Ostra Security
Ostra Security is a managed security services provider delivering tiered 24/7 SOC monitoring, MDR, SIEM, and endpoint security to small and mid-sized businesses across healthcare, finance, education, and other verticals. It combines direct sales with an MSP channel partner model and operates from Eden Prairie, Minnesota.
- Company typePrivate
- Founded2017
- HeadquartersEden Prairie, United States
- Headcount51–100
- GTM typeB2B
- OfferingServices
What Ostra Security does
Ostra Security is a managed security services provider (MSSP) that delivers enterprise-grade cybersecurity to small and mid-sized businesses (SMBs) lacking internal security teams. Founded in 2017 and headquartered in Eden Prairie, Minnesota, the company offers a tiered subscription portfolio organized around three bundles — Ostra Essentials, Ostra Core, and Ostra Plus — that bundle 24/7 SOC monitoring, Managed Detection and Response (MDR), Managed SIEM, endpoint security, and risk assessments into recurring annual contracts with quote-based pricing. The platform is anchored by the Pulse XDR platform acquired from Blackwell Security in August 2025, which unifies detection and response across operational and digital assets, and incorporates the company's proprietary Cybersecurity Mesh Architecture (CSMA) and Data River threat intelligence system. Service delivery is human-led with AI-assisted detection, behavioral analytics, and automated triage playbooks supporting SOC analysts.
Ostra serves SMB and mid-market clients across financial services, healthcare, education, legal, manufacturing, retail, and trades verticals, with named customers including Foley Public Schools, White Oaks Wealth Advisors, and Midwest Mutual Insurance Carrier. The go-to-market combines direct sales with a channel partner model targeting MSPs, IT consultants, vCISOs, and incident response firms, allowing partners to deliver Ostra's security capabilities under their own client relationships. The company has raised approximately $18 million across multiple funding rounds from 2020 through 2025, with the most recent being a $9.5 million Series A extension in August 2025 co-led by General Catalyst and Rally Ventures. Leadership includes CEO Andrew Tewksbury, Founder Michael Kennedy, and Head of Cyber Threat Engineering & Response Seth Feldman. The company rebranded from Ostra Cybersecurity to Ostra Security in August 2025 to reflect its evolution from a tool-centric posture to an outcomes-based managed security model.
Ostra Security firmographics
Firmographics- Name
- Ostra Security
- Legal name
- Ostra Cybersecurity, Inc.
- Website
- https://ostrasecurity.com
- Company type
- Private
- Founded year
- 2017
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Ostra Security is a managed security services provider delivering tiered 24/7 SOC monitoring, MDR, SIEM, and endpoint security to small and mid-sized businesses across healthcare, finance, education, and other verticals. It combines direct sales with an MSP channel partner model and operates from Eden Prairie, Minnesota.
- Ownership category
- akta.pro rank
Ostra Security industry classification
Industry- Product category
- Managed Security Services
- NAICS
- Computer Systems Design and Related Services (5415), Computer Facilities Management Services (541513), Security Systems Services (56162)
- SIC
- Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Integrated Systems Design (7373)
- akta.pro primary industry
- Managed Security Services (MSSP) & 24/7 SOC Operations (BPAKAHAA)
- akta.pro secondary industries
- Security Operations Center (SOC) as a Service (BPAEADAB), Endpoint Security Managed Services (EDR/XDR) (BPAEADAH), Vulnerability Management & Penetration Testing Services (BPAEADAD), Security Awareness & Phishing Simulation Managed Services (BPAEADAK)
Keywords
Where Ostra Security is headquartered
LocationHeadquarters
- HQ city
- Eden Prairie
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Ostra Security business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- Managed Security Services Subscription: Subscription-based managed security services delivered in tiered bundles (Essentials, Core, Plus). Each tier bundles technology, expert human talent, and 24/7 remediation into a single subscription. Pricing is quote-based and aligned to customer risk profile, compliance needs, and business objectives.
