Talk about a golden opportunity: In a period of less than two decades, the investible retirement assets of U.S. households aged 55 and over – a group itself becoming larger and larger over the years – will nearly double, to approximately $22 trillion.

The newest numbers from LIMRA's research indicate a substantial body of retirement savings and a vast population looking for retirement investment and post-retirement income stream help.

"There is a huge opportunity for the financial services industry to help Americans identify how much income they will need in retirement, develop a plan for investing their portfolio to generate income, while continuing to grow their assets," said Jafor Iqbal, associate managing director, LIMRA Retirement Research, in a release Monday.