Undisclosed Money & NADC Supplemental Filers (2017-18 cycle)
Political money that cannot be traced to underlying individual donors in public filings: NADC Form B-5 (out-of-state contributors), Form B-7 (corporations, unions, trade associations, and 501(c)(4)s), Form B-9 (electioneering/major out-of-state), unitemized contributions ≤ $250, and IRS 501(c)(4) / 501(c)(6) organizations.
Period: 2017-18 cycle (Jan 2017 – Dec 2018) · NADC years: 2017, 2018 — from NADC legacy pre-2022 dataset: itemized transactions only, unitemized totals not included, paper-era data entry; coverage less complete than 2022+
NADC Supplemental Filer Spending
$8,118,600
681 filers (Form B-5 / B-7 / B-9)
Unitemized NADC Receipts (≤ $250)
$0
Below statutory itemization threshold
NE 501(c)(4) Social-Welfare Orgs
715
Donors not disclosed on IRS Form 990
NE 501(c)(6) Trade & Business Leagues
603
Chambers & industry associations
Top NADC Supplemental Filer (2018)
$1,738,067 reported on NADC supplemental filings (501(c)(4)).
Form B-5 / B-7 / B-9 Disclosure Rule
Entity Named · Underlying Donors Undisclosed
Corporations, unions, 501(c)(4)s, and trade associations report the expenditure or contribution itself on Form B-7, without itemizing their general-treasury funders.
Lobbyist Principal Cross-Reference
680 Active Supplemental Filers in 2018
Cross-linked against NADC Lobbyist Principal registrations (`lforma.txt`) and the IRS Exempt Organizations Business Master File.
NADC Supplemental Filers (Form B-5/B-7/B-9) & NE 501(c)(4)/(c)(6) Registry (2018) · Verified public filings (880 rows ready)
Methodology — How Plains Ledger Classifies Undisclosed & Supplemental-Filer Money
Under the Nebraska Political Accountability and Disclosure Act, corporations, labor unions, industry/trade associations, and non-committee organizations that make political contributions or independent expenditures file supplemental reports (Form B-7, Form B-5, or Form B-9) rather than full PAC campaign statements. Plains Ledger resolves each supplemental filer against the IRS Exempt Organizations Business Master File (`501(c)(4)`, `501(c)(5)`, `501(c)(6)`) and NADC Lobbyist Principal records while labeling the underlying source of funds as undisclosed · as of NADC legacy pre-2022 dataset (nadc_data.zip, data last loaded 2022-07-11; itemized transactions only, years 2017+2018, split by transaction date; downloaded 2026-10-22); ProPublica Nonprofit Explorer API, pulled 2026-10-23.
Top NADC Supplemental Filers (Form B-5 / B-7 / B-9 Corporations, Unions, Trade Associations & 501c4s) in 2018
| Supplemental Filer | Classified Entity Type & Basis | NADC Filing Category & ID | Reported Spending / Outflows |
|---|---|---|---|
| FAIRNESS PROJECT, THE | 501(c)(4) | Supplemental Filer (legacy Form B-7)NADC #18CUA09185 | $1,738,067 |
| NE STATE EDUCATION ASSOCIATION NADC Lobbyist Principal Industry: Professional Organization for Nebraska Public School Employees | 501(c)(5) union | Supplemental Filer (legacy Form B-7)NADC #99CUA00350 | $339,898 |
