NIELSEN MERKSAMER PARRINELLO GROSS & LEONI LLP
NIELSEN MERKSAMER PARRINELLO GROSS & LEONI LLP is a legal & compliance vendor. In the 2025-2026 cycle NIELSEN MERKSAMER PARRINELLO GROSS & LEONI LLP was paid $33.79M across 227 client committees, of which $303K 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
| Schedule B direct committee payments |
$33,483,097 | 5,438 rows | 99.1% |
| Independent Expenditures money this entity spent supporting candidates, NOT a committee paying them |
$303,022 | 29 rows | 0.9% |
- Activity span ALL TIME
- Nov 15, 2000 → Aug 6, 2026
- spans 25.7 years
- Disbursements ALL TIME
- 5,438
- Schedule B + IE rows
- Client committees ALL TIME
- 227
- 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.
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.
Top buyers last 3 months · top 10
| Filer | Total spend | Disbursements |
|---|---|---|
| CONSULTING ENGINEERS AND LAND SURVEYORS ISSUES FUND (CELS ISSUES FUND) 1270458 |
$10,000 | 1 |
| CALIFORNIANS AGAINST HIGHER TAXES, SPONSORED BY THE CALIFORNIA BUSINESS ROUNDTABLE 1485228 |
$6,335 | 2 |
| CALIFORNIA COMMUNITY ENERGY PAC, SPONSORED BY SIGNAL HILL PETROLEUM 1463733 |
$4,167 | 3 |
| DGA-PAC THE POLITICAL ACTION COMMITTEE OF THE DIRECTORS GUILD OF AMERICA INC. C00311944 |
$3,115 | 1 |
| 992074 992074 |
$2,775 | 2 |
| GFC COURAGE COMMITTEE - COMMON SENSE CHAPTER 1424659 |
$2,500 | 1 |
| GFC COURAGE COMMITTEE - SANTA BARBARA CHAPTER 1435804 |
$2,500 | 1 |
| GFC COURAGE COMMITTEE - SANTA CLARA CHAPTER 1416428 |
$2,500 | 1 |
| GFC COURAGE COMMITTEE - EAST BAY CHAPTER 1416434 |
$2,500 | 1 |
| GFC COURAGE COMMITTEE - BAY AREA CHAPTER 1423911 |
$2,500 | 1 |
Top buyers last 6 months · top 10
| Filer | Total spend | Disbursements |
|---|---|---|
| CALIFORNIANS FOR A MORE TRANSPARENT AND EFFECTIVE GOVERNMENT, SPONSORED BY BUILDING A BETTER CALIFORNIA 1488423 |
$252,744 | 3 |
| CALIFORNIANS TO PROTECT RETIREMENT AND LIFE SAVINGS, SPONSORED BY BUILDING A BETTER CALIFORNIA 1488418 |
$251,612 | 3 |
| 911819 911819 |
$203,570 | 5 |
| A MORE AFFORDABLE CALIFORNIA, SPONSORED BY UBER 1484835 |
$155,044 | 3 |
| YES ON 45 - BUILDING A MORE AFFORDABLE CALIFORNIA, A COALITION OF WATER, AFFORDABLE HOUSING, CLEAN ENERGY, SMALL BUSINESS, HEALTHCARE & COMMUNITY LEADERS 1484853 |
$147,763 | 6 |
| BUILDING A BETTER CALIFORNIA 1486767 |
$132,207 | 10 |
| MAHAN FOR GOVERNOR 2026; CALIFORNIA BACK TO BASICS SUPPORTING MATT 1487425 |
$102,488 | 8 |
| BODNAR, SETH MT · Senate IND |
$69,299 | 2 |
| WORKING FAMILIES FOR SAN FRANCISCO PAC C00945303 |
