Company lists · Data refreshed September 2026

Top 25 Advocacy consulting firms based in Lansing, United States

Name: Advocacy consulting firms based in Lansing, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 37 companies tracked

RevenueBase identified 37 advocacy consulting firms headquartered in Lansing, United States as of September 2026 and tracks 598 professional contacts across them, including 191 with verified work emails. Washington is the largest hub.

This list covers advocacy consulting firms headquartered in Lansing, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review

37Companies

598Contacts tracked

191Verified emails

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The 25 largest advocacy consulting firms based in Lansing, United States

Ranked by team size

Top 25 of 37 advocacy consulting firms based in Lansing, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to advocacy consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Public Sector Consultants	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	n/a	268 contacts →
	Indirect evidence “Our Mission: Improving the quality of life for residents of Michigan and beyond through the development and implementation of innovative, actionable public policies.” Source: RevenueBase Database · checked Sep 14, 2026
2	Kelley Cawthorne	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	11-50	25 contacts →
	Indirect evidence “Why Kelley Cawthorne?” Source: RevenueBase Database · checked Sep 14, 2026
3	Bellwether Public Relations	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	11-50	21 contacts →
	Indirect evidence “Bellwether Public Relations is a full-service public relations firm that combines experience and strategy to drive tangible change.” Source: RevenueBase Database · checked Sep 14, 2026
4	GCSI	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	51-200	21 contacts →
	Indirect evidence “Consistently ranked Michigan's #1 top lobbying firm.” Source: RevenueBase Database · checked Sep 14, 2026
5	Acuitas LLC	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	11-50	19 contacts →
	Indirect evidence “Insight • Perception • Sharpness.” Source: RevenueBase Database · checked Sep 14, 2026
6	Marketing Resource Group, LLC	Partial evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	11-50	19 contacts →
	Partial evidence “Founded in 1979, Marketing Resource Group (MRG) started as a political consulting firm, providing candidates for local, state, and national offices with strategic management of…” Source: RevenueBase Database · checked Sep 14, 2026
7	Michigan Legislative Consultants	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	11-50	15 contacts →
	Indirect evidence “A single decision made at the Capitol has the potential to change the entire landscape of your industry – and the direction of your business.” Source: RevenueBase Database · checked Sep 14, 2026
8	Khoury Johnson Leavitt	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	13 contacts →
	Indirect evidence “At KJL, we pride ourselves on being responsive, results-driven, and deeply connected.” Source: RevenueBase Database · checked Sep 14, 2026
9	Edge Partnerships	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	12 contacts →
	Indirect evidence “With the singular purpose of helping others succeed, EDGE was created by two high-performance businesswomen who wanted to make a difference.” Source: RevenueBase Database · checked Sep 14, 2026
10	Farough & Associates	Partial evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	12 contacts →
	Partial evidence “Farough & Associates is a top-notch Michigan-based public relations firm that specializes in campaign strategy, issue advocacy, research, and all aspects of communications.” Source: RevenueBase Database · checked Sep 14, 2026
11	Muchmore Harrington Smalley & Associates	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	11-50	11 contacts →
	Indirect evidence “Muchmore Harrington Smalley & Associates, Inc.(MHSA) is a multi-client lobbying firm that works aggressively to shape public policy and weave our clients' interests into the…” Source: RevenueBase Database · checked Sep 14, 2026
12	Mcalvey Merchant & Associates	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	10 contacts →
	Indirect evidence “As a leading Michigan lobbying firm, McAlvey Merchant & Associates is proud of our reputation of results, our client service and our deep relationships with policymakers, opinion…” Source: RevenueBase Database · checked Sep 14, 2026
13	Resch Strategies	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	9 contacts →
	Indirect evidence “Welcome to Resch Strategies, a communications, public relations and issue management firm.” Source: RevenueBase Database · checked Sep 14, 2026
14	Grassroots Midwest	Partial evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	8 contacts →
	Partial evidence “Grassroots Midwest is Michigan's first and only bipartisan grassroots advocacy firm, dedicated to doing one thing for our clients: winning.” Source: RevenueBase Database · checked Sep 14, 2026
15	Karoub Associates	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	11-50	8 contacts →
