Insights

Security Expertise Below0Day is a focused security services firm with a diverse team of penetration testers, malware analysts, security architects, audit and policy experts, and trainers. This positions them as a strategic partner for comprehensive security assessments, remediation support, and tailored training programs for clients seeking mature security programs.

SMB to Niche With a small team (2-10 employees) and revenue in the lower mid-range, Below0Day appears well-suited to serve mid-market and small enterprise organizations that need specialized, high-touch security services without the overhead of larger firms.

Tech Stack Fit Their use of modern cloud and collaboration tools (Google Cloud Platform, Microsoft Azure, OAuth, Tailwind CSS) suggests the ability to deliver scalable security engagements for cloud-first environments, making them attractive to clients migrating to or operating in hybrid cloud setups.

Regional Presence Based in Milwaukee with a nationwide team, there is potential to target midwestern and national clients seeking distributed security expertise, as well as opportunities to partner with regional MSPs for joint offerings.

Growth Opportunities Revenue indicates growth potential to upsell advanced services such as managed security services, ongoing training programs, and policy audits. Partnerships with larger vendors or security tooling providers could accelerate client acquisition and expand service lines.

Below0Day Tech Stack

Below0Day uses 8 technology products and services including Google Fonts API, OAuth, JSON-LD, and more. Explore Below0Day's tech stack below.

  • Google Fonts API
    Font Scripts
  • OAuth
    Identity And Access Management
  • JSON-LD
    Javascript Frameworks
  • Swiper
    Javascript Libraries
  • Priority Hints
    Performance
  • Bootstrap
    UI Frameworks
  • Cloudflare Insights
    Web Analytics
  • PortSwigger Burp Suite
    Web Application Firewalls

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

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.

How much revenue does Below0Day generate?

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As of August 2026, Below0Day's annual revenue is estimated to be $1M - $10M.

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 August 2026, Below0Day has approximately 5 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 Google Fonts APIOAuthJSON-LDSwiperPriority HintsBootstrapCloudflare InsightsPortSwigger Burp Suite.

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

NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2016
Employees
2-10

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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