growth and further research and development.

## Funding rounds

- Series A, Jun 10, 2025, $5.5M — General Catalyst Partners, Rally Ventures
- Series A, Mar 14, 2024, $1.6M — Rally Ventures
- Series A, Oct 26, 2023, $2.5M — Rally Ventures

## Investors

- Rally Ventures (https://capitalatlas.ai/funds/rally-ventures) — Series A
- General Catalyst Partners (https://capitalatlas.ai/funds/general-catalyst-partners) — Series A