$65,954 | 4 |
| MAHAN FOR GOVERNOR 2026; DELIVER FOR CALIFORNIA - MATT 1488176 |
$56,345 | 4 |
Top buyers last 12 months · top 10
| Filer | Total spend | Disbursements |
|---|---|---|
| YES ON 45 - BUILDING A MORE AFFORDABLE CALIFORNIA, A COALITION OF WATER, AFFORDABLE HOUSING, CLEAN ENERGY, SMALL BUSINESS, HEALTHCARE & COMMUNITY LEADERS 1484853 |
$417,837 | 13 |
| A MORE AFFORDABLE CALIFORNIA, SPONSORED BY UBER 1484835 |
$375,887 | 10 |
| CALIFORNIANS FOR A MORE TRANSPARENT AND EFFECTIVE GOVERNMENT, SPONSORED BY BUILDING A BETTER CALIFORNIA 1488423 |
$287,744 | 4 |
| CALIFORNIANS TO PROTECT RETIREMENT AND LIFE SAVINGS, SPONSORED BY BUILDING A BETTER CALIFORNIA 1488418 |
$286,612 | 4 |
| 911819 911819 |
$214,912 | 10 |
| 761010 761010 |
$178,833 | 3 |
| MAHAN FOR GOVERNOR 2026; CALIFORNIA BACK TO BASICS SUPPORTING MATT 1487425 |
$167,768 | 11 |
| NO ON PROP 50 - PROTECT VOTERS FIRST, SPONSORED BY HOLD POLITICIANS ACCOUNTABLE 1381029 |
$144,700 | 7 |
| BUILDING A BETTER CALIFORNIA 1486767 |
$132,207 | 10 |
| CONSULTING ENGINEERS AND LAND SURVEYORS ISSUES FUND (CELS ISSUES FUND) 1270458 |
$100,000 | 10 |
Top buyers last 18 months · top 10
| Filer | Total spend | Disbursements |
|---|---|---|
| YES ON 45 - BUILDING A MORE AFFORDABLE CALIFORNIA, A COALITION OF WATER, AFFORDABLE HOUSING, CLEAN ENERGY, SMALL BUSINESS, HEALTHCARE & COMMUNITY LEADERS 1484853 |
$417,837 | 13 |
| A MORE AFFORDABLE CALIFORNIA, SPONSORED BY UBER 1484835 |
$375,887 | 10 |
| CALIFORNIANS FOR A MORE TRANSPARENT AND EFFECTIVE GOVERNMENT, SPONSORED BY BUILDING A BETTER CALIFORNIA 1488423 |
$287,744 | 4 |
| CALIFORNIANS TO PROTECT RETIREMENT AND LIFE SAVINGS, SPONSORED BY BUILDING A BETTER CALIFORNIA 1488418 |
$286,612 | 4 |
| 911819 911819 |
$228,599 | 16 |
| NO ON PROP 50 - PROTECT VOTERS FIRST, SPONSORED BY HOLD POLITICIANS ACCOUNTABLE 1381029 |
$180,336 | 12 |
| 761010 761010 |
$178,833 | 3 |
| MAHAN FOR GOVERNOR 2026; CALIFORNIA BACK TO BASICS SUPPORTING MATT 1487425 |
$167,768 | 11 |
| CONSULTING ENGINEERS AND LAND SURVEYORS ISSUES FUND (CELS ISSUES FUND) 1270458 |
$150,000 | 15 |
| BUILDING A BETTER CALIFORNIA 1486767 |
$132,207 | 10 |
Top buyers last 24 months · top 10
By party
Revenue by party
| Party | Amount | % |
|---|---|---|
| Democratic | $239,594 | 0.71% |
| Republican | $6,045 | 0.02% |
| Non-partisan | $33,540,480 | 99.27% |
Part III Reference tables
Full all-time and cycle-to-date data.
People at this agency 0 buyers · 9 leadership
Leadership 9
Founders, partners, chiefs — for strategic / partnership conversations.
