San Mateo County Democratic Central Committee
$4.73M
2025-2026 cycle
San Mateo County Democratic Central Committee is a political services vendor. In the 2025-2026 cycle San Mateo County Democratic Central Committee was paid $4.73M across 42 client committees, of which $106K flowed through Independent Expenditures rather than direct committee payments.
Part I Identity
Stable facts about this entity. These figures do not change as you adjust the timeframe in Part II.
Source split
$4.73M
=
$4.63M
(Schedule B)
+
$106K
(Independent Expenditures)
| Schedule B direct committee payments |
$4,627,972 | 289 rows | 97.8% |
| Independent Expenditures money this entity spent supporting candidates, NOT a committee paying them |
$106,100 | 15 rows | 2.2% |
- Activity span ALL TIME
- Mar 25, 2000 → May 11, 2026
- spans 26.1 years
- Disbursements ALL TIME
- 289
- Schedule B + IE rows
- Client committees ALL TIME
- 42
- distinct payers
Part II Activity in selected window
One timeframe control governs all three panels below. Change it once and the trajectory, top buyers, and party breakdown all update together.
Spend trajectory
Monthly spend to this vendor over the last 12 months.
Jun 2025
May 2026
$519K
across 12 months
Top buyers
Two views of the same data — diagram and table share the time-window control and the same top-buyers slice. Click "View all buyers in research" to drill in with the matching date range.
No buyer activity in this window.
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 3 months · top 5
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| 882509 882509 |
$86,800 | 5 |
| 780657 780657 |
$49,000 | 1 |
| UNITED DOMESTIC WORKERS OF AMERICA ACTION FUND 1302384 |
$35,000 | 1 |
| PAPAN FOR ASSEMBLY 2026 1477408 |
$1,300 | 1 |
| LIEBER FOR BOARD OF EQUALIZATION 2026; SALLY 1478243 |
$1,000 | 1 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 6 months · top 10
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| 882509 882509 |
$284,230 | 16 |
| 780657 780657 |
$49,000 | 1 |
| WORKING FOR WORKING AMERICANS SPONSORED BY UNITED BROTHERHOOD OF CARPENTERS 1332378 |
$49,000 | 1 |
| BAY AREA LEGISLATIVE LEADERS PAC 1377585 |
$49,000 | 1 |
| 870169 870169 |
$49,000 | 1 |
| UNITED DOMESTIC WORKERS OF AMERICA ACTION FUND 1302384 |
$35,000 | 1 |
| PAPAN FOR ASSEMBLY 2026 1477408 |
$1,480 | 3 |
| LIEBER FOR BOARD OF EQUALIZATION 2026; SALLY 1478243 |
$1,000 | 1 |
| STEFANI FOR ASSEMBLY 2026; CATHERINE 1477293 |
$750 | 2 |
| 831628 831628 |
$0 | 2 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 12 months · top 10
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| 882509 882509 |
$284,614 | 19 |
| 780657 780657 |
$49,000 | 1 |
| WORKING FOR WORKING AMERICANS SPONSORED BY UNITED BROTHERHOOD OF CARPENTERS 1332378 |
$49,000 | 1 |
| BAY AREA LEGISLATIVE LEADERS PAC 1377585 |
$49,000 | 1 |
| 870169 870169 |
$49,000 | 1 |
| UNITED DOMESTIC WORKERS OF AMERICA ACTION FUND 1302384 |
$35,000 | 1 |
| PAPAN FOR ASSEMBLY 2026 1477408 |
$1,480 | 3 |
| LIEBER FOR BOARD OF EQUALIZATION 2026; SALLY 1478243 |
$1,000 | 1 |
| STEFANI FOR ASSEMBLY 2026; CATHERINE 1477293 |
$750 | 2 |
| 831628 831628 |
$0 | 2 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 18 months · top 10
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| 882509 882509 |
