「Z社は女性従業員の能力発揮の促進に併せ、障がい者が健常者とともにいきいきと働くことのできる職場づくりを目指した。」という一文を英訳するなら、

In parallel with the steps designed to increase opportunities for female workers to display their abilities, Z-Company also sought to achieve a working environment in which disabled persons, as well as able-bodied persons, could work cheerfully with a sense of purpose.

が適切です。