Constantinople

What Constantinople does

Constantinople is a Sydney-headquartered fintech that builds an AI-native, cloud-native banking platform sold as software-as-a-service to licensed banks, neo banks, credit unions and embedded finance providers. The platform unifies product, technology, data, operations and compliance into a single fabric, replacing the patchwork of legacy core, ledger and operations systems that banks typically run, with target customers including traditional retail banks modernizing their stack (MoveBank, Great Southern Bank) and software platforms embedding banking into their workflows (MYOB Solo, via Great Southern Bank's ADI license). The company is targeting a global market from Australia, with a regional office in Singapore and stated operations across the Asia-Pacific region.

Under the hood, the platform is built on AWS infrastructure (EKS, Lambda, Amazon Bedrock with Anthropic Claude models, GuardDuty, WAF, Shield) using a microservices, event-driven architecture with a canonical data model and real-time immutable ledger. Five functional modules — Customer Experience, Bank Products, Operations, Risk & Compliance, and Data/Security/Infrastructure — sit beneath the Justinian AI-powered banker console, and five solution verticals (Retail Banking, Business Banking, Embedded Banking, Migration, Greenfield) package the platform for specific go-to-market motions. The platform is certified to ISO 27001, SOC 2 Type II and ASAE 3150, and is aligned to APRA, ASIC and AUSTRAC requirements, with additional PCI-DSS and GDPR posture.

Constantinople makes money through subscription SaaS fees on multi-year enterprise contracts, augmented by transaction and processing fees from payments and card issuing (powered in Australia through the Paymentology partnership). Go-to-market is direct enterprise field sales targeting bank executives and boards, supported by transformation partners (McKinsey, KPMG), cloud (AWS) and strategic co-deployment partners (10x Banking, Paymentology). Founded in 2021 by former Westpac executives Di Challenor and Macgregor Duncan, the company has raised approximately USD 71 million across a record AUD 32 million seed round (May 2023, Square Peg Capital) and a USD 50 million Series A (April 2024, Prosus Ventures).

Name

Constantinople

Legal name

Constantinople Operating Company Pty Ltd

Website

https://cxnpl.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Core Banking / Banking-as-a-Service Platform

NAICS

Computer Systems Design and Related Services (54151), Financial Transactions Processing, Reserve, and Clearinghouse Activities (522320)

SIC

Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Risk, Compliance & Controls for Embedded Finance (KYB/KYC/AML, Fraud, Disputes) (FSAGALAK)

akta.pro secondary industries

iBPMS (Intelligent BPM Suites) & Process Automation Suites (HDAEAHAG), Enterprise AI Governance, Risk & Compliance Platforms (Model Risk, Audit, Policies) (HDAEANAE)

Keywords

• Banking-as-a-service platform
• AI-native core banking
• Cloud-native banking infrastructure
• Embedded banking APIs
• Banking compliance automation

Headquarters

HQ city

Sydney

HQ country

Australia

HQ region

Oceania

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. SaaS Platform Subscription: Software-as-a-service platform providing wholesale banking solutions on a subscription basis. Clients pay a scalable fee to access the platform replacing patchwork of legacy systems. The platform is positioned as dramatically reducing cost-to-income ratio for banks.
2. Transaction and Processing Fees: Revenue derived from payment processing, card issuing, and transaction handling for banks and fintechs operating on the platform.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Constantinople provides an AI-native, cloud-native Banking-as-a-Service SaaS platform that runs the full middle and back office for licensed banks, neo banks, credit unions and embedded finance providers. The platform unifies product, technology, data, operations and compliance into a single fabric, with configurable bank products (accounts, payments, cards, mortgages, loans), AI-powered risk and compliance, a real-time ledger, a canonical data model, headless APIs/SDKs, and the Justinian AI banker workbench. Revenue is generated through subscription fees and transaction/processing fees on multi-year enterprise contracts.

Product overview

Constantinople offers a single, unified AI-native banking platform that serves as the operating system for banks. The platform architecture consists of a core Constantinople Banking Platform that brings together product, technology, data, operations, and compliance into one fabric. The platform is modular, with integrated functional modules including Customer Experience (mobile/web apps, headless APIs, SDKs, AI concierge, digital onboarding), Bank Products (accounts, payments, cards, mortgages, loans), Operations (onboarding, lending, payments, fraud, customer support, collections), Risk & Compliance (fraud prevention, financial crime, regulatory reporting), and Data/Security/Infrastructure (real-time ledger, canonical data model, cloud-native microservices). The Justinian Console serves as the AI-powered banker workbench providing a single pane of glass across all modules. On top of the platform, Constantinople offers five solution verticals: Retail Banking, Business Banking, Embedded Banking, Migration, and Greenfield. The platform runs on AWS infrastructure with Anthropic Claude models via Amazon Bedrock powering AI features.