$334,614 | 23 |
| 780657 780657 |
$49,000 | 1 |
| WORKING FOR WORKING AMERICANS SPONSORED BY UNITED BROTHERHOOD OF CARPENTERS 1332378 |
$49,000 | 1 |
| BAY AREA LEGISLATIVE LEADERS PAC 1377585 |
$49,000 | 1 |
| 870169 870169 |
$49,000 | 1 |
| 831628 831628 |
$49,000 | 3 |
| UNITED DOMESTIC WORKERS OF AMERICA ACTION FUND 1302384 |
$35,000 | 1 |
| PAPAN FOR ASSEMBLY 2026 1477408 |
$1,730 | 4 |
| LIEBER FOR BOARD OF EQUALIZATION 2026; SALLY 1478243 |
$1,000 | 1 |
| STEFANI FOR ASSEMBLY 2026; CATHERINE 1477293 |
$750 | 2 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 24 months · top 10
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| 882509 882509 |
$611,900 | 34 |
| 831628 831628 |
$94,500 | 4 |
| WORKING FOR WORKING AMERICANS SPONSORED BY UNITED BROTHERHOOD OF CARPENTERS 1332378 |
$94,500 | 2 |
| 870169 870169 |
$94,500 | 2 |
| BAY AREA LEGISLATIVE LEADERS PAC 1377585 |
$49,000 | 1 |
| 780657 780657 |
$49,000 | 1 |
| 972104 972104 |
$45,500 | 1 |
| UNITED DOMESTIC WORKERS OF AMERICA ACTION FUND 1302384 |
$35,000 | 1 |
| BECKER FOR SENATE 2024; JOSH 1435512 |
$3,500 | 2 |
| PAPAN FOR ASSEMBLY 2024 1456580 |
$2,000 | 1 |
By party
Revenue by party
D · 100%
R · 0%
| Party | Amount | % |
|---|---|---|
| Democratic | $3,522 | 0.07% |
| Republican | $0 | 0.00% |
| Non-partisan | $4,730,550 | 99.93% |
Part III Reference tables
Full all-time and cycle-to-date data.
Cycle-over-cycle trajectory
current cycle earlier election cycle off-cycle year quarterly · 10 years
Per-quarter totals
| Year | Q | Cycle | Total | Txns | Top buyer · share | Top category · share | Cum. (cycle) | YoY % |
|---|---|---|---|---|---|---|---|---|
| 2017 | Q1 | 2016 | $35K | 1 | 882509 100% | Other / Unclassified 100% | $35K | — |
| 2017 | Q2 | 2016 | $984 | 1 | 882509 100% | Admin & Office 100% | $36K | — |
| 2017 | Q3 | 2016 | $1K | 4 | 882509 50% | Other / Unclassified 100% | $37K | — |
| 2018 | Q1 | 2018 | $750 | 3 | 882509 100% | Other / Unclassified 100% | $750 | — |
| 2018 | Q2 | 2018 | $248K | 11 | 882509 100% | Other / Unclassified 100% | $249K | — |
| 2018 | Q3 | 2018 | $138K | 9 | 882509 81% | Other / Unclassified 99% | $387K | — |
| 2018 | Q4 | 2018 | $37K | 1 | 882509 100% | Other / Unclassified 100% | $423K | — |
| 2019 | Q1 | 2018 | $250 | 1 | 882509 100% | Other / Unclassified 100% | $424K | -99% |
| 2019 | Q1 | 2020 | $374 | 1 | CALIFORNIA DEMOCRATIC PARTY 100% | Field & Voter Contact 100% | $374 | — |
| 2019 | Q3 | 2018 | $600 | 2 | 882509 100% | Other / Unclassified 100% | $424K | -44% |
| 2019 | Q4 | 2018 | $116K | 3 | 882509 100% | Other / Unclassified 100% | $541K | — |
| 2020 | Q1 | 2020 | $104K | 6 | 882509 100% | Other / Unclassified 99% | $105K | +13829% |
| 2020 | Q3 | 2020 | $112K | 7 | 882509 100% | Other / Unclassified 98% | $216K | -19% |
| 2020 | Q4 | 2020 | $104K | 4 | 882509 100% | Other / Unclassified 99% | $320K | +184% |
| 2021 | Q3 | 2020 | $84K | 3 | 882509 51% | Other / Unclassified 100% | $404K | +13817% |
| 2021 | Q4 | 2020 | $162K | 4 | 882509 50% | Other / Unclassified 100% | $566K | +39% |
| 2022 | Q1 | 2022 | $2K | 2 | 882509 100% | Other / Unclassified 100% | $2K | -99% |
| 2022 | Q2 | 2022 | $371K | 15 | 882509 56% | Other / Unclassified 100% | $372K | — |
| 2022 | Q3 | 2022 | $165K | 7 | 882509 50% | Other / Unclassified 100% | $537K | +48% |
