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Mary Waldner
Director/Board Member at
SENIOR PLC
Net worth: 79 954 $ as of 30/08/2026
Profile
Mary J.
Waldner is currently an Independent Non-Executive Director at Senior Plc since 2021.
Ms. Waldner serves as Chief Financial Officer & Director at Lloyd's Register Group Ltd. since 2016 and is also a Director at Lloyd's Register Group Services Ltd. Ms. Waldner will be Senior Independent Non-Executive Director at Tt Electronics Plc starting in 2026.
Ms. Waldner is a Fellow at The Chartered Institute of Management Accountants.
Formerly, Ms. Waldner was Director-Group Finance at QinetiQ Group plc from 2011 to 2013.
Ms. Waldner was Director & Group Finance Director at Ultra Electronics Holdings Ltd. (United Kingdom) from 2013 to 2016.
Ms. Waldner was Independent Non-Executive Director at Oxford Instruments Plc from 2016 to 2025.
Ms. Waldner was Group Finance Controller at 3i Group Plc from 2009 to 2011.
Ms. Waldner graduated from the University of Oxford in 1990.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 30/12/2025 | 20,000 ( 0% ) | 79 954 $ | 30/08/2026 |
Mary Waldner active positions
| Companies | Position | Start |
|---|---|---|
| SENIOR PLC | Director/Board Member | 30/11/2021 |
| TT ELECTRONICS PLC | Director/Board Member | 26/08/2026 |
Lloyd's Register Group Ltd.
 Lloyd's Register Group Ltd. Miscellaneous Commercial ServicesCommercial Services Operates as a professional service company that provides engineering and technology for the maritime industry | Director of Finance/CFO | 29/02/2016 |
Lloyd's Register Group Services Ltd.
 Lloyd's Register Group Services Ltd. Miscellaneous Commercial ServicesCommercial Services Provides engineering, technical and business services | Director/Board Member | - |
The Chartered Institute of Management Accountants
 The Chartered Institute of Management Accountants Other Consumer ServicesConsumer Services College/University | Corporate Officer/Principal | - |
Former positions of Mary Waldner
| Companies | Position | End |
|---|---|---|
| OXFORD INSTRUMENTS PLC | Director/Board Member | 02/02/2025 |
| ULTRA ELECTRONICS | Director of Finance/CFO | 15/03/2016 |
| QINETIQ GROUP PLC | Director of Finance/CFO | 31/05/2013 |
| 3I GROUP PLC | Comptroller/Controller/Auditor | 31/05/2011 |
Training of Mary Waldner
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
69
1st degree connections
10
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 10 |
|---|---|
3i Group Plc
 3i Group Plc Investment Trusts/Mutual FundsMiscellaneous Operates as an investment company that specializes in private equity and infrastructure | Miscellaneous |
The Chartered Institute of Management Accountants
The Chartered Institute of Management Accountants Other Consumer ServicesConsumer Services College/University | Consumer Services |
QinetiQ Group plc
 QinetiQ Group plc Aerospace & DefenseElectronic Technology Provides technology development and consultancy services to the defense, security and related markets | Electronic Technology |
Ultra Electronics Holdings Ltd. (United Kingdom)
 Ultra Electronics Holdings Ltd. (United Kingdom) MiscellaneousMiscellaneous Functions as an investment holding company | Miscellaneous |
Tt Electronics Plc
 Tt Electronics Plc Electronic ComponentsElectronic Technology Manufactures and supplies electronics to defence, aerospace, medical, automotive and industrial electronics markets | Electronic Technology |
Senior Plc
 Senior Plc Aerospace & DefenseElectronic Technology Manufactures and markets components for the aerospace, defense, land vehicle, and energy markets | Electronic Technology |
Oxford Instruments Plc
 Oxford Instruments Plc Electronic Equipment/InstrumentsElectronic Technology Operates as a holding company whose subsidiaries provides products and solutions that enable fabrication & characterization of materials and devices | Electronic Technology |
University of Oxford
 University of Oxford Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Lloyd's Register Group Ltd.
Lloyd's Register Group Ltd. Miscellaneous Commercial ServicesCommercial Services Operates as a professional service company that provides engineering and technology for the maritime industry | Commercial Services |
Lloyd's Register Group Services Ltd.
Lloyd's Register Group Services Ltd. Miscellaneous Commercial ServicesCommercial Services Provides engineering, technical and business services | Commercial Services |
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