The phrase "a sizable base" is correct and usable in written English.
It can be used when referring to a large or significant group of people, resources, or support in various contexts, such as business, research, or demographics.
Example: "The company has built a sizable base of loyal customers over the years."
Alternatives: "a substantial foundation" or "a large group".
He can attract a sizable base of evangelicals and very conservative Republicans in South Carolina and likely continue his streak of meeting or exceeding expectations.
Mrs. Clinton begins with a sizable base of middle- and lower-income, less-educated voters that have rallied behind her elsewhere in the Midwest, and she has been working to expand her appeal to higher-income suburbanites, according to party officials here.
The political correctness phenomenon has been an inescapable part of the culture since 1960s-era radicals established a sizable base in higher education and began the job of assigning victimhood to scores of new categories.
Equity analyst Tuna Amobi of CFRA Research, projects total revenue growth of 5.6% in fiscal 2017, ending Sept. 30, noting management's revised target of 3%to4%4% growth in global comparable sales, and its plans to open about 2,100 new stores with a sizable base in China/Asia Pacific.
Labor and progressive organizations, which make up a sizable base of Change.org's client list, threatened to pull out over the Rhee situation.
According to documents, Calabrese and his funders also held off on pushing a hormesis regulatory agenda until they'd built a sizable base of published scientific research.
Besides money, polling and backers, in a minority dominated state like California, Harris and Sanchez each have a natural and sizable base vote that's comprised of key demographics: Harris, with African American voters, and Sanchez, with Latino voters.
That's coming from the base he already built, yes, but that's also kind of the point: 225,000 people gave to his campaign almost immediately, signifying a sizable reassembled base with which to start in a crowded field where assembling such a base won't be easy.
PGP was a proven technology with a sizable customer base.
"There are good internal controls, credit strength and also a sizable tax base".
The Civil Wars, he noted, built a sizable fan base with their Grammy Awards.
