GRINDSTONE FIELD SOLUTIONS, LLC
$4.68M
2025-2026 cycle
GRINDSTONE FIELD SOLUTIONS, LLC is a strategy & research vendor. In the 2025-2026 cycle GRINDSTONE FIELD SOLUTIONS, LLC was paid $4.68M across 35 client committees, of which $22K 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
$4.68M
=
$4.66M
(Schedule B)
+
$22K
(Independent Expenditures)
| Schedule B direct committee payments |
$4,660,844 | 200 rows | 99.5% |
| Independent Expenditures money this entity spent supporting candidates, NOT a committee paying them |
$22,185 | 1 rows | 0.5% |
- Activity span ALL TIME
- Aug 31, 2018 → Jun 18, 2026
- spans 7.8 years
- Disbursements ALL TIME
- 200
- Schedule B + IE rows
- Client committees ALL TIME
- 35
- 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.
Jul 2025
Jun 2026
$1.99M
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 10
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| CALIFORNIA ALLIANCE OF FAMILY OWNED BUSINESSES PAC 1465611 |
$255,970 | 2 |
| 741666 741666 |
$139,880 | 2 |
| KEEP CALIFORNIA GOLDEN 1376693 |
$88,442 | 1 |
| UMBERG FOR BOARD OF EQUALIZATION 2026; COLONEL (RET.) TOM 1485168 |
$83,619 | 2 |
| PARK FOR A BETTER WESTSIDE; TRACI 1490079 |
$74,900 | 1 |
| KEEPING CALIFORNIANS WORKING, A COALITION OF INSURANCE AGENTS, TECHNOLOGY, ENERGY, AND HEALTH CARE PROVIDERS 1365806 |
$61,768 | 1 |
| COMMITTEE FOR WORKING FAMILIES, SPONSORED BY LABOR ORGANIZATIONS C00626119 |
$22,185 IE $22,185 |
1 |
| 963026 963026 |
$21,104 | 2 |
| 980020 980020 |
$14,826 | 1 |
| CALIFORNIA APARTMENT ASSOCIATION HOUSING SOLUTIONS COMMITTEE 1405775 |
$9,000 | 1 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 6 months · top 10
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| CALIFORNIA ALLIANCE OF FAMILY OWNED BUSINESSES PAC 1465611 |
$521,840 | 4 |
| 741666 741666 |
$204,663 | 3 |
| KEEP CALIFORNIA GOLDEN 1376693 |
$157,687 | 5 |
| KEEPING CALIFORNIANS WORKING, A COALITION OF INSURANCE AGENTS, TECHNOLOGY, ENERGY, AND HEALTH CARE PROVIDERS 1365806 |
$148,750 | 2 |
| CALIFORNIA VOTER EDUCATION AND RESEARCH ALLIANCE 1483303 |
$131,404 | 2 |
| UMBERG FOR BOARD OF EQUALIZATION 2026; COLONEL (RET.) TOM 1485168 |
$92,114 | 3 |
| PARK FOR A BETTER WESTSIDE; TRACI 1490079 |
$74,900 | 1 |
| MATSUI, DORIS CA · House DEM |
$50,463 | 1 |
| COMMITTEE FOR WORKING FAMILIES, SPONSORED BY LABOR ORGANIZATIONS C00626119 |
$22,185 IE $22,185 |
1 |
| HO, THIEN CA · House DEM |
$21,296 | 1 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 12 months · top 10
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| CALIFORNIA ALLIANCE OF FAMILY OWNED BUSINESSES PAC 1465611 |
$521,840 | 4 |
| VOTE NOW CALIFORNIA 1465564 |
$360,177 | 3 |
| 741666 741666 |
$206,863 | 4 |
| CALIFORNIA VOTER EDUCATION AND RESEARCH ALLIANCE 1483303 |
$167,852 | 3 |
| KEEP CALIFORNIA GOLDEN 1376693 |
$157,687 | 5 |
| KEEPING CALIFORNIANS WORKING, A COALITION OF INSURANCE AGENTS, TECHNOLOGY, ENERGY, AND HEALTH CARE PROVIDERS 1365806 |
$148,750 | 2 |
| MATSUI, DORIS CA · House DEM |
$107,988 | 3 |
| UMBERG FOR BOARD OF EQUALIZATION 2026; COLONEL (RET.) TOM 1485168 |
$92,114 | 3 |
| PARK FOR A BETTER WESTSIDE; TRACI 1490079 |
$74,900 | 1 |
| KOUNALAKIS FOR TREASURER 2026; ELENI 1483008 |
$37,763 | 6 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 18 months · top 10
