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Elsevier BV provides information analytics services for science and health industries. It offers research and development solutions, clinical solutions, research platforms, research intelligence, and healthcare education solutions. The company was founded in 1880 and is headquartered in Amsterdam, the Netherlands.

Elsevier, Inc. publishes journals, online materials, and books. It offers Scopus, ScienceDirect, Mendeley, Evolve, Knovel, Reaxys and ClinicalKey. The company is headquartered in Newton, MA.

RELX (Investments) Plc is engaged in the provision of financial services. The company is headquartered in London, the United Kingdom.

Part of RELX Plc, MLex Ltd. is an independent news organization that provides breaking news and forward-looking analysis on legal and regulatory risk across the globe. The private company is based in London, UK. Investigative journalists provide exclusive reporting on probes, policy and enforcement trends, litigation and legislative developments across key areas of regulatory risk. Trusted by top law firms, corporate counsel and the public sector, their coverage empowers their customers to respond first to changes in the regulatory landscape, navigating risks and leveraging opportunities for their business or clients. The British company was founded in 2005 by Duncan Lumsden, Robert Lloyd McLeod. The CEO is Bruce Macfarlane. MLex was acquired by LexisNexis Legal & Professional, Inc. on July 28, 2015.

Reed Exhibitions Ltd. operates as an events organizer. It serves the aerospace and marine; engineering; food; homes; telecoms; and travel industries. The company was founded in 1966 and is headquartered in Richmond, the United Kingdom.

Reed Expositions France SAS organizes trade fairs and shows. It offers conception, promotion and organization of events, which reflect markets, lifestyle trends and Web portals. The company was founded in 1996 and is headquartered in Puteaux, France.

RELX Group Plc engages in the provision of information and analytics for professional and business customers. It operates in four major segments such as scientific, technical and medical, risk and business analytics, legal and exhibitions. The company was founded on September 11, 1992 and is headquartered in London, the United Kingdom.

Butterworths Ltd. publishes legal, news, and business information. The firm provides information, which include tax, accountancy, and regulatory publications in online, print, and CD-ROM formats. It offers proprietary brands, advanced web technologies, and premium information sources for customers in the legal, corporate, government, public, and academic sectors. The company was founded in 1996 and is headquartered in London, the United Kingdom.

RELX, Inc. provides professional information solutions in the science, medical, risk, legal and business sectors. It offers information in hard copy and electronic formats to the government, scientific, legal, educational and business communities. The company is headquartered in New York, NY.

RELX (UK) Ltd. provides information-based analytics and decision tools for professional and business customers. The firm serves science, medical, legal, education and business communities. The company was founded on September 11, 1992 and is headquartered in London, the United Kingdom.

Part of RELX Plc, RELX (Holdings) Ltd. engages in other business support service activities. The private company is based in London, UK. Founded in 2006.

Part of RELX Plc, RELX Holdings BV operates as a financial holding Dutch company. The private company is based in Amsterdam, Netherlands.

Part of RELX Plc, RELX Nederland BV provides investment services. The private company is based in Amsterdam, Netherlands.

Elsevier Ltd. engages in the provision of information analytics solutions. It offers digital solutions and tools in the areas of strategic research management, research and development performance, clinical decision support, and professional education, including ScienceDirect, Scopus, SciVal, ClinicalKey, Mendeley, Knovel, Reaxys, Evolve, and Sherpath. The company was founded in 1880 and is headquartered in Oxford, the United Kingdom.

Elsevier Masson SAS publishes and sells medical book. It provides delivery service. The firm also offers electronic reading materials. The company was founded in 2005 and is headquartered in Issy-les-Moulineaux, France.

LexisNexis SA provides legal services through web portals. It provides Lexis 360, intelligent documentation, legal management and writing software, Lexis actu and machina, and media intelligence and due diligence solutions. The company is headquartered in Paris, France.

Part of RELX Plc, Reed Business BV is a premier data and Dutch analytics company that includes seven brands spanning multiple industries. The private company is based in Amsterdam, Netherlands. LexisNexis® Risk Solutions, one of its brands, provides deep industry expertise combined with vast data resources and advanced analytics to help customers find the answers they need. The CEO of the company is Peter de Mönning.

