Insights

Boutique security firm Below0Day is a boutique security firm with a distributed team across the United States, delivering penetration testing, malware analysis, security architecture, audit and policy services, and training. This breadth indicates opportunities to lead red team exercises, ongoing vulnerability assessments, and policy or architecture reviews for clients. There is potential to package recurring training and remediation coaching as part of a long-term security program for mid-market customers.

Remediation focus This emphasis on clear vulnerability findings and streamlined remediation positions them well for bundled vulnerability management, remediation planning and validation, and incident response readiness services. Sales plays could include retainer-based vulnerability scanning, patch management support, and secure configuration reviews integrated with existing assessments.

Web app exposure With experience around common web technologies, there is an opportunity to offer application security testing, secure SDLC integration, and code review services. They can expand into SAST/DAST, targeted web application pentests, and developer training to reduce secure coding vulnerabilities, aligning with client demand for secure software delivery.

US market reach Based in Milwaukee but with a distributed nationwide team, they can pursue regional and national opportunities. This enables partnerships with national MSPs or security vendors seeking specialized pentesting and training capabilities, and outreach to Midwest industries with regulatory needs for cybersecurity.

Growth potential Operating as a lean, high-skill practice, they are well positioned for scalable offerings such as managed security services, continuous vulnerability monitoring, and training programs. These upsell paths can expand engagements with existing clients and attract mid-market companies seeking a full-stack security partner.

Below0Day Tech Stack

Below0Day uses 8 technology products and services including Twemoji, OAuth, Google Cloud Platform, and more. Explore Below0Day's tech stack below.

  • Twemoji
    Font Scripts
  • OAuth
    Identity And Access Management
  • Google Cloud Platform
    Infrastructure As A Service
  • Lightbox
    Javascript Libraries
  • Microsoft Azure
    Platform As A Service
  • Tailwind CSS
    UI Frameworks
  • Google Analytics
    Web Analytics
  • Contact Form 7
    Web Platform Extensions

Media & News

Below0Day's Email Address Formats

Below0Day uses at least 1 format(s):
Below0Day Email FormatsExamplePercentage
First.Last@below0day.comJohn.Doe@below0day.com
82%
FLast@below0day.comJDoe@below0day.com
9%
FirLast@below0day.comJohDoe@below0day.com
9%

Frequently Asked Questions

Where is Below0Day's headquarters located?

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Below0Day's main headquarters is located at 123 Milwaukee Avenue Milwaukee, Wisconsin United States. The company has employees across 1 continents, including North America.

What is Below0Day's official website and social media links?

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Below0Day's official website is below0day.com and has social profiles on LinkedIn.

What is Below0Day's NAICS code?

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Below0Day's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does Below0Day have currently?

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As of May 2026, Below0Day has approximately 6 employees across 1 continents, including North America. Key team members include Founder & President: J. L.Founder & Redteam Lead: V. V.Senior Technical Project Manager: S. J.. Explore Below0Day's employee directory with LeadIQ.

What industry does Below0Day belong to?

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Below0Day operates in the Computer and Network Security industry.

What technology does Below0Day use?

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Below0Day's tech stack includes TwemojiOAuthGoogle Cloud PlatformLightboxMicrosoft AzureTailwind CSSGoogle AnalyticsContact Form 7.

What is Below0Day's email format?

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Below0Day's email format typically follows the pattern of First.Last@below0day.com. Find more Below0Day email formats with LeadIQ.

When was Below0Day founded?

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Below0Day was founded in 2016.
Below0Day logo

Below0Day

Computer and Network SecurityWisconsin, United States2-10 Employees

Below0Day is a Milwaukee-based company operating in the computer and network security sector. It brings together a multidisciplinary team of security professionals to identify vulnerabilities and support remediation. The team includes penetration testers, malware analysts, security architects, audit and policy specialists, and trainers.

The firm serves clients across the United States, reflecting a nationwide client base. Its work centers on delivering a clear assessment of weaknesses in clients' systems and facilitating their remediation in a practical, efficient manner. Based in Milwaukee, Wisconsin, Below0Day operates within the broader field of computer and network security.

Section iconCompany Overview

Headquarters
123 Milwaukee Avenue Milwaukee, Wisconsin United States
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2016
Employees
2-10

Section iconMedia & News

Section iconFunding & Financials

  • $1M$10M

    Below0Day's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $1M$10M

    Below0Day's revenue is estimated to be in the range of $1M$10M

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