Differentiator

Problem solved

Functional benefit

Products and services

• Constantinople Banking Platform AI-native, cloud-native Banking-as-a-Service SaaS platform that unifies product, technology, data, operations and compliance for licensed banks, neo banks, credit unions and embedded finance providers; replaces legacy core banking with a real-time ledger, canonical data model, headless APIs/SDKs, AI concierge, AI-powered risk and compliance, and the Justinian banker workbench.
• Retail Banking Solution Vertical solution of the Constantinople Banking Platform for licensed retail banks, delivering configurable retail banking products (everyday accounts, savings, term deposits, payments, cards, mortgages, personal loans), digital onboarding with biometric KYC, AI concierge support and APRA/ASIC/AUSTRAC-ready compliance.
• Business Banking Solution Vertical solution of the Constantinople Banking Platform for licensed banks offering SME business banking, including complex entity onboarding, multi-user access, batch payments, cashflow loans, overdrafts, equipment finance and merchant cash advances, with native Xero/MYOB accounting integration and AI-powered transaction categorisation.
• Embedded Banking Solution Vertical solution of the Constantinople Banking Platform for non-bank software platforms and fintechs that want to embed regulated banking products (accounts, cards, payments, lending) into their own applications via headless APIs and SDKs, with Constantinople handling products, operations and compliance under a partner ADI's licence.
• Migration Solution Migration solution that moves banks off legacy core systems onto the Constantinople platform, covering data extraction, cleansing and mapping to the unified canonical data model, with phased rollouts, staff training and change management.
• Greenfield Solution Solution for launching new banks from scratch on the Constantinople full-stack cloud-native platform, with integrated core banking, digital channels, AI-native features and compliance-ready infrastructure aligned to APRA, ASIC and AUSTRAC standards.

Quantifiable outcome

• Launch full-service banking offerings in less than 7 months
• +5 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability11 records

Feature6 records

Partnerships

Seven partnerships are on record, tiered core, flagship and minor.

• PaymentologycoreTechnology or Integration · 16 April 2026Paymentology partnered with Constantinople for Australian market entry, establishing local processing infrastructure connected to domestic payment rails including the New Payments Platform, EFTPOS, and Bank@Post through partnerships with Cuscal and Constantinople.
• PaymentologycoreTechnology or Integration · 12 November 2025Constantinople selected Paymentology to power its Banking-as-a-Service operations in Australia, marking Paymentology's formal entry into the Australian market. The partnership leverages Paymentology's card issuing and payment processing platform across Mastercard and Visa networks, including Apple Pay and Google Pay integration, to serve community banks and fintechs.
• 10x BankingflagshipStrategic or Co-development Partner · 1 January 2025Strategic partnership awarded 'Partnership of the Year' at FF Awards 2025 for collaborative efforts in modernizing banking technology, supporting rapid deployment of banking solutions enabling clients to launch full-service offerings in less than seven months.
• Great Southern BankflagshipTechnology or Integration · 2 April 2024Great Southern Bank uses Constantinople's comprehensive banking platform supporting both retail and business banking for its new Business Bank launch. The bank serves as the licensed ADI partner for embedded banking clients like MYOB.
• McKinseyminorImplementation/ SI/ Consulting PartnerTransformation partner for MoveBank migration, working alongside Constantinople, KPMG, AWS, and Escient to align technology, operations, and change management.
• KPMGminorImplementation/ SI/ Consulting PartnerTransformation partner for MoveBank migration, providing consulting services alongside Constantinople and other partners.
• Amazon Web Services (AWS)coreTechnology or IntegrationAWS provides the cloud infrastructure for Constantinople's platform, including Amazon EKS, Lambda, Bedrock, GuardDuty, WAF, and Shield. All client implementations (GSB, Tyro, MoveBank, MYOB) run on AWS infrastructure.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Thought Machine: Cloud-native core banking platform (Vault) serving tier-1 and challenger banks globally. Directly competes on full-stack core banking replacement, with overlapping enterprise field sales motion and similar AI-modernization narrative.
• 10x Banking: London-based core banking / Banking-as-a-Service platform for retail and business banking. Most direct competitor, also a strategic partner (joint 'Partnership of the Year' at FF Awards 2025).
• Mambu: Composable SaaS core banking platform used by neo banks, traditional banks, and embedded finance providers. Comparable horizontal SaaS business model and target segments (licensed banks, neo banks, credit unions).
• Backbase: Engagement banking platform providing digital banking software for retail, business, and wealth on top of core systems. Comparable in targeting incumbent bank digital transformation, often paired with core banking modernization.

Broad incumbents

• Temenos: Established, publicly listed provider of core banking, payments, and wealth software to thousands of banks worldwide. Represents the legacy replacement incumbent that Constantinople and similar neo-core vendors are displacing.
• Marqeta: Public card-issuing and modern payments platform. Overlaps with Constantinople's card-issuing and BaaS capabilities (and its partner Paymentology competes in the same space), targeting fintech and embedded finance use cases.
• Galileo Financial Technologies: Socure-owned payment processing and card-issuing platform powering neobanks and fintechs. Comparable on the transaction-processing and card-issuing infrastructure layer embedded finance clients require.
• Thought Machine (Vault), Mambu, and 10x are the closest direct peers; broader incumbents like FIS: Global provider of banking, capital markets, and payments technology including core banking systems. Represents the entrenched legacy vendor base Constantinople is competing to replace in mid-tier and challenger banks.

Emerging players

• Plaid: Open-banking and account connectivity infrastructure used by fintechs and banks. Adjacent in the embedded finance / banking-data layer that Constantinople integrates with (open banking is part of its API surface).
• Weavr (formerly Currencycloud/BlackLine embedded): Embeddable finance-as-a-service infrastructure for SaaS platforms to embed payments, cards, and accounts via APIs. Closely comparable to Constantinople's Embedded Banking solution for non-bank software platforms.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/cxnplio

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds3 records

Investors4 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Constantinople