Partner
nmgovlaw.com · LinkedIn company page · updated 4mo ago
Cycle-over-cycle trajectory
current cycle earlier election cycle off-cycle year quarterly · 10 years
| Year | Q | Cycle | Total | Txns | Top buyer · share | Top category · share | Cum. (cycle) | YoY % |
|---|---|---|---|---|---|---|---|---|
| 2017 | Q1 | 2016 | $79K | 48 | 992074 23% | Legal & Compliance 95% | $79K | — |
| 2017 | Q1 | 2018 | $16K | 8 | DGA-PAC THE POLITICAL ACTIO… 58% | Legal & Compliance 100% | $16K | — |
| 2017 | Q2 | 2016 | $58K | 43 | COALITION TO RESTORE CALIFO… 18% | Legal & Compliance 94% | $137K | — |
| 2017 | Q2 | 2018 | $12K | 6 | DGA-PAC THE POLITICAL ACTIO… 76% | Legal & Compliance 100% | $28K | — |
| 2017 | Q3 | 2016 | $90K | 51 | GOVERN FOR CALIFORNIA COURA… 20% | Legal & Compliance 89% | $227K | — |
| 2017 | Q3 | 2018 | $16K | 12 | DGA-PAC THE POLITICAL ACTIO… 59% | Legal & Compliance 100% | $44K | — |
| 2017 | Q4 | 2016 | $145K | 61 | CALIFORNIANS FOR EMERGENCY … 30% | Legal & Compliance 68% | $371K | — |
| 2017 | Q4 | 2018 | $11K | 7 | DGA-PAC THE POLITICAL ACTIO… 84% | Legal & Compliance 100% | $55K | — |
| 2018 | Q1 | 2018 | $670K | 75 | CALIFORNIANS FOR SAFE AND A… 30% | Legal & Compliance 93% | $725K | — |
| 2018 | Q2 | 2018 | $871K | 75 | COMMITTEE TO PROTECT CALIFO… 30% | Legal & Compliance 99% | $1.6M | — |
| 2018 | Q3 | 2018 | $977K | 86 | CALIFORNIANS FOR RESPONSIBL… 23% | Legal & Compliance 92% | $2.57M | — |
| 2018 | Q4 | 2018 | $445K | 74 | CALIFORNIANS FOR RESPONSIBL… 20% | Legal & Compliance 90% | $3.02M | — |
| 2019 | Q1 | 2018 | $229K | 73 | CALIFORNIANS FOR RESPONSIBL… 40% | Legal & Compliance 83% | $3.25M | +190% |
| 2019 | Q1 | 2020 | $19K | 10 | DGA-PAC THE POLITICAL ACTIO… 68% | Legal & Compliance 100% | $19K | +15% |
| 2019 | Q2 | 2018 | $220K | 50 | CALIFORNIANS FOR RESPONSIBL… 23% | Legal & Compliance 93% | $3.47M | +278% |
| 2019 | Q2 | 2020 | $14K | 7 | DGA-PAC THE POLITICAL ACTIO… 89% | Legal & Compliance 100% | $33K | +14% |
| 2019 | Q3 | 2018 | $175K | 49 | CALIFORNIANS FOR RESPONSIBL… 24% | Legal & Compliance 98% | $3.64M | +95% |
| 2019 | Q3 | 2020 | $12K | 6 | DGA-PAC THE POLITICAL ACTIO… 80% | Legal & Compliance 100% | $44K | -27% |
| 2019 | Q4 | 2018 | $289K | 64 | PROTECT APP-BASED DRIVERS A… 48% | Legal & Compliance 50% | $3.93M | +100% |
| 2019 | Q4 | 2020 | $11K | 7 | DGA-PAC THE POLITICAL ACTIO… 82% | Legal & Compliance 100% | $55K | +2% |
