GDS · NDC · Direct connect

Next level deep airline content integration.

We connect tour operators, airlines, cruise lines, travel agents and tech providers to the world’s flight inventory — and help them unlock its full potential with tailor-made, in-house solutions.

A wide-body airliner on the apron at sunrise
Customers

You’re in good company.

For more than 25 years we have been the technology partner for global GDS players, tour operators, clubs, consolidators, travel agencies and airlines.

TUI
ANUSA
Traso
L’TUR
FTI
Swiss International Air Lines
Products

The whole value chain.

Flight content is more fragmented than ever. We bring GDS, direct connect and NDC together under one roof — including the ancillary services that depend on getting the underlying flight delivery right.

  • GDS integration — Amadeus, Sabre and Travelport, normalised.
  • NDC ready — Level 3 and 4 capable across major airline programs.
  • Direct connect — bespoke pipelines to carriers and aggregators.
  • Ancillaries — seats, bags and services where they belong: in the shop.

MercadoSERVER

A sturdy high-end transaction platform processing millions of bookings and unifying different APIs.

RetailENGINE

An NDC offer & order management platform for airlines to create products in real-time.

RulesENGINE

Select, calculate and design the perfect portfolio of airline content with our sales preference tool.

MercadoAGENT

Display, compare, and book flights from all your relevant content sources in one unified GUI.

Partners

A solid solution — just for you.

Our network covers the full picture: flight content providers, technology partners, and best-in-class solutions for mid- and back-office, fulfilment and payment. We assemble what fits your business — not what fits a template.

Corporate culture

A place people stay.

Owner-managed for three generations, with the perks of a modern tech company and the calm of a stable family business.

New Work

Home office, workation and flexible hours — we trust our people to do their best work from wherever it happens.

Job bike

Lease a bike through our employer programme and ride to work, the gym or the bakery — the choice is yours.

Family business

Owner-managed for three generations. Short paths, real conversations and decisions that stick.

Tuition reimbursement

We invest in your craft — certifications, conferences and further education tailored to your trajectory.

Drinks, fruits & candy

Free beverages, fresh fruit and — yes — candy as well. Fuel for long sprints and quick syncs.

City centre & parking

Right in the centre of Darmstadt with free parking, the train station nearby and lunch options on every corner.

Michael Ehlers, CEO of InteRES GmbH
Management

Michael Ehlers

Chief Executive Officer

Michael leads InteRES with the same long-view approach that has guided the company since 1997 — pragmatic engineering, durable customer relationships and a deep belief that the right flight product, delivered well, still moves the industry forward.

Get in touch
The company

25+ years of building flight technology.

InteRES was founded in 1997 and ranks among the first three providers of internet booking technology who are still in business today.

Our mission has not changed: delivering the right flight product to each and every traveler — business or leisure, online or in an agency.