About us

Dynamic, targeted and experienced

We work for our customers regardless of the industry or manufacturer.

We grew up with the high demands in the airport environment in order to support our customers today with tailor-made and innovative IT services and technical solutions.

Our standard

We generate significant reduction of effort in the IT sector for our customers for whom we ensure the highest availability of the equipment. In addition, we offer a comprehensive portfolio regarding fields of activities and service level.

Flexibility to adapt to individual customer projects and target orientation in solving the requirements characterize our company.

Development of the company until today

Today, we are a multivendor and intersectoral company. It all started at the airports environment. Follow our path through history.


IER goes PROFLEXIS. With the renaming, we are now also demonstrating our independence to the outside world.


Project start at the new Berlin Airport (BER). Supervision of the SBDOs and SSKs. Betreuung der SBDOs und SSKs.


Founding of the Access & Security division


New successes

Long-term major service order within the public transport sector and substantial order for self-service bag drop systems (SBDO) at airports

IER GmbH becomes independent

Management buy out by Mr. Bajus in order to ensure further diversification of IER GmbHs service business, 50 employees

Growth in EUC und HNS business

The business units EUC and HNS care about more than 20 customers

Change of strategy: multivendor

Change of strategy from IER-product oriented services towards multivendor IT services

End User Computing (EUC) und Hybrid Network Services (HNS)

Creation of the business units End User Computing (EUC) and Hybrid Network Services (HNS) and gaining of initial major customers.

Frankfurt (Main) airport

Order for on-site CUTE services at Frankfurt (Main) airport, 40 employees

Berlin Schönefeld and Tegel airports

Order for on-site CUTE services at the airports of Berlin (Schönefeld and Tegel), 25 employees

Bremen airport

Order for on-site CUTE services at Bremen airport

Leipzig airport

Order for on-site CUTE services at Leipzig airport

Scandinavia and Baltics

Take-over of the service responsibility for Scandinavia and Baltics within the IER group by take-over of the IER branch office in Scandinavia.

Frankfurt (Main) and Munich airports

Order for servicing the first ever self-boarding system in Europe for a well-known German airline at the airports of Frankfurt (Main) and Munich.

Hamburg airport

Contract for on-site CUTE services at Hamburg airport

Integration into IER SAS, France

Sale of the majority shares by Mr. Bajus and Mr. Schulte to IER SAS, France. Continuation of business as a service branch office for the arera of central and eastern Europe Fortführung des Geschäfts als Serviceniederlassung für den Bereich Zentral- und Osteuropa

Hannover airport

First contract in the aviation sector, on-site services at Hannover airport.

Foundation of Bajus & Schulte GmbH

General IT services, 5 empoyees