Tomkins plc
Former British multinational engineering and industrial group that expanded through acquisitions before being taken private and progressively broken up.
Last updated August 26, 2026
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Overview
Tomkins plc was a British multinational engineering and industrial group headquartered in London. Although the company began as a small manufacturer of buckles and fasteners, it became known for an acquisition-led conglomerate strategy that brought together businesses in industrial components, automotive systems, building products, food, and firearms. The company was founded in 1925 as the F.H. Tomkins Buckle Company. It became a public company on the London Stock Exchange in 1956. Its most dramatic period of expansion began in the 1980s after Greg Hutchings, formerly associated with Hanson, acquired a substantial stake and became chief executive. Under Hutchings, Tomkins used acquisitions and leveraged financing to build a broad portfolio of businesses with limited operational overlap. The group’s approach reflected the conglomerate model then prevalent in the United Kingdom and United States: management sought to acquire established companies, improve or consolidate them, and use the group structure to support further expansion. Major acquisitions included Smith & Wesson in 1987, RHM in 1992, and the United States-based Gates Corporation in 1996. Tomkins subsequently added Stant and Schrader, strengthening its automotive and industrial activities. Gates became particularly important, developing into Tomkins’ largest division and a major supplier of power-transmission belts, hoses, hydraulic products, and related components. Building-products businesses such as Hart & Cooley, Selkirk, and Ruskin also formed a significant part of the group. Tomkins’ diverse portfolio attracted considerable public attention. Its ownership of RHM, a food group associated with baking products, alongside Smith & Wesson, a firearms manufacturer, led commentators to describe it as the “buns-to-guns” company. The breadth of the portfolio was both a distinguishing feature and a strategic vulnerability: the businesses operated in different markets and required different forms of management, while investors increasingly questioned the value of a highly diversified conglomerate. Hutchings left the company in 2000 following allegations concerning executive excess. Tomkins then began reducing the breadth of its holdings. RHM was sold soon afterward, and Smith & Wesson was sold the following year. The group increasingly concentrated on automotive components, industrial products, and building products, with Gates becoming its central operating asset. In July 2010, Tomkins was acquired by a Canadian consortium consisting of Onex Corporation and the Canada Pension Plan Investment Board for approximately £2.9 billion. The transaction took Tomkins private and ended its period as a listed public company. Under private ownership, the group’s assets were progressively reorganized and sold. In November 2012, Tomkins sold its share of a building-products portfolio that included Hart & Cooley, Selkirk, and Ruskin to the Canada Pension Plan Investment Board. In July 2014, Blackstone agreed to acquire Gates Corporation from Onex and the Canada Pension Plan Investment Board for $5.4 billion. Tomkins therefore ceased to function as an integrated, publicly traded conglomerate. Its history illustrates the rise and later unwinding of acquisition-driven industrial groups, as well as the eventual separation of specialized operating businesses into standalone ownership structures.
