Swiss banks and financial institutions work with a mix of dedicated software engineering firms and established banking technology providers. The companies below cover areas such as custom banking applications, core banking modernization, digital channels, payment infrastructure, wealth technology, integrations, cloud migration, and security. The selection focuses on providers with verifiable banking software expertise and a defensible connection to the Swiss market.
1. Itexus
Itexus builds custom fintech and banking software for regulated financial products in Switzerland. It develops mobile and online banking, digital account opening, KYC workflows, lending systems, wallets, and card management. It also covers open banking, fraud monitoring, and integrations with core banking platforms. Legacy modernization, cloud engineering, QA, cybersecurity, and post-launch maintenance are part of the work too.
Swiss financial firms that need a custom engineering team can hand Itexus the whole project. The company has a delivery presence in Europe and broad financial-sector experience. One example is a wealth management platform it built for a Swiss advisory and asset management company.
Key Facts
- Best for: Custom banking and fintech software
- Core services: Banking software development, digital banking, core integrations, lending software, payments, wealth platforms
- Technologies: Java, .NET, TypeScript, Python, cloud and container technologies
- Project scope: Discovery, development, modernization, QA, DevOps, security, maintenance
- Market coverage: Europe and international financial markets
- Financial sector experience: 300+ fintech projects
Contact Information
- Website: itexus.com
- E-mail: moc.suxeti@ofni
- Facebook: www.facebook.com/itexus
- Twitter: x.com/ItexusSoft
- LinkedIn: www.linkedin.com/company/itexus
- Instagram: www.instagram.com/itexus.soft
- Address: 8, The Green, STE road, Dover, DE 19901
2. ti&m
Zurich-based ti&m pairs software engineering with its own digital banking technology. It builds mobile banking, e-banking, customer portals, onboarding, and self-service features. It also delivers advisory tools, integrations, and modernization work.
Baloise Bank, Bank CIC, and VZ Depotbank all run on the ti&m Banking platform. The team can connect it to established core systems: at Baloise, the digital banking front end links to Avaloq.
Key Facts
- Best for: Swiss digital banking platforms and custom engineering
- Core services: Digital banking, software engineering, cloud, consulting, UX
- Specialization: Mobile and e-banking
- Headquarters: Zurich, Switzerland
- Swiss offices: Zurich, Bern, Basel
Contact Information
- Website: www.ti8m.com
- Email: hc.m8it@gnitekram
- Twitter: x.com/ti8m_ag
- LinkedIn: www.linkedin.com/company/ti8m
- Instagram: www.instagram.com/ti8m_ag
- Phone: +41 44 497 75 00
- Address: Buckhauserstrasse 24, 8048 Zurich, Switzerland
3. G+D Netcetera
G+D Netcetera builds financial software for banks, payment service providers, insurers, and other regulated organizations. Headquartered in Zurich, it works on digital banking, payment infrastructure, authentication, digital identity, and custom financial software.
The company can extend an existing banking platform or build a new system from scratch for specific operational or regulatory needs. It delivers the full software project, not just a product license. Banks that need technology built around their own processes should look here.
Key Facts
- Best for: Custom financial software and payment technology
- Core services: Digital banking, payments, authentication, custom software
- Development options: Platform extension and greenfield development
- Headquarters: Zurich, Switzerland
- Financial software experience: More than 30 years
Contact Information
- Website: www.netcetera.com
- Facebook: www.facebook.com/gd.netcetera
- LinkedIn: www.linkedin.com/company/g-d-netcetera
- Instagram: www.instagram.com/gd_netcetera
- Phone: +41 44 297 55 55
- Address: Zypressenstrasse 71, 8004 Zurich, Switzerland
4. Adnovum
Adnovum helps banks and fintech companies with software engineering and digital transformation. It mixes custom components with established technologies, both in customer-facing apps and in internal banking processes.
Typical banking projects include digital platforms, mortgage processes, pricing applications, security, integration, and modernization. Adnovum is headquartered in Zurich and has offices in Bern and Lausanne. That gives banks in different parts of Switzerland a local engineering team.
