# Sumitomo Corporation

Announced · [Validators](https://builder.registrai.cc/ecosystem/validators/) · Last reviewed 2026-10-20

Japanese integrated trading company. Named as a member of Arc's founding validator cohort in Circle's 5 August 2026 announcement, and listed among payments and fintech ecosystem participants at testnet launch.

[Website](https://www.sumitomocorp.com/en/jp)

## Status

- First announced 2025-10-28

Evidence: [Circle announcement: founding validator cohort](https://www.arc.io/pressroom/circle-announces-founding-validator-cohort-and-major-integrations-for-arc-ahead-of-september-16-mainnet-launch)

## Sources

1. [Circle announcement: Arc public testnet](https://www.arc.io/pressroom/circle-launches-arc-public-testnet) (2026-10-20)
2. [Circle announcement: founding validator cohort](https://www.arc.io/pressroom/circle-announces-founding-validator-cohort-and-major-integrations-for-arc-ahead-of-september-16-mainnet-launch) (2026-10-20)
3. [Circle announcement: Arc mainnet launch](https://www.arc.io/pressroom/circle-launches-arc-mainnet-an-economic-operating-system-for-the-internet) (2026-10-20)
4. [Sumitomo Corporation website](https://www.sumitomocorp.com/en/jp) (2026-10-20)

[Suggest a correction](https://builder.registrai.cc/ecosystem/sumitomo-corporation/correct/) · [How we publish](https://builder.registrai.cc/how-we-publish/) · [Arc ecosystem](https://builder.registrai.cc/ecosystem/)

Source: https://builder.registrai.cc/ecosystem/sumitomo-corporation/ · Registrai, builder.registrai.cc, CC BY 4.0