- Professional Services (Add-ons): Additional paid services including managed email security, managed VPN/web gateway, managed vulnerability scanning, managed security awareness training, and managed ransomware resiliency. These are add-on modules to the core subscription tiers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Essentials: Focused SOC coverage for businesses needing expert monitoring without replacing tools or team. |
| Subscription | Annual | Core: Targeted detection and response with managed EDR and hands-on SOC collaboration. |
| Subscription | Annual | Plus: Complete managed security stack with strategic collaboration, threat alignment, and automation. |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels5 records
Ostra Security product offering
Product offeringCore offering
Ostra Security is a managed security services provider (MSSP) that delivers 24/7 SOC monitoring, managed detection and response (MDR), managed SIEM, endpoint security, penetration testing, and risk assessments to small and mid-sized businesses. The offering is delivered through tiered subscription bundles (Essentials, Core, Plus) that combine proprietary technology, including the Pulse XDR platform acquired from Blackwell Security, with human-led SOC expertise to provide outcome-based cybersecurity protection.
Product overview
Ostra Security is a managed security provider offering a tiered, subscription-based portfolio of managed security services organized around three bundles (Essentials, Core, and Plus) plus specialized services. The platform is anchored by its proprietary Pulse XDR platform (acquired from Blackwell Security), which unifies detection and response across operational and digital assets. Core services include Managed Detection & Response (MDR), Managed SIEM, Endpoint Security, and Penetration Testing Services, supplemented by Strategy & Advising and Risk & Cyber Maturity Assessments. The company also offers add-on services such as Managed Email Security, Managed VPN/Web Gateway, Managed Vulnerability Scanning, Managed Security Awareness, and Managed Ransomware Resiliency. The service model is human-led, combining 24x7 SOC analysts with AI-assisted detection, automation playbooks, and behavioral analytics. The company serves SMBs and mid-market clients across finance, healthcare, education, legal, manufacturing, retail, and trades industries.
Differentiator
Problem solved
Functional benefit
Brands
- Pulse: XDR platform developed by Blackwell Security, integrated into Ostra's managed security services for real-time detection, response, and remediation.
Products and services
- Managed Security Services Core managed security provider (MSSP) offering providing expert monitoring, threat detection, and guided response to help organizations cut through alert fatigue and gain operational clarity. Targets organizations without dedicated cybersecurity teams.
- Managed Detection & Response (MDR) MDR solution combining advanced detection, real-time response, and deep context to provide a faster path to security outcomes. Includes 24x7 SOC monitoring, managed EDR, and human-led response.
- Managed SIEM Managed Security Information and Event Management (SIEM) service providing expert monitoring, threat detection, and guided response with operational clarity.
- Endpoint Security Fully managed endpoint security solution providing fast, effective incident detection and response. Identifies attacker behavior, analyzes live memory for embedded threats, and enables secure remote investigations.
- Strategy & Advising Consulting and advisory services helping organizations navigate compliance and develop tailored security strategies, including assessment services, tabletop simulations, and strategy and roadmap development.
- Risk & Cyber Maturity Assessments Expert-led risk assessment process built on NIST standards to identify vulnerabilities, evaluate risk impact and likelihood, and prioritize remediation efforts. Delivers quantified risk levels and strategic next steps.
- Penetration Testing Services Guided penetration testing combining trusted testing partners with operational security expertise. Offers consultant-led engagement for compliance validation (SOC 2, PCI, HIPAA, ISO) and platform-driven engagement aligned with software development cycles.
- Pulse (XDR Platform) Next-generation managed XDR platform acquired from Blackwell Security. Designed for real-time detection, response, and remediation, bringing together operational and digital assets into one centralized system.
- MXDR (Managed Extended Detection & Response) Managed XDR combining Ostra's human-led service model with Blackwell's Pulse platform to deliver outcome-driven managed security with real-time detection, response, and remediation.
Quantifiable outcome
- Cost savings equivalent to employing three full-time cybersecurity professionals
- +1 more outcomes
Companies that use Ostra Security
Customer profileNamed customers3 records
Segments8 records
Ideal customer profiles5 records
Ostra Security technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration11 records
AI capability4 records
Feature4 records
Ostra Security partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Blackwell SecuritymajorAcquired by Ostra in August 2025. Blackwell's managed XDR platform Pulse was integrated into Ostra's service model. Blackwell specialized in managed detection and response with deep technical expertise in healthcare cybersecurity (MHXDR offerings).
