Como dizer "metade e metade" em inglês

Não vejo problema algum em dizer "half to X and half to Y" aqui. Está perfeito =)

Tenho que dividir metade para a empresa x e metade para empresa Y .

I have to give half to Company X and half to Company Y.
I have to give 50% to Company X and 50% to Company Y.
I have to give equal shares (of "name of object") to Company X and Company Y.
I have to divide equally (the "name of object") between Company X and Company Y.
I have to make sure that Company X and Company Y get equal shares (of the "name of object").

Obrigado pelas sugestões

abs

Mack

Another common expression.

"to give something fifty-fifty to two or more people"