Digital signatures for critical infrastructures
KRITIS-compliant & EU-hosted
Maximize close rates with a seamless, brand-loyal signature experience directly at the point of sale.
For municipal utilities, energy suppliers and grid operators.

100%
EU-hosted
<2 min.
Closing time
eIDAS
Legally compliant
Challenges in the industry
You know these problems - we solve them
The energy sector faces unique challenges in the digitalization of contract and signature processes.
High cost-to-serve
Paper-based processes for private customer contracts cause enormous costs for printing, mailing and post-processing.
✓ Up to 80% cost reduction through digital contracts
- Price risks in retail
Slow signature processes in energy trading lead to price fluctuations and missed market opportunities.
✓ Legally binding fixation within seconds
KRITIS requirements
US cloud providers do not meet the strict security and data sovereignty requirements for critical infrastructures.
✓ 100% EU-hosted platform without US access
High dropout rate
Complicated external signature tools lead to contract terminations and frustrated customers at the point of sale.
✓ Seamless integration without media discontinuity
Time lost due to mail
Manual printing, scanning and sending costs valuable time and delays the conclusion of contracts by days.
✓ Real-time completion in under 30 seconds
Unprofessional image
Paperwork and inconsistent processes damage the brand image with business and private customers.
✓ Brand loyal white label experience
Our solutions
Products for all signature requirements
From B2C mass market to B2B energy trading - the right solution for every application.
For B2C mass market
sproof Fastlane
The fastest solution for SEPA mandates and supply contracts.
✓ SEPA mandates in real time
✓ Paperless contract conclusions
✓ White-label branding
✓ Mobile-first experience
For internal and external signature processes
sproof Sign & API
Legally binding signatures for commercial contracts and procurement. Seamless integration into existing systems via API.
✓ Qualified electronic signatures
✓ API integration in ERP/CRM
✓ Multi-party signature processes
✓ Compliance-compliant archiving
Seamless API integration
Integrate sproof directly into your existing systems - ERP, CRM, DMS or your own customer platform. Extensive documentation and SDKs available.
API DOCUMENTATIONDeveloped for critical infrastructures
Why sproof?
Whether customer service, energy trading or IT - sproof addresses the specific requirements of each department.
KRITIS-compliant
Meets the strictest security requirements for critical infrastructures in accordance with BSI guidelines.
100% EU-hosted
Complete data sovereignty without US cloud dependencies. Hosting in ISO 27001 certified European data centers.
eIDAS-compliant
Qualified electronic signatures in accordance with the EU regulation - legally secure and recognized in court.
Real-time trades
Sign legally binding contracts in under 30 seconds - directly at the point of sale or remotely.
White label solution
Fully customizable to your corporate design for a seamless, brand-loyal customer experience.
Enterprise API
Seamless integration into existing ERP, CRM and DMS systems via REST API and SDKs.
Solutions for your most important decisions
Enterprise features that meet the highest security and compliance requirements.
Optimize private customer business
Customer service
Drastically reduce your cost-to-serve in the private customer business by concluding SEPA mandates and supply contracts completely paperless and in real time.
✓ Up to 80% less process costs✓ Higher customer satisfaction✓ No media breaks at the POSExploiting market opportunities
Energy trading
Fix volumes and prices in energy trading within seconds and in a legally binding manner, without internal compliance or missing signatures becoming a bottleneck for your business.
✓ Conclusions in a matter of seconds✓ No risk due to delays✓ Full compliance conformityOptimize private customer business
IT & Security
Consolidate your signature and identification processes on a single, European platform that both increases efficiency in the mass market and meets the highest security standards for critical infrastructures.
✓ 100% EU data sovereignty✓ KRITIS-compliant architecture✓ Single-platform strategy
Successful digitalization at leading companies
Trust the best
Digital signatures for paperless SEPA direct debit mandates at Salzburg's energy and infrastructure service provider: More digital sovereignty and more than 250,000 fewer sheets of paper thanks to digital signatures from sproof
Salzburg AG: Digital sovereignty and more than 250,000 fewer sheets of paper per year by switching to sproof
Case Study
Austria's energy and infrastructure service provider has long been digitizing its signature processes with sproof Sign. Now sproof Fastlane is also being used for SEPA mandates - for a much more efficient and convenient customer experience.
TO THE CASE STUDYReady to digitize your signature processes?
Discover how sproof can make your contract processes in the energy industry more efficient, secure and cost-effective.