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| CALIFORNIA ALLIANCE OF FAMILY OWNED BUSINESSES PAC 1465611 |
$521,840 | 4 |
| VOTE NOW CALIFORNIA 1465564 |
$364,660 | 4 |
| 741666 741666 |
$207,867 | 5 |
| CALIFORNIA VOTER EDUCATION AND RESEARCH ALLIANCE 1483303 |
$167,852 | 3 |
| KEEP CALIFORNIA GOLDEN 1376693 |
$157,687 | 5 |
| KEEPING CALIFORNIANS WORKING, A COALITION OF INSURANCE AGENTS, TECHNOLOGY, ENERGY, AND HEALTH CARE PROVIDERS 1365806 |
$148,750 | 2 |
| MATSUI, DORIS CA · House DEM |
$107,988 | 3 |
| UMBERG FOR BOARD OF EQUALIZATION 2026; COLONEL (RET.) TOM 1485168 |
$92,114 | 3 |
| PARK FOR A BETTER WESTSIDE; TRACI 1490079 |
$74,900 | 1 |
| KOUNALAKIS FOR TREASURER 2026; ELENI 1483008 |
$37,763 | 6 |
VIEW 1 DIAGRAM DECORATIVE
Top buyers last 24 months · top 10
VIEW 2 TABLE EXPORTABLE
| Filer | Total spend | Disbursements |
|---|---|---|
| CALIFORNIA ALLIANCE OF FAMILY OWNED BUSINESSES PAC 1465611 |
$521,840 | 4 |
| VOTE NOW CALIFORNIA 1465564 |
$364,660 | 4 |
| 741666 741666 |
$302,010 | 7 |
| DCCC C00000935 |
$300,000 | 3 |
| COSTA, JIM CA · House DEM |
$210,134 | 4 |
| CALIFORNIA VOTER EDUCATION AND RESEARCH ALLIANCE 1483303 |
$167,852 | 3 |
| KEEP CALIFORNIA GOLDEN 1376693 |
$157,687 | 5 |
| KEEPING CALIFORNIANS WORKING, A COALITION OF INSURANCE AGENTS, TECHNOLOGY, ENERGY, AND HEALTH CARE PROVIDERS 1365806 |
$148,750 | 2 |
| MATSUI, DORIS CA · House DEM |
$107,988 | 3 |
| UMBERG FOR BOARD OF EQUALIZATION 2026; COLONEL (RET.) TOM 1485168 |
$92,114 | 3 |
By party
Revenue by party
D · 100%
R · 0%
| Party | Amount | % |
|---|---|---|
| Democratic | $1,053,920 | 22.51% |
| Republican | $0 | 0.00% |
| Non-partisan | $3,629,109 | 77.49% |
Part III Reference tables
Full all-time and cycle-to-date data.
Money flow through this vendor
Where their ad buys point
IE payers (left) → races the buys targeted (right) · independent-expenditure filings onlyNo activity in the last 1 months.
Outflow is on record for the last 12 months, but no itemized payers are.
Outflow is on record for the last 18 months, but no itemized payers are.
Outflow is on record for the last 24 months, but no itemized payers are.
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 | $10K | 2 | COSTA, JIM 100% | Strategy & Research 100% | $10K | — |
| 2018 | Q4 | 2018 | $22K | 4 | COSTA, JIM 100% | Strategy & Research 100% | $33K | — |
| 2020 | Q1 | 2020 | $40K | 7 | COSTA, JIM 63% | Strategy & Research 100% | $40K | — |
| 2020 | Q3 | 2020 | $22K | 1 | SCHOOLS AND COMMUNITIES FIR… 100% | Other / Unclassified 100% | $62K | +110% |
| 2022 | Q1 | 2022 | $10K | 1 | ASHBY FOR SENATE 2022; ANGE… 100% | Strategy & Research 100% | $10K | -75% |
| 2022 | Q2 | 2022 | $194K | 13 | HURTADO FOR SENATE 2022 46% | Field & Voter Contact 69% | $204K | — |
| 2022 | Q3 | 2022 | $145K | 9 | COSTA, JIM 73% | Strategy & Research 96% | $349K | +570% |
| 2022 | Q4 | 2022 | $840K | 63 | HURTADO FOR SENATE 2022 26% | Strategy & Research 59% | $1.19M | — |
| 2023 | Q1 | 2022 | $3K | 4 | HURTADO FOR SENATE 2022 100% | Wages & Payroll 71% | $1.19M | — |
| 2024 | Q1 | 2024 | $252K | 10 | KEEP CALIFORNIA GOLDEN 28% | Strategy & Research 46% | $252K | +2417% |
| 2024 | Q3 | 2024 | $490K | 11 | DCCC 46% | Strategy & Research 98% | $742K | +239% |
| 2024 | Q4 | 2024 | $548K | 24 | COSTA, JIM 23% | Strategy & Research 85% | $1.29M | -35% |
| 2025 | Q1 | 2024 | $94K | 2 | 741666 100% | Strategy & Research 100% | $1.38M | +3243% |
