EnergieSparModus24: Website and Customer Portal Increase Inquiries by 300%
How we built both website and customer portal for ESM24, an energy service provider from Leverkusen – a complete package that builds trust, digitalises processes and turns visitors directly into customers.
Duration
3 Months
Core Technology
Website + Customer Portal
Top Result
100 / 100
Live website preview
The final experience in motion instead of a static screenshot.

Performance and tracking view
Measurability and portal logic were considered from the start, not added after launch.

Customer portal as a real product layer
The digital experience does not end after first contact, it continues inside the customer portal.
The Challenge: Missing Online Presence Slows Growth.
EnergieSparModus24 is an ambitious energy service provider in a growing market. But the company faced a key problem: there was neither a professional public web presence nor a digital area where existing customers could be served and processes could be bundled properly.
Potential new customers found no trust-building digital presence. At the same time, existing customers lacked a portal for documents, service requests and recurring interactions. This exact gap between acquisition and customer service was slowing down growth.
- No professional web presence in place
- No visibility in Google searches
- No digital portal for existing customers
- Service processes were not handled centrally online
""We are absolutely thrilled with the collaboration. Our website is not only a real visual highlight, but also technically flawless, fast, clean and thought through down to the smallest detail. Communication was always friendly, transparent and incredibly professional. Change requests were implemented immediately and we felt very well taken care of throughout the entire project. A huge thank you to the team – absolute recommendation."
Industry & Context
Industry
Energy Services
Market
B2C & B2B
Region
Germany
Project Type
Website + Customer Portal
Away from Standard Design, Towards Digital Identity.
Three strategic levers that turned a simple idea into a connected system of website, customer portal and measurable service quality.
UX Strategy: The Energy Customer Journey
We designed not only the public website journey, but also the post-contact customer journey. The result was a setup of trust-building website and functional customer portal that connects information, processes and self-service.
Tech Stack: Speed as a Ranking Factor
For the public-facing website we chose a high-performance lean frontend stack. In parallel, we built a customer portal that digitises internal logins, document access and recurring service processes.
Portal Logic: More Service After the Click
The customer portal turns a lead website into a real digital product. Existing customers can retrieve information, trigger processes and work with ESM24 more efficiently – without media breaks.
Visual proof
Website, portal access and clear information hierarchy work together as one system.
SEO
100/100

Commission overview in the customer portal
Portal users get a transparent overview of their commissions at a glance – clearly structured and accessible at any time.

Portal overview of supply points and processes
Instead of fragmented information, customer data, supply points and service processes are centrally managed in one portal.
Before
- ✕ No website
- ✕ No Google ranking
- ✕ No customer portal
- ✕ No digital structure after initial contact
After
- High-performance website (100/100)
- Top visibility on Google
- Digital customer portal for existing customers
- Strong brand plus structured service process
Not just a website – also a complete customer portal.
Alongside the public website, we developed an interactive customer portal – a dedicated login area that delivers genuine digital value and automates internal processes.

Analytics Dashboard
Real-time overview for management

Two products. One collaboration.
Most agencies build a website – and that's it. We delivered both for ESM24: a professional public web presence and an internal customer portal that digitalises real operational processes and builds long-term customer loyalty.
Secure Login & Authentication
Customers receive individual access with secure authentication – protected, personalised and accessible via browser at any time.
Document & Contract Management
All contracts, invoices and relevant documents digitally organised – accessible without phone calls or email follow-ups.
Analytics Dashboard for ESM24
The internal dashboard gives management a clear overview of inquiries, activity and performance – in real time.
Self-Service for Existing Customers
Customers can independently submit requests, report changes and track their status – no waiting, no phone queues.
100 %
Digitalised
All customer processes fully mapped digitally
–80 %
Less effort
Automated document management and inquiry handling
24/7
Available
Customers use the portal anytime and anywhere
Why the Portal Made the Difference.
Enterprise-Ready
Portal as a Requirement
Several larger customers expected a structured, secure portal access before collaboration.
New Customer Segments
More B2B Potential
With website plus portal, ESM24 became more attractive to demanding business clients who expect digital workflows and clear access paths.
Professional Process
From Inquiry to Service
Documents, status and communication now run in a more digital and traceable way. That strengthens the professional impression in every project phase.
Competitive Advantage
More Than a Website
While many competitors only have a web presence, ESM24 combines public branding and an operational customer portal in one system.
"The project is not a closed chapter for us, but the starting point for continuous optimisation (Kaizen). Today, website and customer portal form the digital foundation on which ESM24 can keep growing."
— Kaizen Webworks

