The 20 sectors include: aerospace and defense, agriculture, apparel and textiles, business services, chemicals, construction, consumer products, energy, financial services, food and beverage, healthcare, hospitality and travel, industrial manufacturing, media and communications, mining, minerals, metals, pharmaceuticals, public services, retail, technology, and transport manufacturing.
Library Databases with Canadian, US, or Global content:
Most municipal, regional or provincial economic development agency websites contain industry profiles focusing on sectors of key importance.
To find information for your target market and industry, use an internet search engine to look for your city or region's investment or economic development office (e.g., Hamilton Economic Development or "Invest in Hamilton) and include search terms such as "key industries" or "key sectors" or "industry profiles".
Here are links to a few examples of such websites:
Well known management consulting firms such as Deloitte and PWC provide analysis of current and future conditions in a variety of industries by country (e.g. Canada, United States) and well as globally.
Start with these links but remember you may have to navigate to the Global sites of some firms for analysis of other countries or of global industries.