Top Fintech Software Development Companies in 2026: A Verified Shortlist

How we built this list

This list covers companies that build fintech software for clients: payments, wallets, lending, banking apps and trading platforms. We opened each company's fintech pages in October 2026. In finance, compliance wording is easy to blur, so we report it as written: a vendor that says its process follows PCI DSS is not the same as a vendor that holds an attestation, and most products should keep card data out of scope entirely through a tokenising processor. The criteria:

• Facts come only from the company's own website, opened in October 2026. If a page did not state a fact (a founding year, a headquarters), we left it out rather than filling it from directories or memory.
• Each company had to show at least one named, public project or client in this area. Logo walls without a described project did not count.
• No scores and no ranking. Companies are grouped by type, and the "best for" line reflects what each one publicly shows, not a private judgement of quality.
• Prices are listed only where the company publishes them. Most do not publish prices.
• Innovation Insight is held to the same rules: only work from our own published case studies, and only the prices on our pricing page.

Comparison table

Large and enterprise-scale

Thoughtworks

Thoughtworks' financial services work covers bank modernisation, real-time payments, data mesh and delivery practice change for banks, payment providers and wealth managers. Named clients include TBC Bank, for a digital transformation, and Saxo Bank, for a data mesh. It claims no specific certifications on these pages. Best for: banks that need to change how they build software, not only add developers.

Systems Limited

Systems Limited has its head office in Lahore and focuses on Temenos core banking modernisation, digital banking and cloud, citing 1,200+ banking clients. Named projects include Temenos core banking on AWS for Bank ABC's ila Bank and core modernisation for Bank Syariah Indonesia. It is more an implementation partner than a startup builder. Best for: banks in the Middle East and Asia running Temenos.

Fintech specialists

DashDevs

DashDevs lists offices in London, Wilmington, Budapest, Warsaw and Lisbon and builds digital banking, payments, lending, card issuing and open banking products, along with its own Fintech Core layer (ledger, KYC and AML tooling). Named work includes Chip, a UK savings and investment app it has supported for more than three years, and Tarabut's open banking gateway. Best for: startups launching a neobank, wallet or open banking product.

10Clouds

10Clouds lists a Warsaw address and works on payments and wallets, lending and underwriting, KYC and identity, and AI for financial operations. Named projects include Omise, a payments gateway, Trust Stamp, an identity product, and a conversational account-opening proof of concept for BNP Paribas Bank Polska. Best for: banks and fintechs adding AI to onboarding, credit or back-office work.

Softjourn

Softjourn was founded in 2001, is headquartered in Fremont, California, and has offices in Poland, Ukraine and Brazil. It specialises in payments: prepaid cards, gateways, money transfer, buy now pay later and push provisioning. Its named case study for PEX covers security hardening and PCI compliance work; Viamericas and CyberSource also appear as clients. Best for: card issuing, prepaid and remittance companies.

Netguru

Netguru builds mobile and web banking apps and open banking products and offers staff augmentation. Named fintech work includes a rebuild of the UBS mobile banking app and staff augmentation for FairMoney. Its FAQ says its processes follow GDPR, PCI DSS and ISO/IEC 27001, which describes process rather than a certificate. Best for: banks that need product design and native mobile apps.

Miquido

Miquido is a Kraków product studio whose detailed fintech case is an AI credit scoring engine for Nextbank. Other financial brands appear on its site as logos without a described project. Best for: lenders that want machine-learning credit scoring alongside a polished consumer app.

Offshore and nearshore teams

Elinext

Elinext is based in Warsaw, founded in 1997, and builds payments, lending, trading and insurtech software. Named finance projects include ERP and payment processing for Desjardins and a financial app for BDO Denmark. It is the rare vendor that publishes prices: discovery from $3,900 and monthly developer rates by country and role. Best for: buyers who want to compare published rates across delivery countries.

Vention

Vention lists its address in New York and staffs dedicated teams for trading platforms, wallets, payment gateways and open banking, starting teams within two weeks by its own account. Named fintech work includes the Forex.com apps for StoneX, plus DealCloud and Barchart. Best for: US fintechs scaling a trading or investment product team quickly.

Innovation Insight

Innovation Insight was founded in 2019, is headquartered in Lahore with an engineering office in Sialkot, and has 50+ engineers, designers and project managers. We have not built a bank, a lending platform or a licensed payments product, and we do not hold a PCI DSS attestation. Our payments work sits inside other products: for Paint Nite we rebuilt checkout as a six-stage pipeline with idempotent payments and separate Stripe accounts for the US and Canada; TamTracker pays agency partners through Stripe Connect; Zeuss uses Spreedly for PCI-compliant tokenisation. Published prices: a fintech MVP at $40k to $80k and a fintech platform at $80k to $180k. Best for: startups whose product moves money through Stripe or another processor. See fintech app development.

Who we checked and left out

Endava and Intellias have strong payments and banking pages, but every case study we opened was anonymised, so they did not meet the named-project rule. EPAM, Globant, Itexus and SoftTeco blocked our requests; Django Stars timed out; Luxoft now redirects to DXC. None of this is a judgement on their work.

How to choose a fintech software development company

1. Ask how the design keeps card data out of your PCI scope: hosted fields, tokenisation through Stripe, Adyen or Spreedly, and which self-assessment questionnaire you would file.
2. Ask about ledgers. Money movement needs double-entry records, idempotent payment calls and reconciliation against the processor, not a balance column.
3. Ask which banking-as-a-service, KYC and open banking providers they have integrated, and what broke.
4. Check who owns the regulatory relationship. The vendor builds software; your licensed partner bank or your own licence carries the obligations.
5. Ask for a security testing plan: penetration tests before launch and after major changes, and who fixes findings.
6. Ask for two references from projects like yours, and call them. A case study on a website is the vendor's version of events.
7. Interview the engineers who will actually do the work, not only the sales lead or a solutions architect who leaves after the kickoff.
8. Get the rate card by seniority and the planned team mix in writing. A low blended rate often hides a junior-heavy team.

Further reading: fintech app development cost, Stripe Connect for marketplaces, Stripe webhooks and idempotency and our pages on PCI DSS compliant development and payment gateway integration. The fintech industry hub lists the rest.

Sources

• PCI Security Standards Council, document library: https://www.pcisecuritystandards.org/document_library/
• Thoughtworks, financial services: https://www.thoughtworks.com/de/financial-services (checked October 2026)
• Systems Limited, banking and financial services: https://www.systemsltd.com/industries/banking-financial-services (checked October 2026)
• DashDevs, Chip case study: https://dashdevs.com/case-studies/chip-saving-and-investment-app/ (checked October 2026)
• Elinext, financial software: https://www.elinext.com/industries/financial/ (checked October 2026)