2025-11-05T16:36:28-06:00 2024-12-31 521392008 GELMAN ROSENBERG & FREEDMAN 4550 MONTGOMERY AVE SUITE 800N BETHESDA MD 208142930 990PF 2024-01-01 263402690 DELTARES USA INC DELT 3016422505 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 EDWIN WELLES DIRECTOR 3016422505 2025-11-05 1 0 RICHARD J LOCASTRO CPA P00288314 3019519090 2024 2025-03-06 01:10:19Z X 3366374 X X 327 327 327 0 0 7780736 0 7780736 7781063 327 7781063 211839 0 21184 190655 1181904 0 118190 1053883 302326 0 30233 269053 22586 0 0 52710 66074 0 0 82805 5448911 0 0 5192611 13962 0 13962 36338 0 0 36338 114385 0 0 114385 382362 0 0 429025 7780687 0 183569 7421465 0 0 7780687 0 183569 7421465 376 327 7597494 2356428 1943561 1943561 1344146 1119641 1344146 1344146 12024 58724 58724 100945 82460 21262 18485 18485 1458 1458 1458 3510813 3366374 3366374 748033 970385 1639730 1885103 2387763 2855488 X 1123050 510886 1123050 510886 3510813 3366374 1123050 376 0 1123426 612540 510886 5 0 5 0 5 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 1 1 MD CA VT FL MA LA RI OR 1 1 0 0 0 1 N/A MANDY GETZ 3016422505 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 1 CA 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 EDWIN WELLES 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 DIRECTOR 40.00 211839 46749 0 WILLEM-JAN RIBBERINK 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 SECRETARY 5.00 0 0 0 MICHEL VAN SWIETAN 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 TREASURER 5.00 0 0 0 SOROOSH SOROOSHIAN 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 DIRECTOR 5.00 0 0 0 GUY GELF 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 DIRECTOR 5.00 0 0 0 ANTONIA SEBASTIAN 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 DIRECTOR 5.00 0 0 0 BENJAMIN BALK 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 SCIENTIST V 40.00 177031 41321 0 CORNELIS NEDERHOFF 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 SCIENTIST V 40.00 175277 25970 0 ESKEDAR GEBREMEDHIN 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 SCIENTIST IV 40.00 155988 17013 0 BITA ANALIA 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 SCIENTIST IV 40.00 155988 11147 0 LAUREN SCHAMBACH 8601 GEORGIA AVE 508 SILVER SPRING MD 20910 SCIENTIST III-1 40.00 146480 16121 0 4 STICHTING DELTARES PO BOX 177 2600 MH DELFT BOOUSSINESQWEG NL RESEARCH/DEVELOPMENT 4515121 INFISYS 616 SALISBURY LANE KNOXVILLE TN 37934 RESEARCH/DEVELOPMENT 318937 ALLIANCE FOR GLOBAL WATER ADAPTATION 7640 NW HOODVIEW CIR CORVALLIS OR 97330 RESEARCH/DEVELOPMENT 142557 SWFT 15-1119 RAILWAY AVE CANMORE ALBERTA CA T1W 1R4 RESEARCH/DEVELOPMENT 87814 UNIVERSITY OF CINCINNATI 2600 CLIFTON AVE CINCINNATI OH 45221 RESEARCH/DEVELOPMENT 75000 0 1) SUPPORT TO THE US NATIONAL WEATHER SERVICE FOR THEIR FLOOD FORECASTING OPERATIONS CONSISTING OF SYSTEM SUPPORT AND HYDRODYNAMIC MODELING SUPPORT.2) SUPPORT TO THE TENNESSEE VALLEY AUTHORITY FOR THEIR RESERVOIR OPERATIONS AND POWER PLANT OPERATIONS CONSISTING OF HYDRO-THERMAL MODELING TO FORECAST IN STREAM TEMPERATURES, AS WELL AS STREAMFLOW FORECAST SYSTEM SUPPORT.3) COLLABORATIVE RESEARCH WITH THE US GEOLOGICAL SURVEY REGARDING NUMERICAL MODELLING IN RIVERS, ESTUARIES AND COASTAL WATERS INCLUDING SEDIMENT TRANSPORT, AND NUMERICAL METHODS FOR GROUND WATER MODELLING.4) SUPPORT TO THE BONNEVILLE POWER ADMINISTRATION FOR THEIR RESERVOIR OPERATIONS CONSISTING OF BOTH RESERVOIR OPTIMIZATION MODELING AND WATER SUPLY FORECASTING.5) COASTAL MODELING RESEARCH TO SUPPORT THE OFFICE OF NAVAL RESEARCH HURRICANE MODELING AND FORECASTING. 7421465 0 0 2223859 0 2223859 0 0 2223859 33358 2190501 109525 X 7421465 0 7421465 2008-09-22 X 109525 95703 87942 80682 373852 93096 81348 74751 68580 317774 7421465 4656543 5776811 4483830 22338649 0 0 0 0 0 7421465 4656543 5776811 4483830 22338649 0 0 0 7780736 5536421 5738844 4807660 23863661 7780736 5536421 5738844 4807660 23863661 0 0 X 0 0 PROGRAM SERVICE REVENUE 7780736 14 327 0 327 7780736 7781063 1 OUR CONTRACTS WITH FEDERAL AND STATE AGENCIES OFFERS THE OPPORTUNITY 1 TO EXTEND EXISTING METHODOLOGIES, TO DISSEMINATE KNOWLEDGE TO OTHERS, 1 TO DEFINE NEW ISSUES WHICH REQUIRE NEW RESEARCH. 0 0 0 0 0 0 0 0 0 0 ACCOUNTING 66074 0 0 82805 LEGAL FEES 22586 0 0 52710 SECURITY DEPOSITS 1458 1458 1458 PRIOR PERIOD ADJUSTMENT 612540 INSURANCE 152553 0 0 197624 POSTAGE AND DELIVERY 298 0 0 298 SUPPLIES 5507 0 0 6225 DUES, FEES AND LICENSES 30890 0 0 30890 DATA PROCESSING 59776 0 0 60650 OTHER EXPENSES 66940 0 0 66940 CURRENCY LOSS 66398 0 0 66398 PROGRAM SERVICE REVENUE 7780736 7780736 SUBCONTRACTS 5327599 0 0 5071299 OTHER PROFESSIONAL FEES 121312 0 0 121312