# MassMutual Catalyst: portfolio, investments and team

> MassMutual Catalyst is an investment firm. 1 investment on record, 1 in the last 12 months, latest Aug 2026. Portfolio, stages, co-investors and team.

Source: https://millionrounds.com/fund/massmutual-catalyst (Millionrounds; every figure on the page links to its filing or article)

[Investor](https://millionrounds.com/investors)

# MassMutual Catalyst

Last cheque observed Aug 2026; 1 cheques on record.

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Investment firm Deploying now

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Deploying now

**100%** of best year **1** **cheques in 12 months**, 1 on record

Since the last cheque **66** days **00** hrs **00** min **00** sec

Median round **$40M** Rounds led **0 of 1**

Pitch MassMutual Catalyst

## MassMutual Catalyst highlights

- 01 1 cheques in the last 12 months

## What they do

- **Type:** Investment firm (from a list, unverified)
- **Cheque size:** Not stated
- **Cold pitches:** Not stated

## The record

Every round we can evidence, newest first **1 appearances**

- **2026** 1 round
- **Aug** **[Reframe Systems](https://millionrounds.com/company/reframe-systems)** US · Ventureburn **$40M** With 12 others

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

## The cheque

Median round joined **$40M** the round, not its cheque

Led 0 of 1 rounds **0%**

- **Sole investor:** Never alone
- **Last cheque:** Aug 2026

Cheques by month Led Joined

Dec 2023 Nov 2026

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## Recently backed

The latest companies MassMutual Catalyst put money into.

[**Reframe Systems** $40M · Aug 2026](https://millionrounds.com/company/reframe-systems)

## Quick answers about MassMutual Catalyst

### How active is MassMutual Catalyst?

1 investments on record, 1 of them in the last 12 months. The most recent was in Aug 2026.

### What has MassMutual Catalyst invested in recently?

Its most recent investments on record: Reframe Systems (Aug 2026).

### How big are MassMutual Catalyst's cheques?

The median round it joins is $40M.

### Is MassMutual Catalyst investing now?

Yes: it is actively investing, with 1 investments in the last 12 months.

### What kind of investor is MassMutual Catalyst?

MassMutual Catalyst is an investment firm.

### Where does this information on MassMutual Catalyst come from?

From 1 articles and filings naming it in a round, public registers and its own website, checked and rebuilt every night.

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Built from the rounds we watched, its filings and its own website, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=massmutual-catalyst) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=massmutual-catalyst)