Probolsky Research, LLC
$679K
2025-2026 cycle
Probolsky Research, LLC is a political services vendor. In the 2025-2026 cycle Probolsky Research, LLC was paid $679K across 51 client committees, of which $108K 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
$679K
=
$571K
(Schedule B)
+
$108K
(Independent Expenditures)
| Schedule B direct committee payments |
$570,850 | 89 rows | 84.1% |
| Independent Expenditures money this entity spent supporting candidates, NOT a committee paying them |
$107,835 | 6 rows | 15.9% |
- Activity span ALL TIME
- Nov 1, 2002 → May 22, 2026
- spans 23.6 years
- Disbursements ALL TIME
- 89
- Schedule B + IE rows
- Client committees ALL TIME
- 51
- 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
$70K
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 1
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| KOUNALAKIS FOR TREASURER 2026; ELENI 1483008 |
$3,500 | 1 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 6 months · top 1
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| KOUNALAKIS FOR TREASURER 2026; ELENI 1483008 |
$3,500 | 1 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 12 months · top 5
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| NEWSOM BALLOT MEASURE COMMITTEE; SAFETY FOR ALL, 1380675 |
$46,000 | 1 |
| RICHMOND WORKING FAMILIES, A COALITION OF UNIONS AND COMMUNITY GROUPS 1390351 |
$15,000 | 1 |
| KOUNALAKIS FOR TREASURER 2026; ELENI 1483008 |
$3,500 | 1 |
| BARRERA FOR SUPERINTENDENT OF PUBLIC INSTRUCTION 2026 1478161 |
$2,900 | 1 |
| ALLEN FOR INSURANCE COMMISSIONER 2026; BEN 1483889 |
$2,400 | 1 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 18 months · top 5
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| NEWSOM BALLOT MEASURE COMMITTEE; SAFETY FOR ALL, 1380675 |
$46,000 | 1 |
| RICHMOND WORKING FAMILIES, A COALITION OF UNIONS AND COMMUNITY GROUPS 1390351 |
$15,000 | 1 |
| KOUNALAKIS FOR TREASURER 2026; ELENI 1483008 |
$3,500 | 1 |
| BARRERA FOR SUPERINTENDENT OF PUBLIC INSTRUCTION 2026 1478161 |
$2,900 | 1 |
| ALLEN FOR INSURANCE COMMISSIONER 2026; BEN 1483889 |
$2,400 | 1 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 24 months · top 5
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| NEWSOM BALLOT MEASURE COMMITTEE; SAFETY FOR ALL, 1380675 |
$46,000 | 1 |
| RICHMOND WORKING FAMILIES, A COALITION OF UNIONS AND COMMUNITY GROUPS 1390351 |
$15,000 | 1 |
| KOUNALAKIS FOR TREASURER 2026; ELENI 1483008 |
$3,500 | 1 |
| BARRERA FOR SUPERINTENDENT OF PUBLIC INSTRUCTION 2026 1478161 |
$2,900 | 1 |
| ALLEN FOR INSURANCE COMMISSIONER 2026; BEN 1483889 |
$2,400 | 1 |
By party
Revenue by party
D · 82%
R · 18%
| Party | Amount | % |
|---|---|---|
| Democratic | $20,349 | 3.00% |
| Republican | $4,556 | 0.67% |
| Non-partisan | $653,780 | 96.33% |
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 · 7 years
Per-quarter totals
| Year | Q | Cycle | Total | Txns | Top buyer · share | Top category · share | Cum. (cycle) | YoY % |
|---|---|---|---|---|---|---|---|---|
| 2018 | Q3 | 2018 | $1K | 1 | CALIFORNIANS FOR SAFE DRINK… 100% | Other / Unclassified 100% | $1K | — |