| 2020 | Q1 | 2020 | $718K | 73 | PROTECT APP-BASED DRIVERS A… 41% | Legal & Compliance 57% | $774K | +7% |
| 2020 | Q2 | 2020 | $987K | 68 | PROTECT APP-BASED DRIVERS A… 54% | Wages & Payroll 54% | $1.76M | +13% |
| 2020 | Q3 | 2020 | $435K | 77 | NO ON 33, CALIFORNIANS FOR … 23% | Legal & Compliance 96% | $2.2M | -56% |
| 2020 | Q4 | 2020 | $1.3M | 68 | NO ON PROP 31 - CALIFORNIAN… 62% | Wages & Payroll 74% | $3.49M | +192% |
| 2021 | Q1 | 2020 | $755K | 74 | PROTECT APP-BASED DRIVERS A… 30% | Wages & Payroll 50% | $4.25M | +230% |
| 2021 | Q1 | 2022 | $17K | 8 | DGA-PAC THE POLITICAL ACTIO… 54% | Legal & Compliance 100% | $17K | -6% |
| 2021 | Q2 | 2020 | $331K | 62 | NO ON PROP 31 - CALIFORNIAN… 47% | Wages & Payroll 48% | $4.58M | +51% |
| 2021 | Q2 | 2022 | $14K | 7 | DGA-PAC THE POLITICAL ACTIO… 90% | Legal & Compliance 100% | $31K | -1% |
| 2021 | Q3 | 2020 | $234K | 64 | NO ON PROP 31 - CALIFORNIAN… 18% | Legal & Compliance 77% | $4.81M | +34% |
| 2021 | Q3 | 2022 | $27K | 13 | DGA-PAC THE POLITICAL ACTIO… 46% | Legal & Compliance 100% | $58K | +131% |
| 2021 | Q4 | 2020 | $227K | 50 | YES ON 27 - CALIFORNIANS FO… 54% | Legal & Compliance 92% | $5.04M | -21% |
| 2021 | Q4 | 2022 | $13K | 9 | NUESTRO PAC 44% | Legal & Compliance 100% | $71K | +12% |
| 2022 | Q1 | 2022 | $432K | 77 | CALIFORNIANS FOR CLEAN CARS… 18% | Legal & Compliance 92% | $503K | -40% |
| 2022 | Q2 | 2022 | $564K | 74 | YES ON 27 - CALIFORNIANS FO… 43% | Legal & Compliance 91% | $1.07M | -43% |
| 2022 | Q3 | 2022 | $228K | 80 | 992074 6% | Legal & Compliance 96% | $1.29M | -48% |
| 2022 | Q4 | 2022 | $603K | 57 | STOP THE ENERGY SHUTDOWN, A… 45% | Legal & Compliance 51% | $1.9M | -54% |
| 2023 | Q1 | 2022 | $432K | 71 | SAVE LOCAL RESTAURANTS, A C… 31% | Legal & Compliance 90% | $2.33M | -43% |
| 2023 | Q1 | 2024 | $19K | 8 | DGA-PAC THE POLITICAL ACTIO… 82% | Legal & Compliance 100% | $19K | +9% |
| 2023 | Q2 | 2022 | $309K | 44 | SAVE LOCAL RESTAURANTS, A C… 70% | Legal & Compliance 100% | $2.64M | -7% |
| 2023 | Q2 | 2024 | $20K | 14 | DGA-PAC THE POLITICAL ACTIO… 47% | Legal & Compliance 100% | $39K | +45% |
| 2023 | Q3 | 2022 | $343K | 65 | SAVE LOCAL RESTAURANTS, A C… 25% | Legal & Compliance 100% | $2.98M | +46% |
| 2023 | Q3 | 2024 | $13K | 6 | DGA-PAC THE POLITICAL ACTIO… 74% | Legal & Compliance 100% | $52K | -53% |
| 2023 | Q4 | 2022 | $601K | 67 | YES ON 34, PROTECT PATIENTS… 53% | Legal & Compliance 100% | $3.58M | +165% |
