What technologies does Defendify use?

Defendify uses Rackspace MailGun, Outlook, CloudFlare Hosting, MailChimp SPF, Mailchimp Mandrill. View their full technology stack — including all 19 detected tools — on StackWho.

Who is the Co-Founder of Defendify?

Andrew Rinaldi is the Co-Founder at Defendify. Get verified contact information on StackWho.

Who is the Co-Founder & CEO of Defendify?

Rob Simopoulos is the Co-Founder & CEO at Defendify. Get verified contact information on StackWho.

Where is Defendify located?

Defendify is based in Portland, Maine, United States.

Defendify

defendify.io

computer & network security

defendify.io

Portland, Maine, United States

11-50 employees

4200000 revenue

LinkedIn Profile

About Defendify

it security, education, consulting, training, cybersafety, phishing, threat detection, threat prevention, physical security, data security, cybersecurity awareness, information security, threat response, cybersecurity, managed detection, response, penetration testing, social engineering, cyber security, security modules integration

Defendify's Tech Stack

AI/ML

Decision Makers at Defendify

2 contacts

Andrew Rinaldi

Co-Founder

a***@defendify.com Sign up to view

Rob Simopoulos

Co-Founder & CEO

r***@defendify.com Sign up to view

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19 technologies detected · 2 decision makers · 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.

Defendify's Position in the StackWho Database

• Defendify is 1 of 4,889 computer & network security companies tracked in StackWho.
• 4,875 computer & network security companies in our database have verified decision-maker emails (100% of the cohort).
• 518 companies in Maine are in the StackWho database.
• 2,072 computer & network security companies are in the 11-50 employee range (same size as Defendify).

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 Defendify use?

Defendify uses Rackspace MailGun, Outlook, CloudFlare Hosting, MailChimp SPF, Mailchimp Mandrill, VueJS, and 13 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Defendify?

StackWho has verified email addresses for 2 decision makers at Defendify. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Defendify directly for sales, recruiting, or partnerships.

What industry is Defendify in?

Defendify operates in the computer & network security industry, headquartered in Portland, Maine, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Defendify's contact data?

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