| 2023 | Q2 | 2022 | $93K | 5 | 882509 51% | Other / Unclassified 99% | $630K | — |
| 2023 | Q3 | 2022 | $92K | 3 | WORKING FOR WORKING AMERICA… 49% | Other / Unclassified 99% | $722K | +10% |
| 2023 | Q4 | 2022 | $92K | 3 | 882509 51% | Other / Unclassified 100% | $814K | -43% |
| 2024 | Q1 | 2024 | $750 | 1 | 882509 100% | Print & Mail 100% | $750 | -50% |
| 2024 | Q2 | 2024 | $137K | 3 | 882509 67% | Other / Unclassified 100% | $137K | -63% |
| 2024 | Q3 | 2024 | $328K | 13 | 882509 57% | Other / Unclassified 100% | $465K | +99% |
| 2024 | Q4 | 2024 | $1K | 1 | 882509 100% | Print & Mail 100% | $466K | — |
| 2025 | Q2 | 2024 | $100K | 7 | 882509 50% | Other / Unclassified 100% | $566K | +7% |
| 2025 | Q4 | 2024 | $386K | 10 | 882509 50% | Other / Unclassified 100% | $952K | +320% |
| 2026 | Q1 | 2026 | $51K | 10 | 882509 98% | Other / Unclassified 4% | $51K | +6748% |
| 2026 | Q2 | 2026 | $173K | 9 | 882509 50% | Print & Mail 0% | $224K | +27% |
Revenue by service category
No category revenue in this window.
Per-category breakdown · cycle-to-date
| Category | Total spend | Txns | Avg check | % of total | Top buyer · share | Last paid |
|---|---|---|---|---|---|---|
| Other / Unclassified | $4,213,964 | 233 | $18K | 99.2% | 882509 73% | 3mo ago |
| Contributions & Transfers | $15,400 | 12 | $1K | 0.4% | 882509 395% | 5mo ago |
| Print & Mail | $9,750 | 11 | $886 | 0.2% | 882509 72% | 7w ago |
| Travel & Events | $7,750 | 6 | $1K | 0.2% | 882509 55% | 2y ago |
| Software & Tech | $3,600 | 1 | $4K | 0.1% | 882509 100% | 12y ago |
| Fundraising | $1,370 | 3 | $457 | 0.0% | 882509 100% | 7mo ago |
| Admin & Office | $1,032 | 2 | $516 | 0.0% | 882509 100% | 9y ago |
| Field & Voter Contact | $374 | 1 | $374 | 0.0% | CALIFORNIA DEMOCRATIC PARTY 100% | 7y ago |
| Legal & Compliance | -$4,328 | 9 | $-481 | -0.1% | 741666 0% | 7mo ago |
Client retention
Sticky-relationship signal: how many clients keep coming back across cycles vs one-time buyers.
3
Anchor clients 3+ cycles
$3,719,093 · 80% of revenue
9
Repeat clients 2 cycles
$544,740 · 12% of revenue
30
One-time clients 1 cycle
$364,140 · 8% of revenue
Top 3 anchor clients · all-time
Geographic concentration
Where this vendor's clients are based — federal committees by state, plus implicit jurisdiction for CA and TX state filers.
| State | Total spend | % of revenue | Clients | |
|---|---|---|---|---|
| CA | $4,627,894 | 100.0% | 41 | |
| TX | $78 | 0.0% | 1 |
Notable disbursements
5 largest all-time · 5 largest in the current cycle · 5 most recent. Each row earns its place.
| Reason | Date | Filer | Category | Purpose | Amount |
|---|---|---|---|---|---|
| Largest all-time | 2025-12-22 | BAY AREA LEGISLATIVE LEADERS PAC | Other / Unclassified | — | $49,000 |
| Largest all-time | 2026-05-11 | 882509 | — | — | $49,000 |
| Largest all-time | 2026-02-20 | 882509 | — | — | $49,000 |
| Largest all-time | 2026-05-11 | 780657 | — | — | $49,000 |
| Largest all-time | 2025-04-10 | 831628 | Other / Unclassified | — | $49,000 |
| Largest this cycle | 2026-05-06 | 882509 | — | — | $35,000 |
| Largest this cycle | 2026-05-06 | UNITED DOMESTIC WORKERS OF AMERICA ACTION FUND | — | — | $35,000 |
| Recent | 2026-04-24 | PAPAN FOR ASSEMBLY 2026 | — | — | $1,300 |