| 2023 | Q4 | 2024 | $37K | 8 | TAMMY MURPHY FOR SENATE 48% | Legal & Compliance 100% | $89K | +196% |
| 2024 | Q1 | 2024 | $848K | 91 | YES ON 34, PROTECT PATIENTS… 32% | Legal & Compliance 100% | $937K | +96% |
| 2024 | Q2 | 2024 | $273K | 79 | YES ON 34, PROTECT PATIENTS… 22% | Legal & Compliance 99% | $1.21M | -52% |
| 2024 | Q3 | 2024 | $429K | 97 | YES ON 35 - PROTECT OUR HEA… 28% | Legal & Compliance 94% | $1.64M | +88% |
| 2024 | Q4 | 2024 | $638K | 90 | NO ON 33, CALIFORNIANS FOR … 34% | Legal & Compliance 99% | $2.28M | +6% |
| 2025 | Q1 | 2024 | $300K | 87 | 911819 13% | Legal & Compliance 93% | $2.58M | -31% |
| 2025 | Q1 | 2026 | $26K | 12 | PRO PAC 59% | Legal & Compliance 100% | $26K | +34% |
| 2025 | Q2 | 2024 | $155K | 62 | NO ON 33, CALIFORNIANS FOR … 34% | Legal & Compliance 78% | $2.73M | -50% |
| 2025 | Q2 | 2026 | $45K | 15 | OVERSIGHT ACTION FUND 47% | Legal & Compliance 100% | $70K | +122% |
| 2025 | Q3 | 2024 | $265K | 73 | NO ON PROP 50 - PROTECT VOT… 13% | Legal & Compliance 88% | $3M | -23% |
| 2025 | Q3 | 2026 | $34K | 10 | OVERSIGHT ACTION FUND 62% | Legal & Compliance 100% | $104K | +170% |
| 2025 | Q4 | 2024 | $347K | 94 | NO ON PROP 50 - PROTECT VOT… 32% | Legal & Compliance 67% | $3.34M | -42% |
| 2025 | Q4 | 2026 | $24K | 8 | OVERSIGHT ACTION FUND 51% | Legal & Compliance 100% | $128K | -36% |
| 2026 | Q1 | 2026 | $1.37M | 132 | YES ON 45 - BUILDING A MORE… 20% | Legal & Compliance 49% | $1.5M | +62% |
| 2026 | Q2 | 2026 | $1.62M | 147 | 911819 13% | Wages & Payroll 10% | $3.12M | +493% |
| 2026 | Q3 | 2026 | $20K | 10 | DGA-PAC THE POLITICAL ACTIO… 16% | — | $3.14M | -95% |
Revenue by service category
No category revenue in this window.
No category revenue in this window.
| Category | Total spend | Txns | Avg check | % of total | Top buyer · share | Last paid |
|---|---|---|---|---|---|---|
| Legal & Compliance | $22,835,060 | 3,864 | $6K | 72.2% | STOP BLANK CHECKS 5% | 5mo ago |
| Other / Unclassified | $5,565,423 | 1,258 | $4K | 17.6% | YES ON 17-CALIFORNIANS FOR … 8% | 2mo ago |
| Wages & Payroll | $3,110,190 | 113 | $28K | 9.8% | PROTECT APP-BASED DRIVERS A… 43% | 3mo ago |
| Admin & Office | $71,629 | 9 | $8K | 0.2% | VALERO ENERGY PAC 100% | 10y ago |
| Strategy & Research | $34,206 | 5 | $7K | 0.1% | 761010 100% | 14y ago |
| Contributions & Transfers | -$1,472 | 2 | $-736 | -0.0% | 950352 0% | 13y ago |
Client retention
Sticky-relationship signal: how many clients keep coming back across cycles vs one-time buyers.
