Leading in Connected Commerce

The way into the digital future comes with changes and new possibilities for you and your company. But the transformation also brings its challenges. It is therefore essential for us to know all the variables of connected commerce across all businesses, understand them, and network them in the best possible manner for the benefit of our customers. This requires holistic, flexible, and seamlessly integrated strategies and processes.


On the journey through the dense digital jungle we are accompanied by a reliable companion who keeps us on track: our customers' needs.

We are driven by our passion for using innovative ideas to help businesses, simplifying their business processes, reacting to changes flexibly, and making everyday life less complicated for people and more comfortable on a permanent basis. Customer-centricity is not just a buzzword for us, it is our top commandment. In all our strategy and concept considerations, we always place the needs of our customers ahead of everything else and keep them in mind during the implementation phase.


Networking people with one another: We bring people together – not to mention that never before have people been so closely connected to one another as they are today. This is clearly reflected in social communities. We can access the most diverse information whenever we want. This also means that never before have we been as closely connected to brands and companies as today.


Making good use of connections: We bring customers and companies together and generate added value for both sides. We understand what is important to our customers and orientate ourselves by their needs – we share this expertise with our partners and create intelligent solutions for business processes.


Accessibility: We create experiences – at any time, at any place and precisely then when the customer wants it. Our insight into human nature, empathy and professional expertise put us in a position to be able to develop a holistic strategy for unique experiences and implement these. We achieve this in a customer-focused approach and via all touchpoints.


Getting connected in a meaningful way: We reach people on their level and bring them aboard – thereby assisting them with improving their everyday life, simplifying it or embellishing it. Integrated solutions and interfaced devices allow us to facilitate seamless transitioning for an eventful customer journey. We will help you to take advantage of the synergies available on the “Internet of Things”.


Using information: We use information in the best interests of the customer and the business – because only someone who understands the data, can generate value. This pertains to user, as well as shopping behaviour, also to information obtained from industrial plants or buildings. Purchasing processes and internal business processes thus enter the next level.

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Connected commerce is an ever-changing process. Both the type of communication and the employed technologies change more and more rapidly. Thus, we not only find the best combination of all digital possibilities individually for each company, but also ensure that we are able to react smoothly to future developments and quickly integrate innovative solutions. As digital lead agency, we provide a variety of services for this

Interdisciplinary and agile - our connected teams

We benefit and learn from each other, every day and in direct exchange. For this reason, we work in interdisciplinary teams of strategists, designers and developers to unify all our knowledge and skills to a common goal: the best possible solution for our customers.

Facts & figures

We are equipped with a special capital - a strong team of highly motivated and qualified employees. With our entire competence we are always within reach - in Bremen, Hamburg, Berlin and Munich - and also directly at your place.


Five minds, one goal – our management

  • Stefan Messerknecht

    Managing Partner (Speaker) | born 1963 in Bremen

    Stefan Messerknecht has been part of hmmh since 2006 and also speaker of the management board since that time. 


    As Managing Partner, the graduate in business management (Diplom-Kaufmann) engages in agency and company strategies, disruption as well as digital transformation for the economy and media.


    On top of his work at hmmh, Stefan Messerknecht is involved in the Rotary Club Bremen-Weser and is a member of the board of trustees of the Stifterverband der Deutschen Wissenschaft (Donors' association for the promotion of humanities and sciences in Germany).

  • Björn Portillo

    Managing Partner | born 1970 in Bremen

    Björn Portillo has been part of hmmh since 1989. Starting out as Art Director, in 2001 he became a member of the digital agency's board of management.


    In addition to the meaning of the digital transformation for the economy and media, the Managing Partner and Communications Designer occupies himself with the task of digital marketing in Connected Commerce.


    Apart from his work at hmmh, Björn Portillo is the president of the "bremen digitalmedia" branch association and is involved in fostering emerging talent in the creative economy.

