Diligence Security Group

diligencesecuritygroup.com

Oakland, California, United States

11-50 employees

LinkedIn Profile

About Diligence Security Group

patrol services, firewatch services, consulting, loss prevention, cybersecurity, security technology integration, guard card training, security officers, construction & real estate, security consulting, armed security officers, security technology, physical security, cctv/alarm systems, private investigations, active shooting training, security risk assessment, b2c, services, security incident reporting

Diligence Security Group's Tech Stack

AI/ML

13 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

WordPress as a CMS signals a content-driven or SMB digital presence. SEO tools, hosting solutions, and page-builder plugins are natural fits for outreach.

Diligence Security Group's Position in the StackWho Database

• Diligence Security Group is 1 of 1,900 security & investigations companies tracked in StackWho.
• 1,894 security & investigations companies in our database have verified decision-maker emails (100% of the cohort).
• 53,147 companies in California are in the StackWho database.
• 767 security & investigations companies are in the 11-50 employee range (same size as Diligence Security Group).

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

Frequently Asked Questions

What technology does Diligence Security Group use?

Diligence Security Group uses Gmail, Blue Host, Google Apps, WordPress.org, Google Font API, Vimeo, and 7 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Diligence Security Group?

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

What industry is Diligence Security Group in?

Diligence Security Group operates in the security & investigations industry, headquartered in Oakland, California, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Diligence Security Group's contact data?

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