Key Facts
- Best for: Custom banking engineering and digital transformation
- Core services: Software engineering, platform development, integration, security
- Industries: Banking and fintech
- Headquarters: Zurich, Switzerland
- Swiss offices: Zurich, Bern, Lausanne
Contact Information
- Website: www.adnovum.com
- Email: hc.muvonda@ofni
- Facebook: www.facebook.com/adnovum
- LinkedIn: www.linkedin.com/company/adnovum
- Instagram: www.instagram.com/adnovum
- Phone: +41 44 272 61 11
- Address: Adnovum AG, Badenerstrasse 170, 8004 Zurich (CH)
5. Ergon Informatik
Ergon builds custom software and digital banking solutions from Zurich. For financial firms it develops digital channels, customer portals, mobile apps, and open banking integrations. It also works on security, cloud systems, AI, and modernizing older banking technology.
Ergon also makes Airlock, its own security technology. That helps when authentication, API protection, and secure integration are central to a project. Past financial clients include Bank Vontobel, Raiffeisen, Schwyzer Kantonalbank, and Liechtensteinische Landesbank.
Key Facts
- Best for: Secure digital banking development
- Core services: Custom software, digital banking, mobile apps, open banking, cloud
- Security capabilities: IAM, API security, security by design
- Headquarters: Zurich, Switzerland
- Development: Software engineering carried out in Switzerland
Contact Information
- Website: www.ergon.ch
- Email: hc.nogre@ofni
- Facebook: www.facebook.com/ErgonAG
- LinkedIn: www.linkedin.com/company/ergon-informatik-ag
- Instagram: www.instagram.com/ergoninformatik
- Phone: +41 44 268 89 00
- Address: Merkurstrasse 43, 8032 Zurich, Switzerland
6. ELCA
ELCA works with Swiss banks and financial firms on software development, digitization, automation, analytics, and cloud systems. In financial services it builds digital onboarding, CRM, portals, mobile apps, process automation, and secure data platforms.
ELCA is a good choice when new banking software is one piece of a larger transformation program. It has several offices across Switzerland. Its teams pair local financial-sector knowledge with engineering, cloud, data, security, and integration skills.
Key Facts
- Best for: Banking digitization and enterprise software projects
- Core services: Custom software, mobile apps, portals, analytics, process automation
- Financial capabilities: Digital onboarding, CRM, secure data platforms
- Headquarters: Pully, Switzerland
- Swiss presence: Pully, Bern, Basel, Zurich, Geneva, Rapperswil-Jona
Contact Information
- Website: www.elca.ch
- Email: hc.acle@gnitekram
- LinkedIn: www.linkedin.com/company/elca-informatique-sa-elca-informatik-ag
- Phone: +41 21 613 21 11
- Address: Av. Général-Guisan 70a, 1009 Pully, Switzerland
7. Avaloq
Avaloq builds banking and investment-management technology at its Zurich headquarters. Its platform handles front, middle, and back-office work for banks and wealth managers. Clients can run it on-premise or buy it as SaaS or BPaaS.
The Swiss office is the main hub for clients in Switzerland and Liechtenstein. Avaloq fits private banks and wealth managers that want an established platform. They can configure it around their regional products, operating model, and regulatory rules.
Key Facts
- Best for: Core banking and wealth management technology
- Core services: Banking platform, investment management, SaaS, BPaaS
- Specialization: Banks and wealth managers
- Headquarters: Zurich, Switzerland
- Deployment models: On-premise, SaaS, BPaaS
Contact Information
- Website: www.avaloq.com
- Twitter: x.com/Avaloq
- LinkedIn: www.linkedin.com/company/avaloq
- Phone: +41583161010
- Address: Allmendstrasse 140, 8041 Zurich, Switzerland
8. Temenos
Temenos is a banking technology company based near Geneva. Its products cover core banking, digital banking, payments, wealth management, and financial crime prevention. Banks can adopt single components or deploy the whole integrated banking environment.
Temenos keeps developing its software for cloud and SaaS use. In 2026 it expanded its AWS offering, so banks can now run core banking, digital banking, and payments through Temenos SaaS on AWS. Swiss references include Swissquote and Alpian.
Key Facts
- Best for: Enterprise core and digital banking
- Core services: Core banking, digital banking, payments, wealth management
- Delivery: SaaS, cloud and on-premise options
- Headquarters: Grand-Lancy, Switzerland
- Swiss banking experience: Swissquote and Alpian among published references
Contact Information
- Website: www.temenos.com
- Facebook: www.facebook.com/TemenosGroup
- Twitter: x.com/Temenos
- LinkedIn: www.linkedin.com/company/temenos
- Instagram: www.instagram.com/we_are_temenos
- Phone: +41 22 708 11 50
- Address: Uetlibergstrasse 132, 10th floor, 8045 Zürich, Switzerland
9. Finstar
Finstar builds an integrated Swiss banking platform for payments, financing, investments, digital onboarding, APIs, and digital assets. The technology comes from Hypothekarbank Lenzburg and grew out of real day-to-day banking needs.