Scale indicators2 records
Recent moves7 records
Expansion highlights5 records
Ostra Security competitors and assessment
Company assessmentDirect peers
- Huntress: SMB-focused managed detection and response provider with strong channel/MSP distribution. Directly comparable to Ostra's SMB focus, channel-led GTM, and managed EDR-centric offering.
- Blackpoint Cyber: MSSP delivering managed detection, response, and compliance for SMBs primarily through the MSP channel. Comparable to Ostra in target segment, partner-led motion, and security-as-a-service model.
- eSentire: MDR and managed security services provider serving SMB and mid-market with 24/7 SOC and XDR. Comparable to Ostra in service breadth, tiered offerings, and customer segment focus.
- Arctic Wolf Networks: Leading SMB-focused MDR/MSSP offering 24/7 SOC monitoring, managed detection, and risk management. Directly comparable to Ostra in target customer (SMB/mid-market), subscription model, and outcome-based security positioning.
- Expel: MDR provider known for transparency and outcome-based security. Directly comparable to Ostra in managed detection and response for mid-market with a strong emphasis on customer-visible security outcomes.
- Proficio: Managed security services provider offering MDR, SIEM, and SOC-as-a-service to mid-market and enterprise. Comparable to Ostra in 24/7 SOC and managed detection services, though with stronger mid-market and enterprise focus.
Broad incumbents
- Secureworks: Established MSSP offering managed detection, response, and consulting across SMB to enterprise. Comparable as a managed SOC competitor, but serves a much broader customer base and product portfolio than Ostra.
- Sophos (Managed Detection and Response): Established cybersecurity vendor with a managed detection and response service for SMBs typically delivered through MSPs. Comparable as a competitor in SMB MDR, but operates as part of a much broader endpoint and network security portfolio.
- ConnectWise (Cybersecurity Management): Large platform provider serving MSPs with security and operational tooling including SOC and SIEM capabilities. Comparable to Ostra as a channel-partner-aligned security provider, though much broader in scope.
Emerging players
- Field Effect: SMB-focused managed detection and response provider offering bundled cybersecurity with simplified pricing. Comparable to Ostra in SMB customer focus and outcome-oriented positioning, but smaller scale and Canadian-domiciled.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Ostra Security social profiles
Digital presenceOstra Security financial estimates
Financial estimateRevenue estimate
Valuation estimate
Ostra Security leadership team
Management profileNumber of profiles
Profiles4 records
Ostra Security subsidiaries and ownership
Company hierarchySubsidiaries1 record
Ostra Security funding detail
Funding detailFunding overview
Funding rounds5 records
Investors3 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Ostra Security M&A and investment
M&A and investmentM&A1 record
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Ostra Security
What does Ostra Security do?
Ostra Security is a managed security services provider (MSSP) that delivers 24/7 SOC monitoring, managed detection and response (MDR), managed SIEM, endpoint security, penetration testing, and risk assessments to small and mid-sized businesses. The offering is delivered through tiered subscription bundles (Essentials, Core, Plus) that combine proprietary technology, including the Pulse XDR platform acquired from Blackwell Security, with human-led SOC expertise to provide outcome-based cybersecurity protection.
Is Ostra Security a public or private company?
Ostra Security is a private company. It is classified as venture growth investor backed and is currently operating.
When was Ostra Security founded?
Ostra Security was founded in 2017. It employs 51 to 100 people.
Where is Ostra Security based?
Ostra Security is headquartered in Eden Prairie, United States, in the North America region.
How does Ostra Security make money?
Two revenue lines are on record. Managed Security Services Subscription is the primary driver. The others are professional Services (Add-ons).
Who are Ostra Security's main competitors?
Direct peers on record are Huntress, Blackpoint Cyber, eSentire, Arctic Wolf Networks, Expel and Proficio. Broad incumbents are Secureworks, Sophos (Managed Detection and Response) and ConnectWise (Cybersecurity Management). Field Effect is listed as an emerging player.
Does Ostra Security have an API?
No public API is recorded for Ostra Security.
What industry is Ostra Security in?
Ostra Security's product category is Managed Security Services. Its primary akta.pro industry code is BPAKAHAA, Managed Security Services (MSSP) & 24/7 SOC Operations, with a secondary code of BPAEADAB, Security Operations Center (SOC) as a Service. Its NAICS code is 5415 and its SIC code is 7370.