(FORTUNE Small Business) – Retirement plans--whether pensions or 401(k)s--are disappearing from the benefits packages of more small businesses, according to the Employee Benefit Research Institute. These days some 32% of employees who work at a company with 100 or fewer workers are offered a retirement plan, down from 34% in 2000. For large companies (with 1,000 or more workers), that number has hovered around 75% during that same period. A recent EBRI survey shows that the crunch is likely to persist at smaller firms. Charted above are small businesses that said they are very likely to start offering retirement plans in the next two years. --DAISY CHAN