Berlin’s Leading Web & App Development Agency
At Belsum Digital, we help Berlin-based startups, brands, and businesses transform ideas into digital solutions. We’re more than just a web agency — we’re your long-term partner in digital growth.
Why Berlin Businesses Choose BelSum
Berlin is fast-paced and innovative. We match that energy by building clean, scalable, and smart digital products tailored to your audience and business goals. Whether it’s a responsive website, a powerful mobile app, or a digital marketing strategy — we deliver results.
✅ Top-rated Website Development Agency in Berlin
✅ Experts in both website and mobile app development
✅ Creative, conversion-focused web design agency
✅ Agile team, fast turnaround, and transparent pricing
We don’t just build websites — we build business-ready digital platforms.
#Why BelSum?
Why Berlin Businesses Work With Us
Berlin is fast-paced and innovative. We match that energy by building clean, scalable, and smart digital products tailored to your audience and business goals. Whether it’s a responsive website, a powerful mobile app, or a digital marketing strategy — we deliver results.
Website Design & Development
From eCommerce platforms to custom web applications, we craft pixel-perfect, responsive websites that align with your business goals.
Best for businesses looking to make a strong online impression in Berlin and beyond.
Includes:
WordPress, custom CMS, Shopify, and more
SEO-friendly structure
Mobile App Development
We design & develop high-performance mobile apps and web-based applications for startups and enterprises alike.
We build:
Hybrid & native mobile solutions
eCommerce Website Development
Sell more with an optimized online store. Our ecommerce agency team creates scalable, secure and beautifully designed stores using Shopify, WooCommerce, and custom stacks.
Digital Marketing Solutions
Enhance your visibility with our digital marketing agency services — from SEO and content marketing to web marketing strategy and analytics.
We help your website not just look good — but rank, convert, and grow.
#Designed for Berlin, Trusted Worldwide
Why Choose Belsum Digital?
150+ successful projects across Berlin, Europe, and India
Local market knowledge with global execution standards
Transparent process and ongoing support
We work with everyone from Neukölln-based creatives to Mitte tech startups — building digital solutions that solve real business problems.
#Our Projects
Explore the Projects We’ve Successfully Delivered
What our clients love about
BelSum Digital Agency
#FAQs
Answers to Your Most Common Questions
Do you work with Berlin-based startups?
Absolutely. Startups are our sweet spot. We’ve helped early-stage Berlin companies build MVPs, launch faster, and scale smart.
How long does a typical Berlin web project take?
Most projects take 3–6 weeks depending on scope. We prioritize fast delivery with zero compromise on quality.
Can you help with SEO for the Berlin market?
Yes! We use region-specific SEO strategies to boost your visibility across Berlin and German-speaking regions.
GDPR & Data Privacy Commitment
Your Data, Your Rights — Fully GDPR-Compliant
At BelSum Digital, we prioritize your privacy and data security. As a digital agency working with clients across Europe and globally, we are fully GDPR-compliant — ensuring that your personal and business information is handled with transparency, integrity, and complete respect for your rights under the EU’s General Data Protection Regulation.
Whether we’re building your website, managing marketing campaigns, or developing custom applications, our systems are designed to protect your data at every step. We follow EU data processing guidelines, offer secure cloud hosting, and ensure full data control and access transparency for all our clients.
✅ Hosting options compliant with EU regulations
✅ Transparent data handling policies
✅ Consent-based data collection and marketing tools
You’re in safe hands with BelSum.