J4 Systems

j4systems.com

computer networking

j4systems.com

Rocklin, California, United States

11-50 employees

4087000 revenue

LinkedIn Profile

About J4 Systems

it consulting, disaster recovery, server, desktop & storage virtualization, system integrator, network architecture, managed services, help desk, application training, microsoft, cisco, citrix, vmware, hp, datacore, dell, it planning, storage solutions, active directory, it staffing

J4 Systems's Tech Stack

Decision Makers at J4 Systems

1 contact

John Joseph

Owner

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11 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

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J4 Systems's Position in the StackWho Database

• J4 Systems is 1 of 1,024 computer networking companies tracked in StackWho.
• 1,019 computer networking companies in our database have verified decision-maker emails (100% of the cohort).
• 53,147 companies in California are in the StackWho database.
• 384 computer networking companies are in the 11-50 employee range (same size as J4 Systems).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated July 2026.

Frequently Asked Questions

What technology does J4 Systems use?

J4 Systems uses DNS Made Easy, Outlook, Microsoft Office 365, Mobile Friendly, Google Font API, Bootstrap Framework, and 5 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at J4 Systems?

StackWho has verified email addresses for 1 decision maker at J4 Systems. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach J4 Systems directly for sales, recruiting, or partnerships.

What industry is J4 Systems in?

J4 Systems operates in the computer networking industry, headquartered in Rocklin, California, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export J4 Systems's contact data?

Yes. StackWho Pro members can export decision maker contact data for J4 Systems and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.