Constantinople
- Company typePrivate
- Founded2021
- HeadquartersHaymarket, Australia
- Headcount101–250
- GTM typeB2B
- OfferingSoftware
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).
Constantinople firmographics
Firmographics- 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
Constantinople industry classification
Industry- 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
Where Constantinople is headquartered
LocationHeadquarters
- HQ city
- Haymarket
- HQ country
- Australia
- HQ region
- Oceania
Offices2 records
Markets served
Constantinople business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- 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.
- Transaction and Processing Fees: Revenue derived from payment processing, card issuing, and transaction handling for banks and fintechs operating on the platform.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Multi-year contract | Enterprise SaaS platform pricing |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels5 records
Constantinople product offering
Product offeringCore 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
Companies that use Constantinople
Customer profileNamed customers4 records
Segments4 records
Ideal customer profiles4 records
Constantinople technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration7 records
AI capability11 records
Feature6 records
Constantinople partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core, flagship and minor.
- PaymentologycorePaymentology 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.
- PaymentologycoreConstantinople 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 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 BankflagshipGreat 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.
- McKinseyminorTransformation partner for MoveBank migration, working alongside Constantinople, KPMG, AWS, and Escient to align technology, operations, and change management.
- KPMGminorTransformation partner for MoveBank migration, providing consulting services alongside Constantinople and other partners.
- Amazon Web Services (AWS)coreAWS 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
Constantinople competitors and assessment
Company assessmentDirect 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
Constantinople social profiles
Digital presenceConstantinople compliance and trust
Trust signalCompliance5 records
Constantinople financial estimates
Financial estimateRevenue estimate
Valuation estimate
Constantinople leadership team
Management profileNumber of profiles
Profiles5 records
Constantinople funding detail
Funding detailFunding overview
Funding rounds3 records
Investors4 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Constantinople M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Constantinople
What does Constantinople do?
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.
Is Constantinople a public or private company?
Constantinople is a private company. It is classified as venture growth investor backed and is currently operating.
When was Constantinople founded?
Constantinople was founded in 2021. It employs 101 to 250 people.
Where is Constantinople based?
Constantinople is headquartered in Haymarket, Australia, in the Oceania region.
How does Constantinople make money?
Two revenue lines are on record. SaaS Platform Subscription is the primary driver. The others are transaction and Processing Fees.
Who are Constantinople's main competitors?
Direct peers on record are Thought Machine, 10x Banking, Mambu and Backbase. Broad incumbents are Temenos, Marqeta, Galileo Financial Technologies and Thought Machine (Vault), Mambu, and 10x are the closest direct peers; broader incumbents like FIS. Emerging players are Plaid and Weavr (formerly Currencycloud/BlackLine embedded).
Does Constantinople have an API?
Yes. Constantinople exposes a headless RESTful API layer with OAuth 2.0 authentication, webhook notifications, and multiple SDKs including React Native. The API covers the full banking surface: onboarding, applications, users, entities, accounts, transactions, payments, merchant acquiring, cards, lending, term deposits, invoicing, bank feeds, statements, open banking, fees and rewards, and products. Developer documentation is available at the /resources/documentation endpoint. Developer documentation is at www.cxnpl.com/resources/documentation.
What industry is Constantinople in?
Constantinople's product category is Core Banking / Banking-as-a-Service Platform. Its primary akta.pro industry code is FSAGALAK, Risk, Compliance & Controls for Embedded Finance (KYB/KYC/AML, Fraud, Disputes), with a secondary code of HDAEAHAG, iBPMS (Intelligent BPM Suites) & Process Automation Suites. Its NAICS code is 54151 and its SIC code is 7373.