# Sumitomo Drive Technologies acquires Riverside Spline & Gear

Sumitomo Drive Technologies, a division of Sumitomo Heavy Industries, has acquired Riverside Spline & Gear Inc., a manufacturer of engineered gears and shafts based in Marine City, Michigan. The acquisition was announced on February 17, 2026.

- Type: Acquisition
- Announced: 2026-02-17
- Where: Marine City, Michigan, United States
- Status: announced
- Products: engineered gears, shafts
- Sectors: [Industrial Machinery](https://endata.com/sectors/industrial-machinery.md), [Mining Equipment](https://endata.com/sectors/mining-equipment.md), [Food Processing Equipment](https://endata.com/sectors/food-processing-equipment.md), [Steel and Metal Products](https://endata.com/sectors/steel-metal-products.md)

## Companies

- [Sumitomo Heavy Industries](https://endata.com/companies/1271.md) (acquirer)
- [Sumitomo Drive Technologies](https://endata.com/companies/55502.md) (acquirer)
- [Angle Advisors](https://endata.com/companies/72618.md) (partner)
- [Riverside Spline & Gear](https://endata.com/companies/89765.md) (target)

## Sources

- [portal.sina.com.hk](https://portal.sina.com.hk/finance/finance-globenewswire/globenewswire/2026/02/17/1538202/angle-advisors-announces-riverside-spline-gear-has-been-acquired-by-sumitomo-drive-technologies/), 2026-02-17: "We are extremely excited about our partnership with Sumitomo Drive Technologies, whom we view as an excellent steward of the business my father founded in 1963."
- [lifestyle.pluralist.com](https://lifestyle.pluralist.com/story/502107/angle-advisors-announces-riverside-spline-gear-has-been-acquired-by-sumitomo-drive-technologies/), 2026-02-17: "We are extremely excited about our partnership with Sumitomo Drive Technologies, whom we view as an excellent steward of the business my father founded in 1963."
- [manilatimes.net](https://www.manilatimes.net/2026/02/18/tmt-newswire/globenewswire/angle-advisors-announces-riverside-spline-gear-has-been-acquired-by-sumitomo-drive-technologies/2279864), 2026-02-17: "We are extremely excited about our partnership with Sumitomo Drive Technologies, whom we view as an excellent steward of the business my father founded in 1963."

---
Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.