| SWAIN CONSTRUCTION INC. | Business | Supplemental Filer (legacy Form B-7)NADC #99CUA03031 | $323,000 |
| BOLD ALLIANCE, INC. | 501(c)(4) | Supplemental Filer (legacy Form B-7)NADC #17CUA08882 | $216,679 |
| NE APPLESEED CENTER FOR LAW IN THE PUBLIC INTEREST NADC Lobbyist Principal Industry: law & policy non-profit organization | 501(c)(3) | Supplemental Filer (legacy Form B-7)NADC #14CUA07643 | $187,041 |
| REFORM FOR NEBRASKA'S FUTURE | Business | Supplemental Filer (legacy Form B-7)NADC #18CON27940 | $170,000 |
| UNION PACIFIC RAILROAD COMPANY | 501(c)(5) union | Supplemental Filer (legacy Form B-7)NADC #99CUA00078 | $131,850 |
| CENTENE CORPORATION (63105) | Business | Supplemental Filer (legacy Form B-7)NADC #13CUA07448 | $124,000 |
| GREEN PLAINS, INC. | Business | Supplemental Filer (legacy Form B-7)NADC #09CUA06352 | $105,000 |
| HAWKINS CONSTRUCTION COMPANY | Business | Supplemental Filer (legacy Form B-7)NADC #99CUA00109 | $102,575 |
| NEBRASKA FARM BUREAU SERVICES, INC. | 501(c)(6) trade group | Supplemental Filer (legacy Form B-7)NADC #17CUA08951 | $101,000 |
| CHARTER COMMUNICATIONS, INC. | Business | Supplemental Filer (legacy Form B-7)NADC #16CUA08867 | $99,100 |
| MILLARD PUBLIC SCHOOLS FOUNDATION | 501(c)(3) | Supplemental Filer (legacy Form B-7)NADC #13CON19304 | $89,500 |
| NE LEAGUE OF CONSERVATION VOTERS NADC Lobbyist Principal Industry: voter engagement on issues of conservation and the environment | 501(c)(4) | Supplemental Filer (legacy Form B-7)NADC #16CUA08819 | $80,350 |
| KIEWIT CORPORATION NADC Lobbyist Principal Industry: Construction, Engineering, Mining | Business | Supplemental Filer (legacy Form B-7)NADC #99CUA00081 | $75,000 |
| FIRST NATIONAL OF NEBRASKA | Business | Supplemental Filer (legacy Form B-7)NADC #99CUA00117 | $72,250 |
| I.B.E.W. LOCAL UNION NO. 22 | 501(c)(5) union | Supplemental Filer (legacy Form B-7)NADC #99CUA00225 | $70,000 |
| REYNOLDS AMERICAN INC. / RAI SERVICES | Business | Supplemental Filer (legacy Form B-7)NADC #07CUA04650 | $66,000 |
| NE CHIROPRACTIC PHYSICIANS ASSOCIATION, INC. NADC Lobbyist Principal Industry: chiropractic | 501(c)(6) trade group | Supplemental Filer (legacy Form B-7)NADC #99CUA00190 | $65,000 |
| AFLAC (GA) NADC Lobbyist Principal Industry: health insurance | Business | Supplemental Filer (legacy Form B-7)NADC #99CUA02918 | $60,400 |
| ALTRIA CLIENT SERVICES LLC & ITS AFFILIATES | Business | Supplemental Filer (legacy Form B-7)NADC #09CUA06293 | $58,000 |
| COX COMMUNICATIONS, INC. NADC Lobbyist Principal Industry: telecom | Business | Supplemental Filer (legacy Form B-7)NADC #99CUA00739 | $57,000 |
| CARPENTERS INTERIOR SYSTEMS UNION LOCAL 1306 | 501(c)(5) union | Supplemental Filer (legacy Form B-7)NADC #12CUA07166 | $56,750 |
| NATIONAL ASSOCIATION OF REALTORS FUND | 501(c)(6) trade group | Supplemental Filer (legacy Form B-7)NADC #14CUA08041 | $54,881 |
