Henderson Group is the holding company of the investment management group Henderson Global Investors.  Henderson Group's principal place of business is in London and since December 2003 has been listed on the London Stock Exchange and Australian Securities Exchange - appearing in the FTSE 250 and ASX 200 indices. Henderson Group has approximately 40,000 shareholders worldwide. Since 31 October 2008, the Group has been incorporated in Jersey and is tax-resident in the Republic of Ireland.

Established in 1934 to administer the estates of Alexander Henderson, the first Lord Faringdon, Henderson Global Investors (Henderson) is a leading independent global asset management firm. The company provides its institutional, retail and high net-worth clients access to skilled investment professionals representing a broad range of asset classes, including equities, fixed income, property and private equity. With its principal place of business in London, Henderson is one of Europe's largest investment managers, with £63,616 million assets under management and employs around 1,060 people worldwide (as at 30 June 2012). 

In Europe, Henderson has offices in Amsterdam, Dublin, Edinburgh, Frankfurt, Luxembourg, Madrid, Milan, Paris, Vienna, Zurich and London. Henderson has had a presence in North America since 1999, when it acquired US real estate investment manager Phoenix Realty Advisers, and has offices in Chicago and Hartford. In Asia, Henderson has offices in New Delhi, Singapore (Asia headquarters), Hong Kong, Tokyo and Beijing as well as in Sydney, Australia.

With investment expertise across every asset class, Henderson's skilful investment managers invest in every major market around the globe. They are supported by a global team of researchers and economists who have a keen understanding of the economic forces driving the security markets and who undertake rigorous sector and theme analysis. Underpinning this process is a comprehensive risk-control framework to ensure that investment views are translated into portfolios managed in line with investors' risk and return requirements.  

Founded to administer the estates of Alexander Henderson, the first Lord Faringdon, Henderson Global Investors (Henderson) has been managing investments since 1934 and managing pension funds since 1975. It became a public company in 1983 and in 1992 acquired Touche Remnant from Société Générale, an acquisition that established Henderson as the UK's leading investment trust manager.  In March 1998, Henderson was acquired by AMP and was subsequently integrated with AMP Asset Management's operations in the UK and Australasia as Henderson Global Investors.  When AMP demerged in December 2003, the Australian and New Zealand investment management operations were retained by AMP, whilst the UK, European, North American and Asian operations became the HHG Group.

On listing the group comprised:

In April 2004, HHG sold its 50% joint venture holding in Virgin Money Group to Virgin Group, the joint venture partner.

In April 2005, HHG sold its Life Services business and changed its name to Henderson Group.

In December 2005, Henderson Group entered into an agreement to sell Towry Law UK. The sale was completed in May 2006.

Since 31 October 2008, the Group has been incorporated in Jersey and tax-resident in the Republic of Ireland.

On 9 April 2009 Henderson Group completed the acquisition of UK based New Star Asset Management Group PLC which has increased our UK retail presence.

On 4 April 2011 Henderson Group completed the acquisition of UK based Gartmore Group Limited which reinforces Henderson's position as a diversified fund management group with product strength in traditional long-only and absolute return offerings.

Henderson Global Investors principal place of business is in London, where managing director Andrew Formica has been at the helm since November 2008.