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 | $32,571,268 | 97.3% | 213 | |
| TX | $508,618 | 1.5% | 1 | |
| NJ | $286,261 | 0.9% | 4 | |
| MT | $69,299 | 0.2% | 1 | |
| DC | $30,365 | 0.1% | 4 | |
| IL | $5,294 | 0.0% | 1 | |
| MD | $5,000 | 0.0% | 1 | |
| AZ | $3,747 | 0.0% | 1 | |
| NY | $3,245 | 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 | 2020-11-10 | NO ON PROP 31 - CALIFORNIANS AGAINST PROHIBITION, SPONSORED BY MANUFACTURERS | Wages & Payroll | JASON D. KAUNE, COMMITTEE TREASURER, IS A PARTNER OF PAYEE; JOEL S. AURORA, COMMITTEE ASSISTANT TREASURER IS AN EMPLOYEE OF PAYEE | $247,588 |
| Largest all-time | 2005-04-07 | CITIZENS TO SAVE CALIFORNIA, A COALITION OF BUSINESS & TAXPAYER ORGANIZATIONS | Other / Unclassified | VIGO G. NIELSEN, JR., COMMITTEE TREASURER, IS A PARTNER OF PAYEE | $239,133 |
| Largest all-time | 2020-12-09 | NO ON PROP 31 - CALIFORNIANS AGAINST PROHIBITION, SPONSORED BY MANUFACTURERS | Wages & Payroll | JASON D. KAUNE, COMMITTEE TREASURER, IS A PARTNER OF PAYEE; JOEL S. AURORA, COMMITTEE ASSISTANT TREASURER IS AN EMPLOYEE OF PAYEE | $226,157 |
| Largest all-time | 2010-04-07 | YES ON 16 / CALIFORNIANS TO PROTECT OUR RIGHT TO VOTE MAJOR FUNDING FROM PACIFIC GAS & ELECTRIC COMPANY A COALITION OF TAXPAYERS, ENVIRONMENTALISTS, RENEWABLE ENERGY, BUSINESS AND LABOR | Legal & Compliance | STEVEN S. LUCAS, COMMITTEE TREASURER, IS A PARTNER OF PAYEE | $223,107 |
| Largest all-time | 2020-04-10 | PROTECT APP-BASED DRIVERS AND SERVICES, A COALITION OF ON-DEMAND DRIVERS AND NETWORK COMPANIES, SMALL BUSINESSES, COMMUNITY GROUPS AND PUBLIC SAFETY ORGANIZATIONS | Wages & Payroll | STEVEN S. LUCAS, COMMITTEE TREASURER, IS A PARTNER OF PAYEE; JOEL AURORA, COMMITTEE ASSISTANT TREASURER, IS AN EMPLOYEE OF PAYEE | $208,176 |
| Largest this cycle | 2026-04-17 | CALIFORNIANS TO PROTECT RETIREMENT AND LIFE SAVINGS, SPONSORED BY BUILDING A BETTER CALIFORNIA | — | ELLI ABDOLI, COMMITTEE TREASURER, AND JOEL S. AURORA, COMMITTEE ASSISTANT TREASURER, ARE PARTNERS OF PAYEE | $131,350 |
| Largest this cycle | 2026-04-17 | CALIFORNIANS FOR A MORE TRANSPARENT AND EFFECTIVE GOVERNMENT, SPONSORED BY BUILDING A BETTER CALIFORNIA | — | ELLI ABDOLI, COMMITTEE TREASURER, AND JOEL S. AURORA, COMMITTEE ASSISTANT TREASURER, ARE PARTNERS OF PAYEE | $120,610 |
| Largest this cycle | 2026-01-20 | 761010 | — | — | $109,240 |
| Largest this cycle | 2026-01-26 | YES ON 45 - BUILDING A MORE AFFORDABLE CALIFORNIA, A COALITION OF WATER, AFFORDABLE HOUSING, CLEAN ENERGY, SMALL BUSINESS, HEALTHCARE & COMMUNITY LEADERS | Other / Unclassified | STEVEN S. LUCAS, COMMITTEE TREASURER, IS A PARTNER OF PAYEE; EVANN WHITELAM, ASSISTANT TREASURER, IS A PARTNER OF PAYEE | $90,058 |
| Largest this cycle | 2026-06-08 | 911819 | — | — | $81,685 |
| Recent | 2026-08-05 | GFC COURAGE COMMITTEE - SANTA BARBARA CHAPTER | — | — | $2,500 |
| Recent | 2026-08-05 | GFC COURAGE COMMITTEE - SANTA CLARA CHAPTER | — | — | $2,500 |
| Recent | 2026-07-30 | GFC COURAGE COMMITTEE - COMMON SENSE CHAPTER | — | — | $2,500 |
| Recent | 2026-08-06 | COMMONWEALTH COURAGE PAC | — | LEGAL SERVICES AND PAC ADMINISTRATION | $1,774 |
| Recent | 2026-08-06 | COMMONWEALTH COURAGE PAC | — | LEGAL SERVICES AND PAC ADMINISTRATION | $127 |