A new survey reveals that nearly 45% of employees said their chief execuitve is not visible to staff and discourages them from dropping into their office.
The report, from Dublin-based communications agency PR360, also shows that almost 30% of CEOs rarely or never socialise with staff, and a third of employees said their CEO does not even know their name.
Almost half of employees also said they had had fewer than five interactions with their CEO in the last 12 months.
The "New Times, New Leaders: CEO Communications Report 2019" examined employees' attitude to their CEO or organisational head's communication abilities.
The report found that although CEOs appreciate the basic value of communications, few have any proper communications strategy in place.
It also shows that employees who are informed and engaged feel better about their work and do more of it, which benefits their organisation's productivity and revenue. 82% of workers said regular company-wide communication from the CEO is important.
Among this group, 89% said that regular communication is good for morale and productivity, and 70% said it makes them feel valued.
29% also said that effective communications from the company's boss resulted in improved financial performance.
PR360 said that by failing to engage with employees, CEOs could even be harming their organisation's ability to innovate.
Just over 40% of employees say that they do not feel comfortable approaching their CEO with a new idea for the business.
Dan Pender, Managing Director of PR360, said knowing why, what and how to communicate, internally and externally, is the CEO's most powerful asset.
Mr Pender said the best employees value good leadership and direction and when the CEO does not lead or avoids dealing with challenges and crises, employees grow disillusioned and look elsewhere for work.
"In an extremely tight labour market full of opportunity, a confident, proactive CEO is often the only thing keeping a good employee from jumping ship," he said.
Mr Pender said the report shows that the CEO is no longer just the suit at the top of the food chain.
"The CEO who broadly embraces an empathetic and open approach to communications will create a positive, more productive workplace culture. They will also improve their own performance," he added.