# Tier IV funding: rounds and investors

> Tier IV has raised $106M across 2 rounds since 2019. Investors include Sompo Japan Nipponkoa Insurance, JAFCO and Sony Innovation Fund.

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

Japan · [Growth startup](https://millionrounds.com/companies)

# Who invested in *Tier IV*

2 rounds we have observed, with the 8 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.

Automotive & EVs Logistics

Raised 5 months ago

Funding summary Updated 26 Oct 2026

**$106M** raised across 2 rounds since 2019, from 2 sources

**$100M** Series A **$6.2M** Growth

- **Latest round:** Growth, $6.2M Jun 2026
- **Biggest round:** $100M Series A · Jul 2019
- **Investors:** 8 (1 led)

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.

2020 2021 2022 2023 2024 2025 2026

**$100M** Series A

**$6.2M** Growth

- **First round:** Series A, $100M
- **Biggest round:** $100M
- **Between rounds:** 6.9 years

## The rounds

- **Jun 2026** Growth **$6.2M** *3 new* [Sony Innovation Fund](https://millionrounds.com/fund/sony-innovation-fund) [MUFG Bank](https://millionrounds.com/fund/mufg-bank) [Mitsubishi Corporation](https://millionrounds.com/fund/mitsubishi-corporation) Source recorded
- **Jul 2019** Series A **$100M** *5 new* [Sompo Japan Nipponkoa Insurance](https://millionrounds.com/fund/sompo-japan-nipponkoa-insurance-2) Lead [JAFCO](https://millionrounds.com/fund/jafco) [Yamaha Motor](https://millionrounds.com/fund/yamaha-motor) AISAN TECHNOLOGY Co KDDI Corp Reported by Crunchbase News

## 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** 2019 **Growth** 2026 [Sompo Japan Nipponkoa Insurance](https://millionrounds.com/fund/sompo-japan-nipponkoa-insurance-2) L [JAFCO](https://millionrounds.com/fund/jafco) [Sony Innovation Fund](https://millionrounds.com/fund/sony-innovation-fund) [MUFG Bank](https://millionrounds.com/fund/mufg-bank) [Mitsubishi Corporation](https://millionrounds.com/fund/mitsubishi-corporation) [Yamaha Motor](https://millionrounds.com/fund/yamaha-motor) AISAN TECHNOLOGY Co KDDI Corp

## Everyone who backed them

[Sompo Japan Nipponkoa Insurance](https://millionrounds.com/fund/sompo-japan-nipponkoa-insurance-2) Corporate VC **1** round, led 1

[JAFCO](https://millionrounds.com/fund/jafco) Company **1** round

[Sony Innovation Fund](https://millionrounds.com/fund/sony-innovation-fund) Corporate VC **1** round

[MUFG Bank](https://millionrounds.com/fund/mufg-bank) Investment firm **1** round

[Mitsubishi Corporation](https://millionrounds.com/fund/mitsubishi-corporation) VC firm **1** round

[Yamaha Motor](https://millionrounds.com/fund/yamaha-motor) Corporate VC **1** round

AISAN TECHNOLOGY Co no record of our own yet **1** round

KDDI Corp no record of our own yet **1** round

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

## Quick answers about Tier IV

### Who invested in Tier IV?

Tier IV's investors include Sompo Japan Nipponkoa Insurance, JAFCO, Sony Innovation Fund, MUFG Bank and Mitsubishi Corporation, and 3 more on record.

### How much has Tier IV raised?

Tier IV has raised $106M across 2 rounds since 2019.

### When did Tier IV last raise?

Tier IV's most recent round was a Growth of $6.2M in Jun 2026.

### What was Tier IV's biggest round?

Tier IV's largest round on record is $100M (Series A), in Jul 2019, led by Sompo Japan Nipponkoa Insurance.

### Who backed Tier IV first?

Tier IV's first round on record, in Jul 2019, was backed by Sompo Japan Nipponkoa Insurance, JAFCO and Yamaha Motor and 2 others.

### What stage is Tier IV at?

Tier IV's latest named round is a Growth, in Jun 2026.

### Where is Tier IV based?

Tier IV is based in Japan.

### Who led Tier IV's rounds?

Sompo Japan Nipponkoa Insurance led the Series A in 2019.

## Companies like Tier IV

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

[**Mujin, Inc.** $224M · Oct 2026](https://millionrounds.com/company/mujin-inc)[**KG Motors** $5.3M · Sept 2026](https://millionrounds.com/company/kg-motors)[**emade** $393K · Sept 2026](https://millionrounds.com/company/emade)[**RoboTruck** $34M · Jul 2026](https://millionrounds.com/company/robotruck)[**CBcloud** Mar 2026](https://millionrounds.com/company/cbcloud)[**folofly** $6.3M · Mar 2026](https://millionrounds.com/company/folofly)

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