History
Tomkins originated in 1925 as the F.H. Tomkins Buckle Company, a small British producer of buckles and fasteners. The business later developed into a public company, listing on the London Stock Exchange in 1956. Its early identity was connected with manufactured hardware, but its later growth was driven far more by acquisitions than by the organic extension of its original product range. A major transformation began in the 1980s. Greg Hutchings, a former Hanson executive, acquired a 22.9% stake in Tomkins and subsequently became chief executive. He pursued an aggressive acquisition strategy, using the company as a platform for assembling a broad industrial and consumer portfolio. During the 1980s and early 1990s, Tomkins acquired businesses across unrelated sectors, reflecting the era’s enthusiasm for diversified conglomerates. Among the most visible acquisitions was Smith & Wesson in 1987. In 1992, Tomkins acquired RHM, bringing a major food and baking business into the group. The purchase of the United States-based Gates Corporation in 1996 marked a particularly important shift toward industrial and automotive markets. Tomkins later strengthened this area through the acquisition of Stant and Schrader. Gates became the group’s largest and most strategically important division, supplying components used in power transmission, fluid handling, hydraulics, and automotive systems. The unusual combination of businesses made Tomkins a frequent subject of business commentary. Its ownership of a food group through RHM and a firearms manufacturer through Smith & Wesson prompted the nickname “buns-to-guns.” The phrase captured both the breadth of Tomkins’ holdings and the criticism that the group lacked a coherent industrial identity. Hutchings resigned as chief executive in 2000 following allegations of executive excess. The leadership change coincided with a reassessment of the conglomerate strategy. Tomkins sold RHM shortly afterward and disposed of Smith & Wesson the following year. The company’s portfolio became more concentrated in automotive components, industrial products, and building products. Tomkins remained listed until July 2010, when Onex Corporation and the Canada Pension Plan Investment Board acquired it for approximately £2.9 billion. The transaction converted Tomkins into a privately held group. After the acquisition, its assets were separated and sold in stages rather than maintained as one integrated public company. In November 2012, Tomkins sold its portion of a building-products portfolio comprising Hart & Cooley, Selkirk, and Ruskin to the Canada Pension Plan Investment Board. In July 2014, Blackstone agreed to purchase Gates Corporation from Onex and the Canada Pension Plan Investment Board for $5.4 billion. The sale of Gates, the group’s largest division, represented a decisive step in the dismantling of the Tomkins portfolio. Tomkins’ corporate history runs from a specialist hardware manufacturer to a highly diversified acquisition vehicle and finally to a privately owned collection of businesses sold to separate owners. It is an example of the expansion and subsequent breakup of the classic multi-industrial conglomerate.
- 2014
Gates sale agreed with Blackstone
[1]Blackstone agreed to acquire Gates Corporation for $5.4 billion, further dismantling the former Tomkins group.
- 2012
Building-products assets sold
[1]Tomkins sold its portion of a building-products group including Hart & Cooley, Selkirk, and Ruskin to the Canada Pension Plan Investment Board.
- 2010
Tomkins taken private
[1]Onex Corporation and the Canada Pension Plan Investment Board acquired Tomkins for approximately £2.9 billion.
- 2000
Greg Hutchings resigns
[1]Hutchings left the company following allegations concerning executive excess.
- 1996
Gates Corporation acquired
[1]Tomkins acquired the United States-based Gates Corporation, accelerating its move into industrial and automotive components.
- 1992
RHM acquired
[1]The acquisition of RHM expanded Tomkins into food and baking-related businesses.
- 1987
Smith & Wesson acquired
[1]Tomkins expanded into firearms through the acquisition of Smith & Wesson.
- 1983
Greg Hutchings acquires a major stake
[1]Greg Hutchings acquired a 22.9% interest in Tomkins and later became chief executive, initiating a period of rapid acquisition-led expansion.
- 1956
Listing on the London Stock Exchange
[1]Tomkins became a publicly traded company on the London Stock Exchange.
- 1925
Company founded as F.H. Tomkins Buckle Company
[1]Tomkins began as a small manufacturer of buckles and fasteners.
Products and positioning
Historically positioned as a diversified, acquisition-led industrial conglomerate, with a later concentration on automotive components, industrial products, and building products.
Industrial and automotive components
Gates Corporation
Gates was Tomkins’ largest division and its principal industrial and automotive platform. Its activities included power-transmission belts, hoses, hydraulic products, and related components used in vehicle and industrial systems. The acquisition of Gates in 1996 substantially changed Tomkins’ portfolio by giving the group a major international engineering business. Gates was later separated from Tomkins and sold to Blackstone.
Automotive components
Stant
Stant was one of the automotive and industrial businesses added to Tomkins during its expansion. It strengthened the group’s presence in vehicle-related components and complemented the broader automotive portfolio built around Gates and other acquired businesses.
