The phrase "a leading competitor" is correct and usable in written English.
It can be used to describe a company or individual that is among the top in their industry or market.
Example: "In the tech industry, Company X is considered a leading competitor due to its innovative products and strong market presence."
Alternatives: "a top contender" or "a major player".
An executive with a leading competitor of Microsoft's says of Gates, "Hey, I think the guy is truly dangerous.
In comparison, ReVolt Technology, a leading competitor pursuing similar technology, hopes to reach 1,000 cycles by 2013.
His announcement on Wednesday stole attention from a rally by a leading competitor in his own party, the former military dictator Ibrahim Babangida.
But FiOS is a leading competitor on Long Island to Cablevision, the dominant provider of pay television and high-speed Internet in that market.
Yahoo, a leading competitor to Google, began a shuttle program in 2005 that could be described as the Pepsi to Google's Coke.
February 16 , 1959Wiesbaden, Germany John McEnroe, in full John Patrick McEnroe, Jr. (born Feb. 16, 1959, Wiesbaden, W.Ger)., American tennis player who established himself as a leading competitor in the late 1970s and the '80s.
Schlenkerla is Merz's leading competitor as a brewer and purveyor of smoked beer.
So although we were nominally smaller than our leading competitor, from an organizational perspective we were much larger, because the competitor wasn't a unified whole.
In 2004, Great Southern's leading competitor Timbercorp reported a rise in plantation land prices from around A$3,000 to around A$6,000 per hectare in just five years.
The company's leading competitor may be OurStory.com, a similar site that received $6 million in VC funding in January.
Its leading competitor, Christie's, followed that announcement with a somewhat vague proclamation promising to have its own site up by September, with no other details, which was seen by many as a knee-jerk attempt to catch up.
