Thanks to http://www.opensecrets.org much of the data is available to the public.

Below is the top ten largest all time giving organizations.

1. American Fedn of State, County, & Municipal Employees
2. AT&T Inc
3. National Association of Realtors
4. Assn of Trial Lawyers of America
5. National Education Assn
6. Intl Brotherhood of Electrical Workers
7. Laborers Union
8. Service Employees International Union
9. Goldman Sachs
10. Communications Workers of America

Here is the breakdown of the data:

For the last 9 election cycles (1990-2006) these organizations have contributed over $278 million!! Of that 80%...let me repeat that 80% of those funds went to support DEMOCRAT candidates!!

$223,897,759 went to democrats
$ 53,490,761 went to republicans

If you think that is bad wait until you see this:

• 99% of Communications Workers of America donations went to Democrats
• 98% of AFSCME donations went to Democrats
• 97% of Intl Brotherhood of Electrical Workers donations went to Democrats
• 96% of Service Employees International Union donations went to Democrats
• 93% of National Education Assn donations went to Democrats
• 92% of Laborers Union donations went to Democrats
• 90% of Assn of Trial Lawyers of America donations went to Democrats
• 61% of Goldman Sachs donations went to Democrats

Only AT&T and National Assn of Realtors gave more to Republicans…

• 56% of AT&T donations went to Republicans
• 53% of National Assn of Realtors donations went to Republicans
  

Now I know that a number of you out there will complain that I only took the top ten and they happen to be unions so I looked at the top 101 organizations as well.

We find that for the same time period (1990-2006) the top 101 organizations donated $1,377 million, of which 59% went to DEMOCRATS where only 40% went to Republicans!!!

The difference is over $264 million more to democrats or about $29 million per election!

Only 7 organizations donate 80% or more of their money to republicans while 20 organizations donate 90% or more of their money to democrats!

Just some thing to think about.