| CENTER FOR RURAL AFFAIRS THE NADC Lobbyist Principal Industry: non-profit | 501(c)(3) | Supplemental Filer (legacy Form B-7)NADC #99CUA02166 | $52,706 |
| FARMERS & MERCHANTS INVESTMENT INC. (UNION BANK) | 501(c)(5) union | Supplemental Filer (legacy Form B-7)NADC #99CUA03014 | $52,500 |
| BNSF RAILWAY COMPANY | Business | Supplemental Filer (legacy Form B-7)NADC #99CUA00805 | $52,095 |
| AT & T, INC. NADC Lobbyist Principal Industry: telecommunications company | Business | Supplemental Filer (legacy Form B-7)NADC #08CUA05160 | $50,950 |
| WESTSIDE COMMUNITY SCHOOLS FOUNDATION, INC. | 501(c)(3) | Supplemental Filer (legacy Form B-7)NADC #08CUA04711 | $50,000 |
| GREATER OMAHA CHAMBER OF COMMERCE NADC Lobbyist Principal Industry: Trade Organization | 501(c)(6) trade group | Supplemental Filer (legacy Form B-7)NADC #99CUA00921 | $50,000 |
| BLUE CROSS AND BLUE SHIELD OF NEBRASKA NADC Lobbyist Principal Industry: insurance/healthcare | Business | Supplemental Filer (legacy Form B-7)NADC #99CUA00070 | $49,660 |
| AMERICAN FEDERATION OF STATE, COUNTY & MUNICIPAL EMPLOYEES | 501(c)(5) union | Supplemental Filer (legacy Form B-7)NADC #99CUA01007 | $49,360 |
| KUM & GO | Business | Supplemental Filer (legacy Form B-7)NADC #08CON14652 | $46,650 |
| UNITEDHEALTH GROUP, INC. | Business | Supplemental Filer (legacy Form B-7)NADC #12CUA06867 | $45,400 |
| TYSON FOODS, INC. | Business | Supplemental Filer (legacy Form B-7)NADC #99CON06054 | $45,000 |
| NEXTERA ENERGY RESOURCES, LLC (78701) NADC Lobbyist Principal Industry: Wind Energy Producer | Business | Supplemental Filer (legacy Form B-7)NADC #18CUA09382 | $44,500 |
| KISSEL KOHOUT ES ASSOCIATES LLC | Business | Supplemental Filer (legacy Form B-7)NADC #99CON06830 | $44,260 |
| WERNER ENTERPRISES, INC. NADC Lobbyist Principal Industry: Transportation | Business | Supplemental Filer (legacy Form B-7)NADC #99CUA00553 | $42,500 |
| PFIZER, INC. NADC Lobbyist Principal Industry: pharmaceuticals | Business | Supplemental Filer (legacy Form B-7)NADC #06CUA04348 | $42,250 |
| INTERNATIONAL ASSN OF FIRE FIGHTERS LOCAL 644 | 501(c)(5) union | Supplemental Filer (legacy Form B-7)NADC #14CUA08075 | $41,477 |
| ACLU OF NEBRASKA, INC. NADC Lobbyist Principal Industry: protect & promote civil liberties | 501(c)(4) | Supplemental Filer (legacy Form B-7)NADC #08CUA04936 | $28,290 |
| HOLLAND CHILDRENS MOVEMENT | 501(c)(4) | Supplemental Filer (legacy Form B-7)NADC #14CUA08063 | $20,000 |
| NEBRASKA CIVIC ENGAGEMENT TABLE | 501(c)(3) | Supplemental Filer (legacy Form B-7)NADC #18CUA09230 | $4,011 |
Sample of Nebraska 501(c)(4) Social-Welfare Organizations (with NADC Cross-Reference)
| Organization | City | EIN | NADC Filer / Lobbyist Cross-Ref | Disclosure Status |
|---|---|---|---|---|
| Delta Dental Of Nebraska | Omaha | EIN 47-0685003 · 990 ↗ | — | donors undisclosed |
| Hall County Livestock Improvement Assn Inc | Grand Island | EIN 47-0399395 · 990 ↗ | — | donors undisclosed |
| Nebraskans For Reproductive Freedom | Lincoln | EIN 92-3436253 · 990 ↗ | — | donors undisclosed |
