Digital excellence for your online business
E-commerce agency Berlin
As an experienced e-commerce agency in Berlin, we realize tailor-made online stores, innovative platforms and scalable digital solutions for B2B, B2C and D2C - from planning and strategy to design and development. With over 20 years of experience, certified developers and designers, we help brands to sustainably strengthen their digital business.
Contact us nowWhy an e-commerce agency from Berlin?
Berlin is considered one of Europe's leading tech hotspots and attracts companies, start-ups and talent from all over the world. The capital combines creativity, innovative strength and a dynamic ecosystem for digital business models. It is precisely in this environment that our e-commerce agency Berlin is at home. From here, we develop solutions that combine technological excellence with practical implementation. With modern technologies, agile methods and a strong local network, we work closely with our clients. This results in digital strategies and platforms that ensure sustainable success not only in Berlin, but also far beyond.
Our services as an e-commerce agency Berlin
B2B e-commerce webshops & marketplaces
Open up new digital sales channels in B2B and optimize internal processes. From automated offers and approval processes to ERP integrations and OCI punch-outs - as an experienced e-commerce agency in Berlin, we develop customized solutions for complex requirements. The more demanding your project, the better off you are with ACID21.
D2C & B2C e-commerce
webshops
Offer your customers a shopping experience that inspires them and makes them loyal to your brand in the long term. As an e-commerce agency in Berlin, we develop high-performance D2C and B2C webshops that convert optimally and make your internal processes more efficient through intelligent system integration. With AI-supported processes, we reduce costs and create the basis for satisfied customers - reliably, on time and on budget.
Transactional platforms & apps
As a Berlin-based e-commerce agency, we support you in successfully digitizing complex transaction processes and implementing innovative digital products. Whether social commerce platform, app-based booking solution or B2B e-learning and support portal - in over 20 years, we have implemented almost every challenge and transformed them into high-performance platforms.
Individual product configurators
Stand out from the competition, tap into new target groups and take the pressure off your sales team with intelligent online product configurators. Whether AI-supported, in 2D or 3D, integrated into your web store or as a standalone solution - we support you from conception to live operation and ensure that your solution perfectly matches your requirements.
References & success stories from our Berlin e-commerce agency

STASH – Quick Commerce Plattform
"Flink für die Schweiz": Holistic tech stack for the Swiss quick-commerce provider. Development of the entire e-commerce platform with shopping app, pick/inventory app and delivery app. API-first architecture for maximum flexibility and scalability.
from order to delivery
in the App Store
Facts & Figures of ACID21
Behind every number is a story - of bold ideas, strong partnerships and successful digital transformations. Our figures show how much experience, expertise and passion we put into every digital e-commerce project.
23 years
E-commerce expertise in D2C, B2C and B2B e-commerce solutions with Shopware
1,000 projects
From web stores and product configurators to transactional commerce platforms including apps.
25 experts
Motivated professionals in the field of UX/UI
2 locations
Locations in Berlin & Heidelberg
Certified development team in Berlin
At our e-commerce agency in Berlin, we rely on a team of certified experts and developers. They combine in-depth specialist knowledge with many years of project experience and develop customized solutions that meet the highest quality standards and are perfectly tailored to your requirements.
Step by step to digital success
- Initial meeting (15-30 min.)
- Follow-up meeting to coordinate requirements (2 hours)
- Recommend system architecture & ideal tech stack (1-2 days)
- Offer & project plan (2-3 days)
- Problem & product definition
- Market & peer research
- Ideation & design thinking
- User research
- Business model canvas
- Feature hypothesis mapping
- First tech assessment
- Product Mapping
- Customer Journeys & Flows
- Interaction design
- (Rapid) Prototyping
- User research & testing
- Qualitative & quantitative validation
- Landing page tests
- Business validation
- Technical architecture
- Tech stack & tooling selection
- Backlog estimation
- Product security design
- Deployment & testing plan
- License management
- DevOps strategy
- Agile development
- SCRUM management
- Environments set-up
- Manual & automated testing
- Analytics & BI implementation
- Technical documentation
- Server Monitoring & SLA
- Performance Optimization
- Feature Enhancements
- Conversion Tracking & Optimization
- Growth Hacking (SEO, SEA, & Social)






Everything you need to know about our e-commerce agency in Berlin
As a Berlin-based e-commerce agency, ACID21 covers the entire spectrum of digital services. This includes strategic consulting, UI/UX design, web and app development and performance marketing. Our particular focus is on the implementation of customized e-commerce solutions, complex transaction platforms and individual software applications that are precisely tailored to the requirements of our customers.
With over 20 years of experience and more than 1,000 successfully implemented projects, ACID21 is an established e-commerce agency. Our team of 25 interdisciplinary digital experts develops innovative solutions that are precisely tailored to the individual requirements of our clients. Thanks to our location in Berlin, we are always personally available to companies in the capital - for direct communication and close cooperation at eye level.
ACID21 is a cross-industry e-commerce agency and has already successfully implemented projects for companies from a wide range of sectors - including e-commerce, healthcare and the automotive industry. Thanks to our flexible approach, we develop solutions that are individually tailored to the requirements of each industry and enable sustainable digital success.
Yes - in addition to tailor-made e-commerce solutions, ACID21 also realizes individual software and app development. As a full-service agency from Berlin, we accompany the entire process: from the initial idea, conception and UX/UI design to development, implementation and long-term maintenance. We develop native apps for iOS and Android as well as complex software solutions that are perfectly tailored to our customers' requirements.
The first step is very simple: you can reach us at any time via the contact form on our website or make an appointment directly with our Managing Director Jan Zemma. In a personal meeting - also at our offices in Berlin - we will discuss your goals and develop the right strategy together to successfully implement your digital vision.
Let's realize your idea together!
ACID21 is your Berlin e-commerce agency for digital excellence - from web development and UI/UX to innovative e-commerce solutions.
















