5 nonprofits report paying Keller And Heckman Llp for contracted services, totaling $3.0 million across their most recent filings.
The largest relationships are with Vinyl Institute Inc, International Chewing Gum Association, and Northern Virginia Assoc Of Realtors Incorporated.
| Vinyl Institute Inc | $1.3M |
| International Chewing Gum Association | $1.1M |
| Northern Virginia Assoc Of Realtors Incorporated | $301K |
| Plastics Pipe Institute Inc | $136K |
| The Toy Association Inc | $118K |
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