The phrase "additional competitors" is correct and usable in written English.
You can use it when referring to more competitors beyond those already mentioned or considered in a particular context, such as a market analysis or business strategy.
Example: "In our latest market report, we identified several additional competitors that have entered the industry this year."
Alternatives: "further competitors" or "extra competitors".
The expanding market brought additional competitors into the field, each with different approaches to the problem of vertical flight.
"Direct Broadcast Satellite has since shown itself to be a very effective competitor — and numerous additional competitors to incumbent cable operators have emerged," the association said.
One or more additional competitors would emerge after a rationalization of both the securities business and the capital-markets operation of the money center banks.
There is some overlap between the bank's investors and the revitalization group's board, but Mr. Geary, himself an investor, dismissed the suggestion that banning additional competitors might be seen as self-serving.
But if you add into the field additional competitors of varying strength levels, even the weakest competitors might be able to survive — if only because they're able to find a quiet corner to hide.
Additional competitors include delivery services like DHL.
Focusing on strategic choices, the experimental design investigates the impact of forward contracting on collusion and contrasts it to the effect of adding one additional competitor.
By the end of the year, the iPhone may have an additional competitor: Google phones.
However, we argue against it for the RoRo indicator given that: (a) fixed scores allow for the comparison of different datasets; (b) there is no theoretical reason to hypothesize that the influence of the relevant components is dynamic in nature (e.g., the point at which diminishing returns starts to have an impact on the effect of adding an additional competitor is robust in time).
Third, after this seven-day period, one additional competitor was added to each of the aquarium.
When an Atlantic salmon was added into the aquaria instead of a rainbow trout, neither the dominant nor the subordinate fish were affected by this additional competitor (Figures 2A, 2C), thus supporting the idea that the effect of rainbow trout on the behaviour of Atlantic salmon was highly species-specific (see also [9]).
