Decima Research
Professional services
UnclaimedDecima Research was a Canadian public-opinion polling and market-research company known especially for tracking federal political opinion.
Last updated August 25, 2026
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Overview
Decima Research was a Canadian public-opinion and market-research company. Its work included regular polling of the federal political scene, conducted both during election campaigns and between elections. This made the organization part of Canada's recurring public-opinion measurement infrastructure rather than a firm focused only on campaign-period surveys. Its research activities were supported by fieldwork carried out through Opinion Search, a call-centre operation. The company was associated with Allan Gregg, who served as its head. Gregg left Decima in 1994 and entered semi-retirement after the Progressive Conservative Party's poor result in the 1993 Canadian federal election. The available historical record links his departure to that political and professional context, but does not provide enough information to establish the company's founding date, original ownership, or the full sequence of its leadership afterward. In 2007, Decima Research became a subsidiary of Harris Insights & Analytics. This transaction or corporate change placed the Canadian research operation within a larger international market-research group. The available reference material does not specify the purchase price, detailed transaction structure, or whether the Decima name continued to be used independently after the change in ownership. Decima is also recognized by the Roper Center at Cornell University as a Historically Contributing Data Provider. That recognition reflects the value of its historical polling data for the study of public opinion. The company is therefore relevant both as a commercial research provider and as a source represented in the archival record of Canadian political polling. Publicly available information is limited, and current operations, headquarters, website, product portfolio, and present corporate status are not established by the supplied sources.
History
Decima Research was a Canadian company operating in public-opinion polling and market research. Its best-documented activity was the regular measurement of federal political opinion in Canada. The firm conducted this type of polling regardless of whether a federal election campaign was underway, giving it a continuing role in tracking political sentiment rather than limiting its work to election-period assignments. Allan Gregg was the head of Decima Research during an important period in its history. He left the firm in 1994 and went into semi-retirement. The available account connects his departure with the electoral disaster experienced by the Progressive Conservatives in the 1993 federal election. The source does not provide a detailed explanation of Decima's internal organization at the time, nor does it identify all subsequent leaders or changes in its research methodology. Decima's fieldwork was conducted by Opinion Search, a call centre. This arrangement indicates a separation between the research and polling operation and the practical work of contacting respondents and collecting survey data. No further details about sampling systems, survey technology, clients, or geographic coverage are established in the supplied material. In 2007, Decima Research became a subsidiary of Harris Insights & Analytics. The change connected the Canadian company to a larger research organization, although the available source does not state the financial terms, exact legal structure, or subsequent fate of the Decima name. Current operating status and corporate ownership beyond that subsidiary relationship are therefore uncertain. The Roper Center at Cornell University recognizes Decima Research as a Historically Contributing Data Provider. This designation gives the company continuing importance in the preservation and study of polling history. Its historical relevance rests primarily on the body of Canadian public-opinion data associated with its work, particularly federal political polling. Because the available reference material is brief, a complete chronology of its foundation, expansion, leadership, services, and post-2007 operations cannot be established without additional reliable sources.
- 2007
Decima becomes a Harris subsidiary
[1]Decima Research became a subsidiary of Harris Insights & Analytics, placing the Canadian polling and market-research business within the Harris organization.
- 1994
Allan Gregg leaves Decima Research
[1]Allan Gregg, identified as the head of Decima Research, left the company and entered semi-retirement after the Progressive Conservatives' poor result in the 1993 federal election.
Products and positioning
A Canadian public-opinion and market-research provider with a notable role in federal political polling and an archived contribution to the historical polling record.
Public-opinion research
Federal political opinion polling
Decima regularly conducted polling on Canada's federal political scene, including outside active election campaigns. This ongoing approach positioned the firm as a source of longitudinal information about political attitudes and voting intentions rather than solely as an election-period survey contractor.
Research services
Market research
The company operated as a market-research provider in addition to its political polling work. The supplied reference does not identify specific commercial research packages, industries served, methodologies, or named clients.
Survey fieldwork
Opinion Search fieldwork
Decima's fieldwork was conducted by Opinion Search, a call-centre operation. The arrangement supplied the respondent-contact and data-collection function for Decima's research, while the available source does not describe the contractual or operational details of the relationship.
Brand decisions
2007
Decima Research becomes a Harris Insights & Analytics subsidiaryM&ABackground
Decima was operating as a Canadian public-opinion and market-research company with a recurring federal political polling practice.
Action taken
The company became a subsidiary of Harris Insights & Analytics.
Aftermath
The supplied sources do not establish the transaction's financial terms, changes to the Decima brand, or the company's subsequent operating status.
Sources1 sources
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