| 2018 | Q4 | 2018 | $16K | 6 | GAINES FOR SENATE 2020; BETH 63% | Other / Unclassified 85% | $17K | — |
| 2020 | Q2 | 2020 | $8K | 1 | CLEAN COASTS, CLEAN WATER, … 100% | Other / Unclassified 100% | $8K | — |
| 2020 | Q3 | 2020 | $18K | 1 | CALIFORNIANS FOR EQUAL RIGH… 100% | Other / Unclassified 100% | $25K | +1358% |
| 2021 | Q1 | 2020 | $5K | 1 | CLEAN COASTS, CLEAN WATER, … 100% | Other / Unclassified 100% | $30K | — |
| 2021 | Q4 | 2020 | $3K | 1 | GLAZER (RET); CITIZENS FOR … 100% | Other / Unclassified 100% | $33K | — |
| 2022 | Q1 | 2022 | $21K | 2 | CHA FOR OC JUDGE 2022 82% | Other / Unclassified 82% | $21K | — |
| 2022 | Q4 | 2022 | $17K | 1 | NATIONAL ASSOCIATION OF IND… 100% | Other / Unclassified 100% | $38K | — |
| 2024 | Q1 | 2024 | $17K | 1 | SIMON, LATEEFAH 100% | Strategy & Research 100% | $17K | -20% |
| 2025 | Q4 | 2024 | $51K | 3 | NEWSOM BALLOT MEASURE COMMI… 90% | Strategy & Research 90% | $68K | — |
| 2026 | Q1 | 2026 | $15K | 1 | RICHMOND WORKING FAMILIES, … 100% | Other / Unclassified 100% | $15K | -10% |
| 2026 | Q2 | 2026 | $4K | 1 | KOUNALAKIS FOR TREASURER 20… 100% | — | $19K | — |
Revenue by service category
No category revenue in this window.
No category revenue in this window.
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Per-category breakdown · cycle-to-date
| Category | Total spend | Txns | Avg check | % of total | Top buyer · share | Last paid |
|---|---|---|---|---|---|---|
| Other / Unclassified | $452,590 | 67 | $7K | 81.9% | 810163 9% | 7mo ago |
| Strategy & Research | $109,010 | 14 | $8K | 19.7% | NEWSOM BALLOT MEASURE COMMI… 42% | 9mo ago |
| Media | $2,150 | 3 | $717 | 0.4% | TUCK FOR SUPERINTENDENT OF … 56% | 7y ago |
| Contributions & Transfers | -$11,000 | 3 | $-4K | -2.0% | TUCK FOR SUPERINTENDENT OF … 0% | 7y ago |
Client retention
Sticky-relationship signal: how many clients keep coming back across cycles vs one-time buyers.
2
Anchor clients 3+ cycles
$57,750 · 10% of revenue
2
Repeat clients 2 cycles
$36,280 · 6% of revenue
47
One-time clients 1 cycle
$476,820 · 84% of revenue
Top 2 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 | $570,850 | 100.0% | 51 |
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 | 2025-10-23 | NEWSOM BALLOT MEASURE COMMITTEE; SAFETY FOR ALL, | Strategy & Research | Research | $46,000 |
| Largest all-time | 2006-02-10 | HARKEY FOR STATE SENATE, DIANE | Other / Unclassified | — | $21,900 |
| Largest all-time | 2020-09-06 | CALIFORNIANS FOR EQUAL RIGHTS | Other / Unclassified | — | $17,500 |
| Largest all-time | 2022-10-26 | NATIONAL ASSOCIATION OF INDUSTRIAL & OFFICE PROPERTIES INLAND EMPIRE PAC - NAOP IE PAC | Other / Unclassified | — | $17,200 |
| Largest all-time | 2022-03-08 | CHA FOR OC JUDGE 2022 | Other / Unclassified | — | $17,200 |
| Largest this cycle | 2026-01-16 | RICHMOND WORKING FAMILIES, A COALITION OF UNIONS AND COMMUNITY GROUPS | Other / Unclassified | — | $15,000 |
| Largest this cycle | 2026-05-22 | KOUNALAKIS FOR TREASURER 2026; ELENI | — | — | $3,500 |
| Recent | 2025-11-25 | BARRERA FOR SUPERINTENDENT OF PUBLIC INSTRUCTION 2026 | Other / Unclassified | — | $2,900 |
| Recent | 2025-10-22 | ALLEN FOR INSURANCE COMMISSIONER 2026; BEN | — | — | $2,400 |