Automotive components
Schrader
Schrader formed part of Tomkins’ expanded automotive-components division. Its inclusion reflected the group’s strategy of building a portfolio of specialized vehicle-system suppliers alongside Gates and Stant.
Building products
Hart & Cooley
Hart & Cooley was part of Tomkins’ building-products activities. The business was associated with building ventilation and related products and was included in the portfolio later transferred to the Canada Pension Plan Investment Board.
Building products
Selkirk
Selkirk was one of the building-products businesses held within the Tomkins portfolio. It operated in ventilation and related building-system products before being transferred as part of the 2012 asset sale.
Building products
Ruskin
Ruskin was included in Tomkins’ building-products group and was associated with air-control and ventilation products. Its ownership under Tomkins ended through the 2012 transaction involving the Canada Pension Plan Investment Board.
Food and baking · 1992
RHM
RHM brought food and baking businesses into Tomkins during the conglomerate’s most diversified period. Its presence helped produce the widely used “buns-to-guns” description of Tomkins, which referred to the simultaneous ownership of RHM and Smith & Wesson. RHM was later sold.
Firearms · 1987
Smith & Wesson
Smith & Wesson was acquired by Tomkins in 1987 and became the group’s most prominent firearms holding. Its ownership, alongside RHM and the engineering businesses, illustrated the breadth of Tomkins’ conglomerate model. Tomkins sold the business after Hutchings’ departure.
Controversies
Brand decisions
2014
Agree sale of Gates Corporation to BlackstoneM&ABackground
Gates had become Tomkins’ largest division and its most valuable industrial asset after the group was taken private.
Action taken
Blackstone agreed to acquire Gates Corporation from Onex Corporation and the Canada Pension Plan Investment Board.
Aftermath
The agreement marked a major stage in the breakup of Tomkins and separated its principal engineering business from the former group.
Agreed acquisition value. $5.4 billion (July 2014)
2012
Sell selected building-products assetsM&ABackground
Under private ownership, Tomkins began separating individual businesses and reducing the former group’s portfolio.
Action taken
Tomkins sold its portion of the building-products group containing Hart & Cooley, Selkirk, and Ruskin to the Canada Pension Plan Investment Board.
Aftermath
The transaction advanced the breakup of the integrated Tomkins group.
2010
Accept acquisition by Onex and the Canada Pension Plan Investment BoardM&ABackground
Following an unsolicited approach, Tomkins was acquired by a Canadian private-equity and pension-investment consortium.
Action taken
Onex Corporation and the Canada Pension Plan Investment Board acquired Tomkins for approximately £2.9 billion and took it private.
Aftermath
Tomkins ceased to be a listed company and its operating businesses were subsequently reorganized and sold.
Acquisition value. Approximately £2.9 billion transaction value (July 2010)
2000
Begin reducing the diversified conglomerate portfolioStrategyBackground
After Hutchings’ departure and criticism associated with executive excess, Tomkins moved away from the most extreme form of its diversified conglomerate model.
Action taken
The company sold RHM shortly after 2000 and Smith & Wesson the following year, while placing greater emphasis on automotive, industrial, and building-products businesses.
Aftermath
Tomkins became more focused operationally, although its assets were ultimately separated after the 2010 take-private transaction.
Recent events
- 2014
Blackstone agrees to acquire Gates Corporation[1]
M&A
Blackstone agreed to acquire Gates Corporation, Tomkins’ largest division, from Onex Corporation and the Canada Pension Plan Investment Board for $5.4 billion.
- 2012
Tomkins sells part of its building-products portfolio[1]
M&A
Tomkins sold its portion of a building-products group containing Hart & Cooley, Selkirk, and Ruskin to the Canada Pension Plan Investment Board.
- 2010
Onex and Canada Pension Plan Investment Board acquire Tomkins[1]
M&A
A Canadian consortium formed by Onex Corporation and the Canada Pension Plan Investment Board acquired Tomkins for approximately £2.9 billion, taking the company private and ending its London Stock Exchange listing.
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