Banks can add third-party systems through open interfaces. Finstar offers the platform as infrastructure, platform, software, or business-process services. Finstar AG became an independent company in January 2026 and remains a subsidiary of Hypothekarbank Lenzburg.
Key Facts
- Best for: Swiss core banking and fintech infrastructure
- Core services: Core banking, APIs, digital onboarding, digital asset technology
- Delivery models: IaaS, PaaS, SaaS, BPaaS
- Location: Lenzburg, Switzerland
- Ownership: Subsidiary of Hypothekarbank Lenzburg AG
Contact Information
- Website: www.finstar.ch
- Email: hc.ratsnif@ofni
- LinkedIn: www.linkedin.com/showcase/infofinstar
- Address: Bahnhofstrasse 4, CH-5600 Lenzburg, Switzerland
10. Inventage
Inventage is a Zurich software engineering company with deep banking know-how. It builds custom software, mostly Java-based systems combined with modern web technologies.
Published clients include Julius Baer, VP Bank, Thurgauer Kantonalbank, LGT, and Finnova. Inventage suits banks and wealth managers that want a custom platform or application built for them, not a packaged core banking product.
Key Facts
- Best for: Custom banking software engineering
- Core services: Custom software, web platforms, software project delivery
- Technology focus: Java and modern web technologies
- Domain focus: Banking
- Headquarters: Zurich, Switzerland
Contact Information
- Website: inventage.com
- Email: moc.egatnevni@ofni
- LinkedIn: www.linkedin.com/company/inventage-ag
- Phone: +41 43 343 20 20
- Address: Technoparkstrasse 1, 8005 Zurich, Switzerland
11. CREALOGIX
CREALOGIX is a Swiss financial technology company based in Zurich. Its software centers on digital banking and financial services. It serves financial institutions and banking customers in Switzerland and in international markets.
Banks should consider CREALOGIX for digital customer interaction and banking software. It is a banking specialist, not a general software outsourcing firm. Its long history in Swiss fintech also gives it a local base.
Key Facts
- Best for: Digital banking technology
- Industry focus: Banking and financial services
- Location: Zurich, Switzerland
- Company type: Financial technology and software provider
- International presence: Europe, Asia, and the Middle East
Contact Information
- Website: crealogix.com
- Email: moc.xigolaerc@ofni
- Twitter: x.com/CREALOGIX
- LinkedIn: www.linkedin.com/company/crealogix
- Phone: +41 58 404 80 00
- Address: Maneggstrasse 17, 8041 Zurich, Switzerland
12. ERI
ERI develops, implements, and supports the OLYMPIC Banking System, a combined banking and investment-management platform. It handles accounts, securities, lending, treasury, payments, and portfolio management. It also covers compliance, reporting, CRM, and other banking processes.
ERI has long operated in Switzerland, with offices in Geneva, Zurich, and Lugano. It sells a dedicated banking platform rather than custom development from a blank slate. That suits private banks, wealth managers, and other institutions looking for an established core system.
Key Facts
- Best for: Core banking and investment management systems
- Main product: OLYMPIC Banking System
- Core capabilities: Accounts, securities, lending, payments, treasury, portfolio management
- Swiss presence: Geneva, Zurich, Lugano
- Industry focus: Banks and financial institutions
Contact Information
- Website: www.eri.ch
- Email: hc.ire@ire
- Twitter: x.com/ERIbankingtech
- LinkedIn: www.linkedin.com/company/eri-bancaire
- Address: Leutschenbachstrasse 95, CH - 8050 Zürich
- Phone: +41 44 204 93 00
Conclusion
Banking software development in Switzerland covers several different needs, from fully custom applications to established core banking platforms. Banks planning a new digital product may prioritize custom engineering, API integration, security, and mobile development, while institutions replacing larger parts of their technology stack may need a provider with core banking, payments, wealth management, and managed-service capabilities.
A useful shortlist should therefore start with the project itself. Financial institutions can compare providers based on whether they need custom development or a configurable platform, the systems that must be integrated, Swiss regulatory and data requirements, deployment preferences, and the level of long-term engineering and operational support required.