Senior PLC

Senior PLC

Senior PLC was founded in 1919 as a manufacturer of springs and pressings, later evolving into a precision-engineering supplier for aerospace and industrial markets. David Squires became CEO in 2015, succeeding Mark Rollins; Bindi Foyle serves as CFO. The company is publicly listed on the London Stock Exchange (ticker: SNR) and is headquartered in Rickmansworth, Hertfordshire. Senior operates through two divisions: Aerospace and Flexonics. The Aerospace division produces ducting, heat exchangers, and fluid-conveyance systems for commercial and defense aircraft — customers include Airbus, Boeing, Rolls-Royce, Safran, and GE Aerospace. The Flexonics division manufactures flexible metal hose assemblies, bellows, and thermal- management systems for vehicle exhaust, hydrogen fuel cells, power generation, and medical-device applications. Confirmed end-markets include commercial aerospace, defense, passenger vehicles, heavy truck, oil & gas, nuclear and renewables, and life sciences. Geographic footprint spans 13 countries with ~30 manufacturing sites across the UK, continental Europe, North America, and Asia. The company employs roughly 6,000 people and generated £878M in revenue for the year ended December 2025 (per published annual report, March 2026). In May 2026, Senior confirmed that it was considering a sale of its aerospace division to a US private-equity buyer, per Sky News — a potential structural shift that could reshape the group. The Flexonics division has been increasingly oriented toward electrification and energy-transition applications, including hydrogen fueling components. A structural differentiator is Senior's dual-sector industrial architecture: the group operates as both a high-barrier Tier-1 aerospace supplier and a diversified industrial components manufacturer. That hybrid model gives it cyclical exposure to both commercial aviation cycles and industrial decarbonisation trends. Its status as a public company with a concentrated institutional shareholder base — including a ~13% stake held by US activist investor Legion Partners as of 2025 — forces a level of governance and operational transparency uncommon among owner-operated family offices.