	Indirect evidence “Founded in 1968, Karoub Associates is the oldest and one of the largest multi-client lobbying firms in the State of Michigan.” Source: RevenueBase Database · checked Sep 14, 2026
16	MGS Consultants	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	11-50	7 contacts →
	Indirect evidence “We encompass a dedicated approach that allows us to enable corporations, associations, and nonprofits to promote their interests through political, legislative, and regulatory…” Source: RevenueBase Database · checked Sep 14, 2026
17	Capitol Affairs, INC	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
18	Grant Consulting Group	Partial evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	7 contacts →
	Partial evidence “Grant Consulting Group specializes in government and public relations consulting and focuses on issues pertinent to clients at the international, federal, state and local levels.” Source: RevenueBase Database · checked Sep 14, 2026
19	Mccall Hamilton	Strong evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	6 contacts →
	Strong evidence “McCall Hamilton is a bipartisan lobbying, regulatory consulting, and grassroots advocacy firm in Lansing.” Source: RevenueBase Database · checked Sep 14, 2026
20	Harbor Strategic Public Affairs	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	6 contacts →
	Indirect evidence “Harbor Strategic specializes in creating the messaging, media strategy, coalition building and campaign efforts to win your issue.” Source: RevenueBase Database · checked Sep 14, 2026
21	Midwest Strategy Group	Partial evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	51-200	5 contacts →
	Partial evidence “We are a top-ranked, bipartisan team of advocacy and strategic consultants.” Source: RevenueBase Database · checked Sep 14, 2026
22	Scofes & Associates Consulting	Partial evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	11-50	5 contacts →
	Partial evidence “Scofes & Associates Consulting Inc.” Source: RevenueBase Database · checked Sep 14, 2026
23	Bright Spark Strategies	Partial evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	5 contacts →
	Partial evidence “A team of skilled and passionate political consultants, fundraisers, public affairs professionals and compliance experts offering a variety of political, fundraising, and advocacy…” Source: RevenueBase Database · checked Sep 14, 2026
24	The Frederick Group	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	5 contacts →
	Indirect evidence “Some lobbyist firms represent clients on both sides of an issue, which can create ethical or financial conflicts of interest.” Source: RevenueBase Database · checked Sep 14, 2026
25	The Winmatt Group	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 14, 2026	1-10	5 contacts →
	Indirect evidence “Lansing, MI based strategic advisory and public affairs firm focused on relationship-driven results.” Source: RevenueBase Database · checked Sep 14, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: advocacy consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names advocacy consulting firms.
Partial evidence: Its own public description names part of advocacy consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name advocacy consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 37 advocacy consulting firms based in Lansing, United States

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Advocacy consulting firms based in Lansing, United States at a glance

As of Sep 14, 2026

31.9%Verified-email coverage

16.2Average contacts per company

1-10Median size (employees)

2302.7%Largest-city concentration · Washington

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for Lansing, so it is reported there. Company counts and contact totals on this page are exact for Lansing, over 37 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among advocacy consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Lansing, United States whose own description of what they do matches “advocacy consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names advocacy consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among advocacy consulting firms, and records with no verified work email. Companies headquartered outside Lansing are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 191 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 14, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Advocacy consulting firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names advocacy consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many advocacy consulting firms are there based in Lansing, United States?

RevenueBase identified 37 advocacy consulting firms headquartered in Lansing, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Public Sector Consultants, headquartered in Lansing, tops this list with the largest team on record.

Which city has the most advocacy consulting firms?

Washington leads with 852 headquartered companies, followed by New York (229) and Chicago (136).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 191 verified decision-maker contacts tracked across these 37 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.