 | |
| Type | Public |
|---|---|
| LSE: SNR | |
| Industry | Manufacturing |
| Founded | 1933 |
| Headquarters | Rickmansworth, England, UK |
Key people | Ian King (Chairman) David Squires (CEO) |
| Products | Components and systems for vehicle and aerospace manufacturers and energy producers |
| Revenue |  £738.2 million (2025)1 |
| £47.3 million (2025)1 | |
 £(4.2) million (2025)1 | |
Number of employees | 4,974 (2025)1 |
| Website | www |
Senior plc is the holding company for a global group of firms in the manufacturing and engineering industries, headquartered in Rickmansworth, England. The Company is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.
History
Senior was originally established in 1933 by a group of former employees of Green's Economisers Ltd. as a rival concern.2 The company was listed on the London Stock Exchange as Senior Economisers Limited in 1947.2
It acquired GAMFG Precision LLC, a manufacturer of machined components and assemblies for the off-road land vehicle and aerospace markets, for US$45.0 million in 2012.3
It then bought Atlas Composites, a manufacturer of composite structures and tooling in 2013.4 It also bought Thermal Engineering, a supplier of high temperature lightweight aerospace components, for £22 million in 2013.5
It bought UPECA Technologies, a Malaysian-based manufacturer of high-precision engineered components serving the aerospace and energy sectors, in 2014.6
It acquired Lymington Precision Engineering, a manufacturer of precision-machined components, fabrications, assemblies and kit sets, for a minimum of £45.8 million in 2015.7 It also bought Steico Industries, a manufacturer of precision tube and duct assemblies for the commercial and defence aerospace industries, for £59 million in 2015.8
In June 2021 the company rejected a $1.2 billion buyout offer from US private-equity firm Lone Star.9
A private equity firm, Sullivan Street Partners, completed the acquisition of the company's former Aerostructures business in January 2026.10
In March 2026, Senior received a takeover proposal from Tinicum Inc. and Blackstone Private Investments Advisors. The company also confirmed that it had received approaches from four other businesses including the private equity firm, Advent International.11
Operations
Senior's constituent companies are grouped in two divisions: Aerospace, which manufactures components and systems for clients in the aerospace industry; and Flexonics, which primarily supplies the automotive and energy industries.12
Financial information
Financial results have been as follows:1
| Year to December | Revenue (£million) | EBIT (£m) | Net profit (£m) | Earnings per share (p) |
|---|---|---|---|---|
| 2025 | 738.2 | 47.3 | (4.2) | (1.0) |
| 2024 | 977.1 | 40.3 | 25.9 | 6.3 |
| 2023 | 963.5 | 37.9 | 31.1 | 7.5 |
| 2022 | 848.4 | 32.5 | 20.2 | 4.9 |
| 2021 | 658.7 | 10.5 | 24.2 | 5.8 |
| 2020 | 733.6 | (177.3) | (158.5) | (38.2) |
| 2019 | 1,110.7 | 61.6 | 29.2 | 7.0 |
| 2018 | 1,082.1 | 69.9 | 50.1 | 16.1 |
| 2017 | 1,023.4 | 65.5 | 60.3 | 14.4 |
| 2016 | 917.0 | 65.8 | 45.4 | 10.8 |
| 2015 | 849.5 | 72.3 | 48.5 | 11.6 |
| 2014 | 820.8 | 89.6 | 63.5 | 15.3 |
| 2013 | 775.1 | 93.3 | 71.4 | 17.2 |
| 2012 | 712.0 | 94.5 | 66.6 | 17.1 |
| 2011 | 640.7 | 83.0 | 55.0 | 13.7 |
| 2010 | 566.9 | 62.2 | 40.4 | 10.1 |
| 2009 | 540.1 | 61.0 | 39.0 | 8.9 |
| 2008 | 562.4 | 59.8 | 39.2 | 10.6 |
| 2007 | 470.7 | 41.5 | 27.9 | 7.7 |
| 2006 | 387.9 | 24.5 | 15.2 | 4.7 |
| 2005 | 338.6 | 19.6 | 12.1 | 3.8 |
| 2004 | 306.8 | 17.1 | 6.5 | 3.4 |
| 2003 | 322.9 | 18.9 | 4.6 | 3.0 |
Note: Accounts to 2003 prepared according to United Kingdom Generally Accepted Accounting Principles. Accounts from 2004 onwards prepared according to International Financial Reporting Standards.
References
References
- "Annual Report 2025" (PDF). Senior plc. Retrieved 2 March 2026.
- "History of the Senior plc Group". Senior plc. Retrieved 2008-07-12.
- "Senior PLC buys Gamfg, parent for $45M". Marketwatch. 5 November 2012. Retrieved 4 March 2020.
- "Senior plc acquires Atlas Composites". ADS Advance. 28 February 2013. Retrieved 4 March 2020.
- "Senior plc acquires Thermal Engineering". Aero Magazine. 3 December 2013. Retrieved 4 March 2020.
- "Senior Plc acquires Upeca Technologies". Shares Magazine. 10 March 2014. Retrieved 4 March 2020.
- "Senior Plc acquires Lymington Precision Engineering". You Invest. 1 April 2015. Retrieved 4 March 2020.
- "Senior agrees to £59M aerospace acquisition". Insider Media. 19 November 2015. Retrieved 4 March 2020.
- "Britain's Senior Plc rejects Lone Star's revised $1.2 bln take-private offer". Reuters. 22 June 2021. Retrieved 25 June 2021.
- "PE firm completes carve-out of Senior's Aerostructures business with new head office established". Insider Media. 6 January 2026. Retrieved 2 March 2026.
- "UK aerospace supplier Senior receives takeover proposal from Ticinum-blackstone". Reuters. 3 March 2026.
- "Numis Indicates Potential 22.34% Increase In Shares Of Senior". Risers and Fallers - Business, Finance, Politics & Technology News. 15 April 2016. Retrieved 15 April 2016.