| Nebraska Municipal Power Pool | Lincoln | EIN 47-0575470 · 990 ↗ | — | donors undisclosed |
| Nebraska Donor Alliance | Lincoln | EIN 93-3165832 · 990 ↗ | — | donors undisclosed |
| League Of Nebraska Municipalities | Lincoln | EIN 47-0385019 · 990 ↗ | — | donors undisclosed |
| Nebraska Association Of County Officials | Lincoln | EIN 47-0522159 · 990 ↗ | — | donors undisclosed |
| Nebraskaland Days Inc | North Platte | EIN 47-0521025 · 990 ↗ | — | donors undisclosed |
| Twin Cities Development Association Inc | Scottsbluff | EIN 47-6036153 · 990 ↗ | — | donors undisclosed |
| Second House Collaborative | Lincoln | EIN 92-2387975 · 990 ↗ | — | donors undisclosed |
| Hastings Economic Development Corporation | Hastings | EIN 47-0551577 · 990 ↗ | — | donors undisclosed |
| Nebraska Golf Association | Omaha | EIN 23-7073030 · 990 ↗ | — | donors undisclosed |
| Nebraka Votes | Lincoln | EIN 84-3398872 · 990 ↗ | — | donors undisclosed |
| Irvington Volunteer Fire Department Incorporated | Omaha | EIN 51-0209524 · 990 ↗ | — | donors undisclosed |
| Nebraska State Volunteer Firemens Association | Milford | EIN 47-0249988 · 990 ↗ | — | donors undisclosed |
| Friends Of Woods Tennis Inc | Lincoln | EIN 26-4037198 · 990 ↗ | — | donors undisclosed |
| Platte County Agricultural Society | Columbus | EIN 47-0376462 · 990 ↗ | — | donors undisclosed |
| Nmm | Lincoln | EIN 87-2460887 · 990 ↗ | — | donors undisclosed |
| Planned Parenthood Voters Of Nebraska | Omaha | EIN 47-0762497 · 990 ↗ | — | donors undisclosed |
| Nebraska Conservation Voters | Lincoln | EIN 03-0402828 · 990 ↗ | — | donors undisclosed |
| Peo Sisterhood International Chapter | Waverly | EIN 47-6031043 · 990 ↗ | — | donors undisclosed |
| American Civil Liberties Union | Lincoln | EIN 23-7093415 · 990 ↗ | — | donors undisclosed |
| Your Nebraska | Omaha | EIN 99-0749161 · 990 ↗ | — | donors undisclosed |
| Mccook Economic Development Corporation | Mccook | EIN 47-0685662 · 990 ↗ | — | donors undisclosed |
| Oneill Area Chamber Of Commerce Inc | Oneill | EIN 47-0527399 · 990 ↗ | — | donors undisclosed |
| Boulevard Village Inc | Norfolk | EIN 23-7071580 · 990 ↗ | — | donors undisclosed |
| Central City Municipal Facilities Corp | Central City | EIN 26-2156787 · 990 ↗ | — | donors undisclosed |
| Cozad Development Corporation | Cozad | EIN 47-0642009 · 990 ↗ | — | donors undisclosed |
| Nebraska Appleseed Action Fund | Lincoln | EIN 83-2976095 · 990 ↗ | — | donors undisclosed |
| Kearney Volunteer Fire Department | Kearney | EIN 47-6033637 · 990 ↗ | — | donors undisclosed |
| Bold Alliance Inc | Omaha | EIN 27-0637437 · 990 ↗ | — | donors undisclosed |
| Rudge Memorial Home Testamentary Trust | Lincoln | EIN 47-6026339 · 990 ↗ | — | donors undisclosed |
| Thayer County Economic Development Alliance Inc | Hebron | EIN 26-0042799 · 990 ↗ | — | donors undisclosed |
| Nebraska Rural Community Schools Association | Lincoln | EIN 47-0665134 · 990 ↗ | — | donors undisclosed |
