# Circulus funding: rounds and investors

> Circulus has raised $300M across 1 round since 2022. Investors include Apollo. Every round with its source.

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

United States · [Funded startup](https://millionrounds.com/companies)

# Who invested in *Circulus*

One round we have observed, with the one investor named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Chemicals & Materials Manufacturing

Funding summary Updated 26 Oct 2026

**$300M** raised across 1 round since 2022, from 1 source

- **Latest round:** Debt, $300M Oct 2022
- **Investors:** 1

See who backed them

## The rounds

- **Oct 2022** Debt **$300M** [Apollo](https://millionrounds.com/fund/apollo-global-management) Source recorded

## Founders and team

From Circulus's own website: 9 on the team.

- **Diane Gasparro** Vice President - Sales
- **Rama Mullapudi** CEO, Circulus
- **C. Ramesh Kumar** Senior Technical Manager
- **Harish Edupuganti** Quality Assurance (QA) Manager
- **Krishna Chaitanya Nidadavolu** Manager - Operations
- **Ravindra Dunna** Director & General Manager - IT & BPO
- **Shiva Ammu** Deputy General Manager - Inside Sales
- **Sudhakar Tearati** Senior Technical Manager
- **Vijayram Dunna** Deputy General Manager - Product Development

## Everyone who backed them

[Apollo](https://millionrounds.com/fund/apollo-global-management) Private equity **1** round

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

## Also claim to have backed them

This firm lists Circulus as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[Ara Partners](https://millionrounds.com/fund/ara-partners) Private equity Per its own site

## Quick answers about Circulus

### Who invested in Circulus?

Circulus's investors include Apollo.

### How much has Circulus raised?

Circulus has raised $300M across 1 round since 2022.

### When did Circulus last raise?

Circulus's most recent round was a Debt of $300M in Oct 2022.

### What was Circulus's biggest round?

Its most recent round, $300M in Oct 2022, is also its largest on record.

### Who backed Circulus first?

Circulus's first round on record, in Oct 2022, was backed by Apollo.

### What stage is Circulus at?

Circulus's latest named round is a Debt, in Oct 2022.

### Where is Circulus based?

Circulus is based in the United States.

## Companies like Circulus

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

[**Apex** $1.1B · Oct 2026](https://millionrounds.com/company/apex)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)[**ZwitterCo** $58M · Oct 2026](https://millionrounds.com/company/zwitterco)[**Arda** $233M · Oct 2026](https://millionrounds.com/company/arda)[**Origin** $121M · Oct 2026](https://millionrounds.com/company/origin)

## Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.

Open the investor searchOr these rounds in the app