  • Gerd Güldenast

    Managing Director | born 1973 in Bremen

    Gerd Güldenast has been part of hmmh since 2008. In his capacity as Managing Director he is responsible for the areas of Consulting & Connected CRM.


    The graduate economist and computer scientist occupies himself with the connections between online and offline and creates intelligent E-Commerce solutions for the customers of the digital agency.


    Thanks to the experience that Gerd Güldenast has gained as Project Manager, Consultant and Management Consultant, he is capable of linking pioneering ideas to the demands of the companies and their customers.  

  • Anemone Strzelczyk

    Member of the management board | born 1965 Bensheim/Bergstraße

    Anemone Strzelczyk has been part of hmmh since 1995. As member of the management board she is responsible for the area of Corporate Services.


    The graduate English and political scientist has assumed various management positions at hmmh, gotten to know all processes across all areas, and now exploits this to advance the optimisation of internal processes.


    Thanks to her many years of experience as Project Manager, Director Content Management and Projects & Operations, Mone Strzelczyk is capable of designing innovative ideas for the organisational development of the digital agency.

  • Marcus Person

    Managing Director | born 1972 in Hanover

    Marcus Person has been part of hmmh since 2007, and as Managing Director he is responsible for the areas of Content Management, Mobile Applications & Devices.


    The graduate marketing and sales economist places the digital transformation in the overall context of Connected Commerce and derives intelligent solutions from this, which bring together providers and their customers.


    Thanks to his many years of experience as Sales Manager, as well as Marketing and Sales Manager, Marcus Person is capable of identifying new paths in E-Business in a customer-centred way.

We’ll stick up for you together

We’re constantly faced with challenges which we enjoy overcoming with a strong partner. That way, we can respond to all requirements quickly and flexibly, and even break completely new ground.

  • SAP Hybris – Gold Partner

    SAP Hybris – Gold Partner

    SAP Hybris provides software solutions for the management of product information and catalogue data, as well as for downstream E-Commerce, E-Procurement and Database Publishing applications.


  • Gold Member TYPO3 Association

    Gold Member TYPO3 Association

    We are an official Gold member of the TYPO3 Association, a non-profit organisation advocating long-term promotion and support for TYPO3 core development since 2004. In recent years, we have already carried out many successful TYPO3-based projects, and, as a Gold member, we make our own contribution to the further development and security of the Open Source Content Management System.

  • Trusted Shops – Qualified Experts

    Trusted Shops – Qualified Experts

    Trusted Shops is the leading quality seal for online shops in Europe. More than 10,000 shop owners in the EU and Switzerland – including zalando, Obi and bonprix – have had their shops certified, thereby guaranteeing their customers a secure shopping experience. The combination of certification, quality seal, buyer protection and customer evaluation efficiently assists online merchants with their digital brand management throughout the entire customer journey. Trusted Shops allows the brand essence, particularly online, to quickly and easily be considered trustworthy, which has proven to result in better conversion and customer loyalty.




  • Magento - Solution partner

    Magento - Solution partner

    Magento is a professional open source e-commerce solution with extensive features, giving you flexibility and full control over the appearance, content and functionality of your online shop.


  • Shopware


    Shopware is a powerful and flexible E-Commerce software. Innovation, advanced technologies and comprehensive services make Shopware one of the most promising E-Commerce solutions on the market.


  • EVALANCHE Gold Partner

    EVALANCHE Gold Partner

    EVALANCHE is used internationally by more than 3,000 companies and considerably more than 300 hotels, tourism regions and more than 250 top agencies. As a gold partner we have in-depth user knowledge of this premium e-mail marketing automation software. EVALANCHE is the world’s first e-mail marketing solution to be awarded the certificate of TÜV South Product Service and is made in Germany.



  • FanActivator™ Certified Agency

    FanActivator™ Certified Agency

    hmmh is a partner of the Facelift FanActivator™ Certified Agency programme. Apart from developing our own Facebook apps, we use the FanActivator™ to formulate personalised concepts and solutions to consistently boost our customers’ success on Facebook. In addition to the partnership, hmmh also has its own Facelift licence.


