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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.

consult • create • care

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.

The picture shows three key figures of hmmh. 6 locations: Bremen, Hamburg, Berlin, Munich, Trivandrum and Wroclaw. Employees: More than 340 and 26 million euros in sales in fiscal year 2021/2022.

The Management Board

Stefan Messerknecht
Managing Partner


Björn Portillo
Managing Partner


Gerd Güldenast
Managing Partner


Anemone Strzelczyk
Management Board


Marcus Person
Managing Director


Bastian Diedrich
Managing Director


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 Gold Partner

SAP Recognized Expertise for SAP Commerce

SAP stands for Systems, Applications, and Products in Data Processing. Originally known for leadership in enterprise resource planning (ERP) software, SAP has evolved to become a market leader in end-to-end enterprise application software, database, analytics, intelligent technologies, and experience management. A top cloud company with 200 million users worldwide.


Gold Member TYPO3 Association Logo

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 Logo

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.


Shopware Enterprise Partner Logo

Shopware Enterprise Partner

Shopware is a provider of flexible and powerful e-commerce software. Innovative capacity, new technologies and comprehensive services make Shopware one of the most forward-looking solutions on the market.

EVALANCHE Gold Partner Logo

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.


Userlike Logo


Userlike is the German live chat software for web and messaging support. It offers customization options to tailor the design and features of the chat to your brand and needs. As an additional contact channel, Userlike facilitates your potential and existing customers to reach you directly. To increase your sales quota and build a long-term relationship with your customers. Help your customers when it matters - where it matters.

Microsoft Logo


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 Logo


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.

Adobe - Solution Partner Logo

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.




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.


Tealium Logo


Tealium connects customer data – spanning web, mobile, offline, and IoT devices — so brands can connect with their customers. Tealium’s turnkey integration ecosystem supports various client-side and server-side vendors such as technologies, empowering brands to create a unified, real-time customer data infrastructure. The Tealium Customer Data Hub encompasses tag management, an API hub, a customer data platform with machine learning, and data management solutions that make customer data more valuable, actionable, and secure.


Emarsys Logo


Emarsys empowers digital marketing leaders and business owners with the only omnichannel customer engagement platform built to accelerate business outcomes. By rapidly aligning desired business results with proven omnichannel customer engagement strategies — crowdsourced from leading brands across your industry — the platform enables clients to accelerate time to value, deliver superior one-on-one experiences and produce measurable results… fast. This industry-specific, outcome-driven approach combined with the customer-centric personalization, actionable AI and a fully integrated customer data platform (CDP) — make Emarsys the platform of choice for more than 2,500 companies around the world.


Retresco Logo


Retresco supports companies in automating text-based business processes through artificial intelligence and significantly increases their operational efficiency. For more than ten years, Retresco's technologies have been setting standards in the automated creation of high-quality texts and in the analysis of speech. Retresco’s solutions are used by well-known clients in the E-Commerce, Media and Finance industries.


Salesforce Logo


Salesforce brings companies and customers together. Salesforce is a CRM solution for managing customer relationships. All departments, including marketing, sales, customer service as well as online and brick-and-mortar commerce work on a common CRM platform. This way, everyone has the same view of their customers and can ensure the perfect customer experience.

Onedot Logo


Onedot is the first intelligent platform for the procurement, preparation and distribution of product data for trade and industry. Onedot procures high-quality product data on your behalf from manufacturers, suppliers or content providers. Thanks to Onedot, distributing your product data to the relevant sales channels becomes a piece of cake.


With Profihost you can take your online project to the next level and benefit from over 20 years of experience in full managed hosting. The hosting provider creates the highest performance, availability and security - quality and data protection 'Made in Germany'. Profihost offers innovative cloud-based server systems and a variety of high-quality services. So you can build your success on worry-free hosting.

Contentserv Logo

CONTENTSERV & CONTENTSERV Vision Enterprise Partner

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.


priint Group Logo

priint Group

The priint:suite automates the processes surrounding the digital transformation of the print channel. This creates a connection between the digital and the analogue almost effortlessly. Plug-ins for Adobe InDesign and Illustrator eliminate mundane tasks and enable easy team collaboration. The result is an acceleration of production with increased personalisation and a coherent message across all platforms.

[Translate to Englisch:] Logo vom maxcluster


maxcluster designs and operates scalable, fail-safe and high-performance managed web clusters for online shops and e-commerce applications. They support remote management, benchmarks, optimisations, security updates and security checks. Through a sophisticated cluster architecture and the use of Varnish, Redis, Solr, Elasticsearch and Sphinx, maxcluster achieves optimal loading times for online shops.

[Translate to Englisch:] Logo Akeneo


Akeneo provides a solution to place product stories wherever a premium product experience is needed. As a Software-as-a-Service (SaaS), Akeneo enables clients of all sizes to create a seamless customer journey and to be consistent and compelling across all sales channels. In an omnichannel strategy, Akeneo covers the areas of e-commerce, mobile and social commerce as well as print and point of sale, among others.

Logo Contentful


Contentful is the pioneer and market leader in composable content platforms. The intelligent solution enables both technical and non-technical users to easily create, manage, publish and extend different content experiences for any digital channel - all with speed and scalability within a comprehensive and unified content system.


With Storyblok, content management gains a flexible and innovative platform that allows both developers and content managers to effortlessly create and maintain interactive and customisable content. This solution supports a variety of digital channels, enables quick adaptation to market changes, and efficiently scales with the growing demands of businesses. Storyblok seamlessly integrates into existing systems, fostering creative freedom and technical excellence.

Recognised and certified

  • bing Ads Accredited Professional
  • IREB
  • ITIL
  • Zertifikat PRINCE2
  • Scrum CSM
  • Scrum CSPO
  • Hybris
  • Shopware Certified Partner
  • Shopware Certified Template Engineer
  • Shopware Certified Developer
  • Zertifikat Shopware Certified Developer Advanced
  • TYPO3-Integrator
  • Magento Certified Developer
  • Quality Manager
  • iSAQB
  • Deutschland Stipendium
  • Emarsys Certified Partner

consult · create · care

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