Who do we work for? Our client portfolio is a mixture of agencies (which we work for as a subcontractor) and companies (which we work for directly), e.g. with their marketing department, HR or corporate communications. Browse a few customer testimonials in the slider below. Scroll further down for a list of selected international clients (in no particular order). Or see some examples of Our Work.
Most people know us for our marketing copy, specifically the quality and reliability of our English and German copywriting. We also do quite a lot of conception work, from high-level brand positioning to channel-specific campaign strategies. Whom do we do this for? Here are some of the international clients we work for, whether directly for companies or advertising agencies.
Direct clients (selection)
Our direct clients come from a range of sectors, from publishing and banking to healthcare and mobility. Please note that not all customers allow us to promote the fact that we work for them. This is especially true of public institutions, e.g. of the European Union. Here is a selection of our international clients from diverse commercial sectors.
Siemens Mobility GmbH
Siemens Mobility is a world leading manufacturer of trains and rail technology. Since 2022, steelecht has been supporting their marketing department with strategic consulting, copywriting, transcreation and editing, e.g. for LinkedIn stories, website texts and white papers.
ING DiBa AG
ING-DiBa AG, based in Frankfurt am Main, is one of the largest and most popular direct banks in Germany. Since 2018, steelecht has been supporting their HR department with marketing copy, especially the transcreation and editing of advertisements, flyers, website texts and testimonials in English and German.
NetApp
NetApp is known as the intelligent data infrastructure company, specialized in data storage hardware, software and cloud services. Since 2025, steelecht supports their marketing department with English and German copywriting and transcreation of customer success stories.
Paul Hartmann AG
Situated in the heart of southern Germany, Paul Hartmann AG is a world leader in medical solutions, specifically in the fields of wound care, incontinence management, disinfection and surgical efficiency. Since 2015, steelecht has been providing their corporate communications team with strategic consulting as well as English and German copywriting, transcreation and editing, e.g. of internal publications, website texts and crisis communications.
NewTelco GmbH
NewTelco is a leading global managed services provider specialized in advanced telecommunications and data center solutions for international enterprises, SMEs and network operators. Since 2021, steelecht provides their marketing department with strategic consulting and creative solutions for their local and international communications in English and German, e.g. flyers, website texts and social media posts.
Frankfurter Buchmesse GmbH
Ever since Gutenberg invented the printing press, the Rhine-Main area of Germany has been a hub of publishing innovation. Today, it’s also home to world’s largest publishing event, Frankfurter Buchmesse, a steelecht client since our founding in 2005 (an impressive testimony for our quality and reliability). We support their marketing department with transcreations of marketing copy into English and German.
INDEC GmbH & Co. KG
INDEC is a leading provider of competitive benchmarking tools, such as their software GOBENCH. Since 2024, steelecht supports their marketing department with English and German transcreation and editing, e.g. of marketing mailings and website texts.
Cofinity-X GmbH
Cofinity-X is a leading dataspace enabler for the secure and sovereign exchange of data in the automotive industry, based on the independent standards of Catena-X. Since 2024, steelecht has been providing their marketing department with strategic consulting as well as English and German copywriting for their website and blog.
Testo SE & CO. KGaA
Testo is a market-leading manufacturer of measuring instruments and solutions based in Germany’s Black Forest. Since 2025, steelecht provides their marketing department with campaign strategies, creative solutions as well as English and German copywriting for their website.
Agencies (selection)
On the agency side, we work with global advertising agencies, specialized communication agencies as well as a handful of neighborhood graphic studios in need of text support. Please note that we generally do not publicly share the names of the customers we work for via agencies, just the sectors. This is a selection of agencies of different sizes we actively collaborate with, offering creative solutions as well as English and German copywriting.
Goebel und Mattes GmbH
Goebel+Mattes is an owner-operated media production and advertising agency based in Frankfurt am Main. steelecht has worked closely with them since 2012, providing English and German copywriting, transcreation and editing for their international clients in the IT sector.
Vier für Texas GmbH & Co. KG
Vier für Texas is a mid-sized advertising agency based in Frankfurt am Main. Since 2017, steelecht has been providing them with English and German copywriting, transcreation and editing for their international clients in the agtech, medtech and electronics industries.
Syzygy Deutschland GmbH
Syzygy is one of Germany’s leading digital agencies. Their creative solutions bring together all the key elements for their clients’ digital success. steelecht has been providing Syzygy with strategic consulting and marketing copy in English since 2006, especially for their international clients in the automotive sector.
Urban Media Project GmbH & Co. KG
Urban Media Project is an up-and-coming advertising agency just around the corner from steelecht in Offenbach am Main. Since 2017, we have been providing them with English and German copywriting, transcreation and editing, especially for their clients in the public sector.
creative republic
creative republic is an owner-operated design agency based in Frankfurt am Main. Since 2016, steelecht has been providing them with English and German copywriting, transcreation and editing, mostly for their clients in the international development aid sector.
papabogner GmbH
papabogner is a young digital agency based in Vienna, Austria, offering creative solutions for their international clients. Since 2022, steelecht has been providing them with English and German copywriting, transcreation and editing for their clients in the banking and mobility sectors.
Need marketing copy or creative solutions like the ones described here? Are quality and reliability important to you? Join our pool of international clients.