| Niobrara Development Incorporated | Niobrara | EIN 23-7265863 · 990 ↗ | — | donors undisclosed |
| Nebraska Community College Association | Lincoln | EIN 47-0634861 · 990 ↗ | — | donors undisclosed |
| Nebraska Diplomats Inc | Lincoln | EIN 47-6032343 · 990 ↗ | — | donors undisclosed |
| Quad County Golf Association Inc | Humboldt | EIN 47-0758290 · 990 ↗ | — | donors undisclosed |
| Ponca State Park Golf Club Inc | Ponca | EIN 47-0783902 · 990 ↗ | — | donors undisclosed |
| Black In Action Collective | Omaha | EIN 99-3054588 · 990 ↗ | — | donors undisclosed |
| Holland Childrens Movement | Omaha | EIN 46-3963129 · 990 ↗ | — | donors undisclosed |
| Fillmore County Development Corp | Geneva | EIN 47-0721337 · 990 ↗ | — | donors undisclosed |
| North Omaha Intergenerational Campus Inc | Omaha | EIN 46-4690725 · 990 ↗ | — | donors undisclosed |
| University Program Council University Of Nebraska - Lincoln | Lincoln | EIN 27-1324754 · 990 ↗ | — | donors undisclosed |
| Nebraska Right To Life | Lincoln | EIN 47-0550845 · 990 ↗ | — | donors undisclosed |
| Cheer Athletic Omaha Booster Club | Omaha | EIN 92-2061078 · 990 ↗ | — | donors undisclosed |
| Veterans Club Ord Nebraska | Ord | EIN 47-0367954 · 990 ↗ | — | donors undisclosed |
| Kiwanis International Inc | Wahoo | EIN 42-0726999 · 990 ↗ | — | donors undisclosed |
| Millard Swim Club Inc | Gretna | EIN 47-0559884 · 990 ↗ | — | donors undisclosed |
| Nebraskans For Better Governance | Norfolk | EIN 92-1063360 · 990 ↗ | — | donors undisclosed |
Sample of Nebraska 501(c)(6) Trade Associations & Chambers (with NADC Cross-Reference)
| Organization | City | EIN | NADC Filer / Lobbyist Cross-Ref | Disclosure Status |
|---|---|---|---|---|
| Nebraska Soybean Board | Lincoln | EIN 47-0792418 · 990 ↗ | — | donors undisclosed |
| Nebraska Hospital Association | Lincoln | EIN 47-0384546 · 990 ↗ | — | donors undisclosed |
| New Better Business Bureau Inc | Omaha | EIN 47-0258465 · 990 ↗ | — | donors undisclosed |
| Np Area Chamber Of Commerce Commerce & Development Corp Inc | North Platte | EIN 47-0254640 · 990 ↗ | — | donors undisclosed |
| Board Of Certification Inc | Omaha | EIN 56-1662638 · 990 ↗ | — | donors undisclosed |
| Nebraska Bankers Association Inc | Lincoln | EIN 47-0248240 · 990 ↗ | — | donors undisclosed |
| Lincoln Chamber Of Commerce | Lincoln | EIN 47-0221590 · 990 ↗ | — | donors undisclosed |
| Nebraska Chamber Of Commerce & Industry | Lincoln | EIN 47-0095161 · 990 ↗ | — | donors undisclosed |
| Nebraska Assn Of School Boards | Lincoln | EIN 47-0408744 · 990 ↗ | — | donors undisclosed |
| Nebraska State Bar Association | Lincoln | EIN 47-0249952 · 990 ↗ | — | donors undisclosed |
| Nebraska State Medical Association | Lincoln | EIN 47-0372108 · 990 ↗ | — | donors undisclosed |
| Nebraska Horsemens Benevolent & Protective Association Inc | Lincoln | EIN 47-0721298 · 990 ↗ | — | donors undisclosed |
| Greater Omaha Chamber Of Commerce | Omaha | EIN 47-0258610 · 990 ↗ | — | donors undisclosed |
