# Constantinople Operating Company

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/constantinople-operating-company-pty

- Industry: Financial Services
- Headquarters: Sydney, Australia
- Website: www.cxnpl.com/
- Total disclosed funding: $55M
- Latest round: Series A (Apr 1, 2024)
- Investors on record: 4

## About

Based in Australia, Constantinople Operating Company Pty Ltd specializes in providing an integrated banking platform to modernize financial operations through technology and compliance solutions. Constantinople Operating Company Pty Ltd focuses on enhancing banking operations through its innovative platform. Founded in 2022 in Sydney, Australia, the founders, Dianne Challenor and Macgregor Duncan, bring significant experience from previous ventures to drive the company's strategic vision.

Constantinople offers an integrated banking platform that combines product development, technology, data management, operations, and compliance to deliver a comprehensive solution for modern banking. Their core offerings include mobile and web applications, APIs, and AI-powered customer support tools designed to enhance user experiences and streamline banking operations. The platform supports a range of banking services, including accounts, payments, cards, mortgages, and loans, enabling financial institutions to migrate, launch, and scale effectively according to their strategic goals. Constantinople primarily serves retail and business banks, fintech startups, and other financial institutions looking to modernize their operations and improve customer engagement within the highly competitive markets of North America, Europe, and Asia-Pacific. Revenue generation for Constantinople is structured around subscription models and partnerships with financial institutions that leverage their platform. Clients engage in transactions that include a flat fee for access to the comprehensive banking software suite, which encompasses various services such as onboarding, customer support, and risk management. The pricing structure allows banks and fintech companies to replace their legacy systems with Constantinople's scalable solutions, thereby reducing operational costs while improving service delivery. Clients benefit from the efficiency and innovation facilitated by Constantinople's platform, resulting in a mutually beneficial relationship where both the firm and its clients can enhance their market positions and customer satisfaction.

In August 2026, Constantinople Operating Company Pty Ltd raised AUD 62.5 million in venture funding co-led by Square Peg and AirTree Ventures. The company will use the August 2026 funding to continue scaling its banking technology business and support future growth.

## Funding rounds

- Series A, Apr 1, 2024, $33M — Square Peg, AirTree Ventures, Prosus Ventures, Great Southern Bank
- Seed, May 4, 2022, $23M — Square Peg, AirTree Ventures, Great Southern Bank

## Investors

- Square Peg (https://capitalatlas.ai/funds/square-peg) — Seed, Series A
- AirTree Ventures (https://capitalatlas.ai/funds/airtree-ventures) — Seed, Series A
- Great Southern Bank — Seed, Series A
- Prosus Ventures (https://capitalatlas.ai/funds/prosus-ventures) — Series A