| 2025 | Q2 | 2024 | $1K | 1 | 741666 100% | Strategy & Research 100% | $1.39M | — |
| 2025 | Q3 | 2024 | $125K | 2 | VOTE NOW CALIFORNIA 100% | Other / Unclassified 100% | $1.51M | — |
| 2025 | Q3 | 2026 | $5K | 1 | BAINS, JASMEET 100% | Strategy & Research 100% | $5K | — |
| 2025 | Q4 | 2024 | $242K | 3 | VOTE NOW CALIFORNIA 99% | Other / Unclassified 99% | $1.75M | — |
| 2026 | Q1 | 2026 | $449K | 19 | CALIFORNIA VOTER EDUCATION … 37% | Strategy & Research 44% | $454K | +78% |
| 2026 | Q2 | 2026 | $1.17M | 23 | CALIFORNIA ALLIANCE OF FAMI… 32% | Strategy & Research 19% | $1.62M | — |
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 |
|---|---|---|---|---|---|---|
| Strategy & Research | $2,351,709 | 114 | $21K | 60.6% | COSTA, JIM 22% | 3mo ago |
| Other / Unclassified | $661,048 | 25 | $26K | 17.0% | VOTE NOW CALIFORNIA 55% | 2mo ago |
| Field & Voter Contact | $625,757 | 19 | $33K | 16.1% | HURTADO FOR SENATE 2022 46% | 2mo ago |
| Wages & Payroll | $141,880 | 3 | $47K | 3.7% | 741666 99% | 2mo ago |
| Digital | $80,576 | 8 | $10K | 2.1% | COMMITTEE TO SUPPORT THE AL… 33% | 2mo ago |
| Travel & Events | $15,171 | 11 | $1K | 0.4% | HURTADO FOR SENATE 2022 83% | 4mo ago |
| Fundraising | $4,600 | 1 | $5K | 0.1% | BECERRA FOR GOVERNOR 2026 100% | 3mo ago |
Client retention
Sticky-relationship signal: how many clients keep coming back across cycles vs one-time buyers.
3
Anchor clients 3+ cycles
$1,092,365 · 23% of revenue
0
Repeat clients 2 cycles
$0 · 0% of revenue
32
One-time clients 1 cycle
$3,568,478 · 77% of revenue
Top 3 anchor clients · all-time
| Client | Cycles | All-time spend | Txns | First paid | Last paid |
|---|---|---|---|---|---|
| COSTA, JIM | 4 | $522,346 | 23 | 2018-08-31 | 2024-11-23 |
| 741666 | 3 | $327,010 | 8 | 2022-12-01 | 2026-05-26 |
| KEEP CALIFORNIA GOLDEN | 3 | $243,010 | 7 | 2020-02-24 | 2026-05-12 |
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 | $4,360,844 | 93.6% | 34 | |
| DC | $300,000 | 6.4% | 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 | 2024-08-16 | DCCC | Strategy & Research | GENERIC CMTE. GOTV CONSULTING | $150,000 |
| Largest all-time | 2026-03-27 | CALIFORNIA ALLIANCE OF FAMILY OWNED BUSINESSES PAC | Strategy & Research | — | $141,856 |
| Largest all-time | 2026-05-14 | CALIFORNIA ALLIANCE OF FAMILY OWNED BUSINESSES PAC | Other / Unclassified | SEE SCHEDULE G | $131,956 |
| Largest all-time | 2026-05-14 | CALIFORNIA ALLIANCE OF FAMILY OWNED BUSINESSES PAC | — | — | $124,014 |
| Largest all-time | 2026-04-06 | CALIFORNIA ALLIANCE OF FAMILY OWNED BUSINESSES PAC | Strategy & Research | — | $124,014 |
| Largest this cycle | 2026-05-12 | KEEP CALIFORNIA GOLDEN | Field & Voter Contact | Canvassing/Support/Andrae Gonzales/State Assembly/District 35 | $88,442 |
| Recent | 2026-05-26 | 741666 | Wages & Payroll | campaign field coordinator | $84,938 |
| Recent | 2026-06-01 | PARK FOR A BETTER WESTSIDE; TRACI | — | — | $74,900 |
| Recent | 2026-05-27 | KEEPING CALIFORNIANS WORKING, A COALITION OF INSURANCE AGENTS, TECHNOLOGY, ENERGY, AND HEALTH CARE PROVIDERS | — | CMP, SAL, POL; Support; Andrae Gonzales; AD35 | $61,768 |
| Recent | 2026-06-18 | CALIFORNIA APARTMENT ASSOCIATION HOUSING SOLUTIONS COMMITTEE | — | PHO, Support; Lisa Kaplan, Sacramento City Council, CD 01 | $9,000 |
| Recent | 2026-05-22 | 963026 | — | — | $1,000 |