CitadeltaCITADELTA

About us

Citadelta is a master-led security firm from Berlin with two divisions: we assess what a site needs — and provide the officers when it needs them. The same person runs both, and that person has done the job.

Ahmad Abu Zer

Ahmad Abu Zer

Managing director, certified security master (IHK)

I have been in the security industry since 2019 and started where most people start: on shift, at the gate. For the last five years I have been in charge — as team leader, shift manager and site manager, with duty and personnel planning and responsibility for day-to-day operations. The master qualification changed little beyond the title; I already had the responsibilities.

In 2026 I passed the master's examination in protection and security, the highest qualification in the trade. It covers legal conduct, business administration, security technology, the design of security services, and vocational training. Seven years on the job were already behind me; the examination did not replace that practice, it organised it.

I founded Citadelta because I wanted to offer security differently from how the market usually sells it: not as a block of hours, but as a result somebody puts their name to. That has grown into two divisions that belong together — consulting says what is needed, guarding delivers it. Anyone who wants only one of them gets only one.

Qualifications

  • Meister für Schutz und Sicherheit — certified security master (IHK), 2026
  • Bachelor Professional in Security and Protection (IHK), 2026
  • Certified trainer under the AEVO
  • Competence certificate under § 34a German Trade Regulation Act
  • In the security industry since 2019

What we stand for

We stand behind the result

A concept is not filing. We take responsibility for it holding up — and support the rollout if that is what you want.

We decline when it doesn't fit

An engagement we cannot deliver properly is not an engagement. An honest no beats a concept that the first incident disproves.

Assess first, then recommend

Every recommendation starts with what actually needs protecting. If the answer is that nothing needs doing, that is what the report says — even when we earn nothing from it.

Experience

Seven years in operations, five of them in charge

Team leadership, shift management, site management, duty and personnel planning: I have run sites, written rotas, assigned and briefed officers — on day duty as well as night duty — and carried the responsibility when things went wrong. That is why an assessment here does not stop at the folder. Anyone who has built rotas himself can tell from a specification whether it can be staffed at the price quoted at all.

What is not listed here

We do not list certifications or qualifications we do not hold — and we do not take on work we have no basis for. Our focus is physical and organisational security: the site, the procedures, the people. Where a project goes beyond that, we say so openly and work with specialists rather than claiming it ourselves.

Let's talk

A first call is free and usually settles in twenty minutes what your situation actually is — and which of the two divisions is right for it.

Arrange a call