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DefSecurity Systems Services · 1001-5000 · B2B contacts & data

70 Decision makers
+1 New (6 months)
5,000 Employees
1958 Founded

Decision Makers at Def

Total identified

70 decision makers identified 17 C-Level 2 VP 51 Heads

New decision makers — last 6 months

+1 a strong signal to time your outreach 1 Heads
Preview available contacts
Decision maker Email Phone

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Organizational Chart of Def

Roles identified within Def's leadership team, based on public professional data.

Def's Full Organizational Chart

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Job title Department People Action

Team Structure headcount by department

Technical
133
Other
99
Sales
96
Operations
93
Project Management
51
Trades
33
Administrative
26
Finance
25

Departments actively hiring 3 departments

Engineering and technical
Finance & accounting
Operations

These departments at Def are actively recruiting: a strong signal to time your outreach.

Companies similar to Def

Latest news at Def

  1. Appointment

    New Directeur Contrôle Projet appointed — Project management

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About Def

Def is a Security Systems Services company, based in France. Founded in 1958, the company counts about 5,000 employees. As part of the broader Administrative and Support Services sector, Def operates specifically in the Security Systems Services segment. Def is a B2B company, primarily serving business clients and professional organisations. This profile compiles key information about Def, including industry, size, location, business signals, and B2B contacts, to help sales teams qualify the account and identify the right decision makers before reaching out.

Activity & Market

Def is positioned on the Security Systems Services segment, within the Administrative and Support Services sector. As a B2B company, Def primarily serves business clients and professional organisations. In terms of structure, it is registered as “Self-owned”.

How to prospect Def's departments

Technical

With 133 people, this is the organisation's biggest team, and it is hiring. Technical teams verify claims: public docs, a sandbox or a free tier will do the selling for you.

Other

With 99 people, this is the organisation's second pillar. Hard to read from the outside: use a first exchange to map who does what before pushing an offer.

Sales

96 people work in this department. These profiles handle outreach daily and respond well to concrete pitches about pipeline, productivity and prospecting tooling.

Operations

This 93-person department is actively recruiting. Pitch measurable time savings and error reduction: the metrics this function is judged on.

Project Management

A team of 51 people. Methodology debates are constant here: anchor your pitch in their existing framework rather than against it.

Finance

Hiring is underway in this team of 25 people. Build your pitch around ROI, payback period and risk reduction: the language this department speaks.

FAQ Def

What industry does Def operate in?

Def is active in the Security Systems Services industry, specifically in the Administrative and Support Services category.

How many employees does Def have?

Def has approximately 5,000 employees (in the 1001-5000 range). This figure is an estimate to help qualify the account, not a legally certified number.

How do I find contacts at Def?

With Zeliq, you can find the right decision makers at Def, get their verified emails and direct phone numbers, and engage them through targeted multichannel sequences.

Where is Def headquartered?

Def is headquartered in France.

Which departments are hiring at Def?

Hiring is currently active at Def in these departments: Engineering and technical, Finance & accounting, Operations. A useful signal to prioritise and time your prospecting.

What is the organizational chart of Def?

Roles identified within Def's organization include Executive, HR Business Partner, President, Directeur Régional, Ingénieur Commercial Travaux Neufs. With Zeliq, you can enrich each of these roles with verified emails and direct phone numbers.

Which decision makers recently joined Def?

In the last 6 months, Def appointed new decision makers including Directeur Contrôle Projet. Newly appointed leaders typically review tools and vendors early on — their verified contacts are available on Zeliq.

Why use this data before prospecting Def?

With Def's firmographics and business signals at hand, you can prioritise the account, personalise your approach, and contact the right people straight away.