# Constantinople funding: rounds and investors

> Constantinople has raised $77M across 2 rounds since 2024. Investors include Airtree Ventures, Square Peg Capital and Prosus Ventures.

Source: https://millionrounds.com/company/constantinople (Millionrounds; every figure on the page links to its filing or article)

Australia · [Series B startup](https://millionrounds.com/companies)

# Who invested in *Constantinople*

2 rounds we have observed, with the 3 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Customer Experience

Raised 3 months ago

Funding summary Updated 26 Oct 2026

**$77M** raised across 2 rounds since 2024, from 2 sources

**$32M** Series A **$44M** Series B

- **Latest round:** Series B, $44M Aug 2026
- **Step-up i:** 1.4×
- **Investors:** 3

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2025 2026

**$32M** Series A

**$44M** Series B

- **First round:** Series A, $32M
- **Biggest round:** $44M
- **Between rounds:** 2.3 years

## The rounds

- **Aug 2026** Series B **$44M** *3 returning* [Airtree Ventures](https://millionrounds.com/fund/airtree) [Square Peg Capital](https://millionrounds.com/fund/square-peg-capital) [Prosus Ventures](https://millionrounds.com/fund/prosus-ventures) Source recorded
- **Apr 2024** Series A **$32M** *3 new* [Airtree Ventures](https://millionrounds.com/fund/airtree) [Square Peg Capital](https://millionrounds.com/fund/square-peg-capital) [Prosus Ventures](https://millionrounds.com/fund/prosus-ventures) Source recorded

## Founders and team

From Constantinople's own website: 2 founders, 1 on the team.

**Dianne Challenor** Co-Founder & Co-CEO

**Macgregor Duncan** Co-Founder & Co-CEO

- **Paul Bassat** Board Member

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Series A** 2024 **Series B** 2026 [Airtree Ventures](https://millionrounds.com/fund/airtree) [Square Peg Capital](https://millionrounds.com/fund/square-peg-capital) [Prosus Ventures](https://millionrounds.com/fund/prosus-ventures)

## Everyone who backed them

[Airtree Ventures](https://millionrounds.com/fund/airtree) VC firm **2** rounds

[Square Peg Capital](https://millionrounds.com/fund/square-peg-capital) VC firm **2** rounds

[Prosus Ventures](https://millionrounds.com/fund/prosus-ventures) VC firm **2** rounds

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=constantinople).

## Quick answers about Constantinople

### Who invested in Constantinople?

Constantinople's investors include Airtree Ventures, Square Peg Capital and Prosus Ventures.

### How much has Constantinople raised?

Constantinople has raised $77M across 2 rounds since 2024.

### When did Constantinople last raise?

Constantinople's most recent round was a Series B of $44M in Aug 2026.

### What was Constantinople's biggest round?

Its most recent round, $44M in Aug 2026, is also its largest on record.

### Who backed Constantinople first?

Constantinople's first round on record, in Apr 2024, was backed by Airtree Ventures, Square Peg Capital and Prosus Ventures.

### What stage is Constantinople at?

Constantinople's latest named round is a Series B, in Aug 2026.

### Where is Constantinople based?

Constantinople is based in Australia.

## Companies like Constantinople

In the same sector, and raised in the last eighteen months.

[**Operata** $11M · Feb 2026](https://millionrounds.com/company/operata)[**Nevam** $1.2M · Sept 2025](https://millionrounds.com/company/nevam)[**Brainfish** $6.4M · Jul 2025](https://millionrounds.com/company/brainfish)[**Flyle** $13M · Oct 2026](https://millionrounds.com/company/flyle)[**Siena AI** $23M · Oct 2026](https://millionrounds.com/company/siena-ai)[**Nuvia** $3.5M · Sept 2026](https://millionrounds.com/company/nuvia)

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