  • Certified etracker Gold Partner

    Certified etracker Gold Partner

    As a Certified etracker Gold Partner, we have in-depth user knowledge of the etracker solutions. With targeted analyses, we provide our customers with optimum recommendations, or implement these for them. etracker GmbH is a leading provider of professional web-controlling products and services.


  • Adobe - Solution partner

    Adobe - Solution partner

    Adobe Systems Incorporated offers solutions for business, creative and mobile applications which revolutionise the way we handle ideas and information. Adobe’s customers include companies and organisations, knowledge specialists, creative professionals, OEM partners and developers from all over the world.


  • epoq - Solution partner

    epoq - Solution partner

    epoq internet services GmbH is a market leader in intelligent, cloud-based Cross-Channel Services. With its own Advanced E-Services, epoq helps commercial enterprises and brand manufacturers personalise their e-commerce at the critical interaction points. This not only increases sales per visitor, but also significantly improves the purchase experience for end consumers. epoq’s customers include numerous companies, such as Marc O‘Polo, Planet Sports, Ex Libris, and notebooksbilliger.de.


  • Microsoft


    Microsoft is one of the world’s leading manufacturers of standard software, services and solutions, offering global IT-Consulting and support services to help customers and partner companies plan, operate and optimise their IT infrastructure – with hmmh in the Mobile Solutions division – based on Microsoft products.

  • TecAlliance


    Since its launch over two decades ago, TecAlliance has formed a strong alliance with leading companies in the international spare parts industry. For the international automotive supply industry they standardise the multi-vendor spare parts data that spare parts dealers and workshops need for the professional and proper repair and maintenance of vehicles. With data, processes and integrated services, TecAlliance does every bit every day to network the digital aftermarket and to make it even more transparent.


  • Enterprise Partner CONTENTSERV & CONTENTSERV Vision

    Enterprise Partner CONTENTSERV & CONTENTSERV Vision

    Companies all over the world work with CONTENTSERV's Software Solutions in order to achieve the highest performance possible in Product Communication and Customer Experience. As Enterprise Partner we use the integrative, end-to-end software solution, with which CONTENTSERV customers can manage and simplify their product communication and marketing processes.



  • SAP


    SAP is the worldwide leading provider of enterprise software to manage business operations and customer relations. At the same time it is the world's third largest independent software manufacturer with offices in more than 50 countries.




    Oetker Daten- und Informationsverarbeitung KG is a wholly owned subsidiary of Dr. August Oetker KG and thus a company of the Oetker Group. In two modern data centers operated exclusively in Germany, sensitive data is protected under German law on a highly available, secure and scalable infrastructure. As an IT hosting service company, OEDIV develops IT solutions with maximum availability, high-quality performance and optimum data security for its customers. As a trusted advisor, it always focuses on providing comprehensive advice and support for customer systems.


Recognised and certified

  • Certificate Affilinet
  • Certificate bing Ads Accredited Professional
  • Certificate Deutschland Stipendium
  • Certificate etracker Expert
  • Certificate Google Conversion Professionals
  • Certificate Google Adwords
  • Certificate IREB
  • Certificate ITIL
  • Certificate PRINCE2
  • Certificate Scrum CSM
  • Certificate Scrum CSPO
  • Certificate hybris
  • Certificate Shopware Certified Partner
  • Certificate Shopware Certified Template Engineer
  • Certificate Shopware Certified Developer
  • Certificate Shopware Certified Developer Advanced
  • TYPO3 Integrator
  • Certificate Magento Certified Developer
  • Certificate Qualitätsbeauftragter
  • Certificate iSAQB
  • Challenge Award 2013
  • INTERNET WORLD Business Shop-Award 2014
  • retail technology awards Europe 2014
  • Award Jahrbuch der Werbung
  • Corporate Media Award
  • Fox Awards 2015

consult · create · care