Related undertakings - Summary of full list of related parties - United States to Vietnam (Details)
|
Dec. 31, 2025 |
| United States | Accuity Asset Verification Services Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
Accuity Asset Verification Services Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | American Textile Machinery Exhibition-International, Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
American Textile Machinery Exhibition-International, Inc. (40%)5
|
| Percentage of undertaking |
40.00%
|
| Reg office |
USA2
|
| United States | Aries Systems Corporation | Common Stock |
|
| Related party transactions |
|
| Company name |
Aries Systems Corporation
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA2
|
| United States | Blue Sky Regulatory Solutions LLC | Common Stock |
|
| Related party transactions |
|
| Company name |
Blue Sky Regulatory Solutions LLC
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA9
|
| United States | Dunlap-Hanna Publishers | Partnership Interest |
|
| Related party transactions |
|
| Company name |
Dunlap-Hanna Publishers (50%)6
|
| Percentage of undertaking |
50.00%
|
| Reg office |
USA8
|
| United States | Elsevier Holdings Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
Elsevier Holdings Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA3
|
| United States | Elsevier Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
Elsevier Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA2
|
| United States | Elsevier STM Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
Elsevier STM Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA3
|
| United States | Enclarity, Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
Enclarity, Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | Gaming Business Asia, LLC | Membership Interest |
|
| Related party transactions |
|
| Company name |
Gaming Business Asia, LLC (50%)6
|
| Percentage of undertaking |
50.00%
|
| Reg office |
USA2
|
| United States | Health Market Science, Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
Health Market Science, Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | HumanAPI Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
HumanAPI Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | ID Analytics, LLC | Common Stock |
|
| Related party transactions |
|
| Company name |
ID Analytics, LLC
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | Knovel Corporation | Common Stock |
|
| Related party transactions |
|
| Company name |
Knovel Corporation
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA2
|
| United States | Knowable Inc | Common Stock |
|
| Related party transactions |
|
| Company name |
Knowable Inc
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA4
|
| United States | Legal InQuery Solutions Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
Legal InQuery Solutions Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA4
|
| United States | LexisNexis Claims Solutions Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
LexisNexis Claims Solutions Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | LexisNexis Coplogic Solutions Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
LexisNexis Coplogic Solutions Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | LexisNexis of Puerto Rico, Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
LexisNexis of Puerto Rico, Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA6
|
| United States | LexisNexis Risk Data Management, LLC | Membership Interest |
|
| Related party transactions |
|
| Company name |
LexisNexis Risk Data Management, LLC
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | LexisNexis Risk Holdings Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
LexisNexis Risk Holdings Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | LexisNexis Risk Solutions Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
LexisNexis Risk Solutions Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | LexisNexis Risk Solutions FL Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
LexisNexis Risk Solutions FL Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | LexisNexis Special Services Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
LexisNexis Special Services Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA10
|
| United States | LexisNexis VitalChek Network Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
LexisNexis VitalChek Network Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | LNRS Data Services Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
LNRS Data Services Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | Matthew Bender & Company, Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
Matthew Bender & Company, Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA2
|
| United States | MLex US, Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
MLex US, Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA2
|
| United States | OCR Labs Global (USA) Inc | Common Stock |
|
| Related party transactions |
|
| Company name |
OCR Labs Global (USA) Inc
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | PCLaw Time Matters LLC | Membership Interest |
|
| Related party transactions |
|
| Company name |
PCLaw Time Matters LLC (51%)6
|
| Percentage of undertaking |
51.00%
|
| Reg office |
USA7
|
| United States | Portfolio Media, Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
Portfolio Media, Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA2
|
| United States | Reed Technology and Information Services LLC | Membership Interest |
|
| Related party transactions |
|
| Company name |
Reed Technology and Information Services LLC
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA2
|
| United States | RELX Capital Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
RELX Capital Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA3
|
| United States | RELX Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
RELX Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA2
|
| United States | RELX Risks Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
RELX Risks Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA5
|
| United States | REV IV Partnership LP | Partnership Interest |
|
| Related party transactions |
|
| Company name |
REV IV Partnership LP
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA3
|
| United States | SAFI Americas LLC | Membership Interest |
|
| Related party transactions |
|
| Company name |
SAFI Americas LLC (50%)6
|
| Percentage of undertaking |
50.00%
|
| Reg office |
USA2
|
| United States | SageStream, LLC | Membership Interest |
|
| Related party transactions |
|
| Company name |
SageStream, LLC
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| United States | The Reed Elsevier Ventures 2011 Partnership LP | Partnership Interest |
|
| Related party transactions |
|
| Company name |
The Reed Elsevier Ventures 2011 Partnership LP
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA3
|
| United States | The Reed Elsevier Ventures 2013 Partnership LP | Partnership Interest |
|
| Related party transactions |
|
| Company name |
The Reed Elsevier Ventures 2013 Partnership LP
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA3
|
| United States | The Remick Publishers | Partnership Interest |
|
| Related party transactions |
|
| Company name |
The Remick Publishers (50%)6
|
| Percentage of undertaking |
50.00%
|
| Reg office |
USA2
|
| United States | ThreatMetrix, Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
ThreatMetrix, Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA8
|
| United States | World Compliance, Inc. | Common Stock |
|
| Related party transactions |
|
| Company name |
World Compliance, Inc.
|
| Percentage of undertaking |
100.00%
|
| Reg office |
USA1
|
| Vietnam | Reed Exhibitions Vietnam Limited Liability Company | Ordinary |
|
| Related party transactions |
|
| Company name |
Reed Exhibitions Vietnam Limited Liability Company (64%)
|
| Percentage of undertaking |
64.00%
|
| Reg office |
VIE1
|