I’ve worked with Key HR to revise or write a significant amount of their communication. Internal paperwork, from loss prevention to benefits explanations, and outward interaction, from termination letters to welcome notes from the president for new employees, have all gotten an executive white-glove treatment.
Their benefit is an clean fluidity throughout all their interpersonal exchange. The company can maintain a consistent tone while having confidence that all their written exchange of information will be grammatically adept, pleasantly appropriate, and professional.