| Nebraska Health Care Association Inc | Lincoln | EIN 47-0488922 · 990 ↗ | — | donors undisclosed |
| Kearney Visitors Bureau Inc | Kearney | EIN 86-1176325 · 990 ↗ | — | donors undisclosed |
| All Baby & Child | Lincoln | EIN 11-3681922 · 990 ↗ | — | donors undisclosed |
| Nebraska Center For Excellence In Electronics Inc | Lincoln | EIN 47-0813390 · 990 ↗ | — | donors undisclosed |
| Downtown Lincoln Bid Association | Lincoln | EIN 47-0837543 · 990 ↗ | — | donors undisclosed |
| Nebraska Council Of School Adminstrators | Lincoln | EIN 47-0530908 · 990 ↗ | — | donors undisclosed |
| American Association Of Psychiatric Pharmacists | Lincoln | EIN 47-0808612 · 990 ↗ | — | donors undisclosed |
| Downtown Lincoln Association | Lincoln | EIN 47-0606379 · 990 ↗ | — | donors undisclosed |
| Lincoln Chamber Economic Development Corporation | Lincoln | EIN 47-6036618 · 990 ↗ | — | donors undisclosed |
| Gothenburg Improvement Company | Gothenburg | EIN 47-0662728 · 990 ↗ | — | donors undisclosed |
| Nebraska Rural Electric Association | Lincoln | EIN 47-0394033 · 990 ↗ | — | donors undisclosed |
| Nebraska Section Professional Golfers Association Of America Inc | Lincoln | EIN 47-0693768 · 990 ↗ | — | donors undisclosed |
| Nebraska Realtors Association | Lincoln | EIN 47-0406412 · 990 ↗ | — | donors undisclosed |
| National Council On Weights And Measures | Lincoln | EIN 54-1895916 · 990 ↗ | — | donors undisclosed |
| Nebr Pharmacists Assoc | Lincoln | EIN 47-0249555 · 990 ↗ | — | donors undisclosed |
| Nebraska Trucking Association Inc | Lincoln | EIN 47-0248670 · 990 ↗ | — | donors undisclosed |
| Nebraska Rural Water Association Inc | Wahoo | EIN 47-0600532 · 990 ↗ | — | donors undisclosed |
| Grand Island Area Economic Development Corporation | Grand Island | EIN 47-6028912 · 990 ↗ | — | donors undisclosed |
| Nebraska Association Of Resources Districts | Lincoln | EIN 47-0549185 · 990 ↗ | — | donors undisclosed |
| Columbus Area Chamber Of Commerce Inc | Columbus | EIN 47-0130240 · 990 ↗ | — | donors undisclosed |
| Omaha Area Board Of Realtors | Omaha | EIN 47-0259650 · 990 ↗ | — | donors undisclosed |
| Merrick County Development Corp | Central City | EIN 47-0772569 · 990 ↗ | — | donors undisclosed |
| Hall County Convention And Visitors Bureau Inc | Grand Island | EIN 20-0075114 · 990 ↗ | — | donors undisclosed |
| Nebraska Chapter Associated General Contractors Of America Inc | Lincoln | EIN 47-0095150 · 990 ↗ | — | donors undisclosed |
| Associated Builders & Contractors Inc | Lincoln | EIN 47-0557980 · 990 ↗ | — | donors undisclosed |
| Golf Course Builders Of America | Lincoln | EIN 23-7121106 · 990 ↗ | — | donors undisclosed |
| Nebraska Cooperative Council | Lincoln | EIN 47-0352001 · 990 ↗ | — | donors undisclosed |
Listing in the IRS 501(c)(4)/(c)(6) tables means only that the organization is registered under that tax status; NADC cross-references indicate where the organization also filed campaign or lobbying reports with the NADC.