Reed Exhibitions Alcantara Machado organizes exhibitions. Its services include conferences, awardings, automotive shows, and others. The company was founded in 2007 and is headquartered in Sao Paulo, Brazil.

Part of RELX Plc, Elsevier A/S is a Danish company that manufactures and distributes research information management software and provides computer services related to academic research activities. The private company is based in Aalborg Oest, Denmark. The company was founded by Thomas Heide Jorgensen. Elsevier was acquired by Elsevier BV on August 15, 2012.

Part of RELX Plc, Elsevier Espana SL is a Spanish company that provides information analysis services to institutions and professionals to advance scientific progress, improve healthcare, and enhance performance. The private company is based in Barcelona, Spain. Elsevier offers research intelligence solutions that enable researchers and research directors to facilitate, conduct, and share research. The company provides resources to make a greater impact in their field and facilitate the search, access, analysis, and exchange of data and content. Elsevier's online bookstore offers free shipping and a wide range of journals, articles, textbooks, reference books, and DRM-free e-books in science, technology, and health.

Reed Midem SAS organises conferences, talks and professional trade fairs. The company was founded in 1965 and is headquartered in Boulogne-Billancourt, France.

Part of RELX Plc, Elsevier Information Systems GmbH is a German company that offers a portfolio of tools to meet the critical requirements of scientists, engineers, lecturers, and professionals in the field of research and development. The private company is based in Frankfurt, Germany. The company's Elsevier Research Intelligence Solutions solve the most urgent problems faced by scientists and research managers, enabling them to conduct research and share it with others. The CEOs of the company are Günther Kurapkat, Cameron Ross, Alexander van Boetzelaer.

LexisNexis Risk Solutions (Europe) Ltd. develops location and risk intelligence software for the insurance industry. The company is headquartered in Dublin, Ireland.

Mack-Brooks Exhibitions Ltd. engages in the provision of trade show organizing services. It owns and organizes a portfolio of business-to-business exhibitions, events and conferences in specialized industry sectors. The company was founded in 1965 and is headquartered in Saint Albans, the United Kingdom.

Snowflake Software Ltd. engages in the provision of cloud and on-premise software solutions for the aviation industry. It offers custom data management, accelerate SWIM (system wide information management) implementation, and data subscription services. The company was founded by Ian Painter and Eddie Curtis in 2001 and is headquartered in Southampton, the United Kingdom.

Fircosoft SAS provides payment, securities messages repair and watchlist filtering solutions for international financial institutions. The company was founded in 1990 and is headquartered in Paris, France.

Part of RELX Plc, RELX Finance BV is a Dutch company that provides investment services. The private company is based in Amsterdam, Netherlands.

Part of RELX Plc, RELX Overseas Holdings Ltd. functions as an investment holding British company. The private company is based in London, UK. Founded in 2015.

Part of RELX Plc, RELX Swiss Holdings SA provides investment services. The private company is located in Switzerland.

Founded in 2017, RELX Finance Ltd. is a British business support services company. The private company is based in London, UK and is part of RELX Plc. RELX Finance provides various business support services.

Part of RELX Plc, LexisNexis Univentio BV develops and publishes software. The private company is located in Netherlands.

Part of RELX Plc, Elsevier (Singapore) Pte Ltd. provides evidence-based content to improve clinical outcomes and positively impact care throughout the patient journey. Elsevier is based in Singapore, Singapore. The Singaporean company offers research intelligence solutions to help researchers and research managers enable, conduct, and share research. The private company also provides domain-specific data and deep learning models to help innovate faster.

Part of RELX Plc, LexisNexis Risk Solutions UK Ltd. is a private company that provides insights to organizations using Big Data, proprietary linking, and targeted solutions. Founded in 2010, the company is based in Maidenhead, UK. The British company's products can be browsed by industry or alphabetically, and they use data to deliver insights that help make organizations more secure and efficient.

RELX Australia Pty Ltd., a subsidiary of RELX Plc, is an Australian company that provides educational, professional and trade reference materials, subscription services & organizing exhibitions and conferences.

Part of RELX Plc, Reed Organisation SAS engages in the organization of fairs, trade shows, and congresses. The private company is based in Puteaux, France.