I have ran each of those though the AM Best company and they are not even listed as a insurance company and are not listed as a rate and also not listed as a non rated company.
It appears they are all companies or marketing companies under Sun Life Finicial of Canada. Here is the AM Best ratings on them A++
and other info
07101 Sun Life Assurance Company of Canada
(Life/Health - Insurance Company) A++ Stable aa+ Stable CA: Ontario
Thier last annouced percentage was in 2002, and it was 6.5. as listed under AM Best
Thier current redeemtion rate as listed in march of 2007 was 8.526
They operate under 15 different company names, depending on what nation they are doing business in. all those names are found here.
Sun Life Financial - Select by country
**** I will note there are about 10 companies that use very simular names as Sun Life, several are not rated and others rated poorly.