Company lists · Data refreshed September 2026

Top 25 Investor relations consultancies based in the United States

Name: Investor relations consultancies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 477 companies tracked

RevenueBase identified 477 investor relations consultancies headquartered in the United States as of September 2026 and tracks 12,239 professional contacts across them, including 3,098 with verified work emails. New York is the largest hub.

This list covers investor relations consultancies headquartered in the 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 28, 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 28, 2026 86% judged on-target in blind review

477Companies

12,239Contacts tracked

3,098Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest investor relations consultancies based in the United States

Ranked by team size

Top 25 of 477 investor relations consultancies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to investor relations consultancies: 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	Nerium International	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	n/a	5,567 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
2	Notified	Indirect evidence	New York, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	959 contacts →
	Indirect evidence “We are Notified, and your story goes here.” Source: RevenueBase Database · checked Sep 28, 2026
3	ICR	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	693 contacts →
	Indirect evidence “ICR is a strategic communications and advisory firm that helps management teams align how they communicate with how markets think.” Source: RevenueBase Database · checked Sep 28, 2026
4	Prosek Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	543 contacts →
	Indirect evidence “Prosek Partners builds – and protects – the top brands in business.” Source: RevenueBase Database · checked Sep 28, 2026
5	Sodali & CO	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	431 contacts →
	Indirect evidence “Sodali & Co advises corporate clients worldwide as they navigate the complex dynamic of shareholder and stakeholder interests.” Source: RevenueBase Database · checked Sep 28, 2026
6	Alliance Advisors	Indirect evidence	Little Falls, NJ, United StatesHQ checked Sep 28, 2026	51-200	177 contacts →
	Indirect evidence “Alliance Advisors is an independent advisory firm focused on Shareholder Engagement & Solicitation, Compensation Advisory, Governance & Sustainability Advisory, M&A - Activism…” Source: RevenueBase Database · checked Sep 28, 2026
7	Kcsa Strategic Communications	Partial evidence	New York, United StatesHQ checked Sep 28, 2026	11-50	102 contacts →
	Partial evidence “KCSA is a fully integrated communications agency specializing in public relations, shareholder communications and social media, with expertise in cannabis, financial and…” Source: RevenueBase Database · checked Sep 28, 2026
8	Lambert	Strong evidence	Grand Rapids, MI, United StatesHQ checked Sep 28, 2026	51-200	99 contacts →
	Strong evidence “Founded in 1998, Lambert is a strategic communications and advisory firm specializing in public relations, investor relations and integrated marketing.” Source: RevenueBase Database · checked Sep 28, 2026
9	Rivel, INC	Indirect evidence	Westport, CT, United StatesHQ checked Sep 28, 2026	51-200	96 contacts →
	Indirect evidence “For 30+ years, this mindset has fueled Rivel’s commitment to providing companies with actionable insights and advisory solutions that elevate performance and support informed…” Source: RevenueBase Database · checked Sep 28, 2026
10	Mediant	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	96 contacts →
	Partial evidence “Mediant, a BetaNXT business, delivers investor communications solutions to brokers, corporate issuers and funds.” Source: RevenueBase Database · checked Sep 28, 2026
11	Lifesci Advisors, LLC	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	90 contacts →
	Strong evidence “LifeSci Advisors is a unique investor relations consultancy founded to provide companies in the life sciences field with a comprehensive solution to investor communications and…” Source: RevenueBase Database · checked Sep 28, 2026
12	H Advisors Abernathy	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	86 contacts →
	Partial evidence “H/Advisors Abernathy is a trusted strategic communications advisor that partners with companies, investment firms and other organizations to engage core stakeholders as they…” Source: RevenueBase Database · checked Sep 28, 2026
13	Access Newswire	Strong evidence	Raleigh, NC, United StatesHQ checked Sep 28, 2026	51-200	83 contacts →
	Strong evidence “ACCESS Newswire is a leading communications and compliance company, providing solutions for both Public Relations and Investor Relations Professionals.” Source: RevenueBase Database · checked Sep 28, 2026
14	Innisfree M&a Incorporated	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	79 contacts →
	Partial evidence “Innisfree delivers shareholder intelligence, strategic advice and solicitation execution services to the world's leading corporations and investors when it matters most.” Source: RevenueBase Database · checked Sep 28, 2026
15	Corbin Advisors	Strong evidence	Farmington, CT, United StatesHQ checked Sep 28, 2026	51-200	78 contacts →
	Strong evidence “Corbin Advisors is a strategic investor relations and investor communications advisory firm with a track record of supporting our publicly traded clients in creating sustained…” Source: RevenueBase Database · checked Sep 28, 2026
16	The Blueshirt Group	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	11-50	60 contacts →
	Strong evidence “The Blueshirt Group has earned its reputation as a leader in investor relations (IR), IPO advisory, financial communications, financial media relations and crisis management.” Source: RevenueBase Database · checked Sep 28, 2026
17	Gilmartin Group LLC	Strong evidence	San Francisco Bay, CA, United StatesHQ checked Sep 28, 2026	51-200	56 contacts →
	Strong evidence “The Gilmartin Group is a strategic consulting firm focused on investor relations, communications and business development for companies across the healthcare and life sciences…” Source: RevenueBase Database · checked Sep 28, 2026
18	Gateway Group	Indirect evidence	Newport Beach, United StatesHQ checked Sep 28, 2026	11-50	48 contacts →
	Indirect evidence “Gateway is a leading financial communications and digital media advisory firm specializing in assisting emerging growth companies for over 25 years.” Source: RevenueBase Database · checked Sep 28, 2026
19	IR Impact	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	44 contacts →
	Strong evidence “IR Impact, formerly IR Magazine, is the global leader in investor relations intelligence, providing IR professionals with the insights, data and connections they need to navigate…” Source: RevenueBase Database · checked Sep 28, 2026
20	Rose & Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	43 contacts →
	Indirect evidence “Rose & Company is a leading independent capital markets advisory firm offering strategic counsel and tailored solutions to help companies increase market valuation.” Source: RevenueBase Database · checked Sep 28, 2026
21	Shelton Group	Strong evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	41 contacts →
	Strong evidence “Shelton Group is a strategic investor relations and public relations firm providing customized programs to public and private companies, with a specific focus on micro and…” Source: RevenueBase Database · checked Sep 28, 2026
22	Capital Link	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	39 contacts →
	Strong evidence “With its headquarters in New York and presence in London, in Athens and in Oslo, Capital Link has been active since 1995 in the field of Investor Relations and Financial…” Source: RevenueBase Database · checked Sep 28, 2026
23	Real Value Capital RVC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	38 contacts →
	Partial evidence “Real Value Capital is a US-based investment company specializing in overseas listings, mergers and acquisitions, corporate financing, strategic management consulting, and equity…” Source: RevenueBase Database · checked Sep 28, 2026
24	Gasthalter & Co. LP	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “Gasthalter & Co.” Source: RevenueBase Database · checked Sep 28, 2026
25	Niri The Association For Investor Relations	Strong evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	n/a	37 contacts →
	Strong evidence “Founded in 1969, NIRI is the professional association of corporate officers and investor relations consultants responsible for communication among corporate management…” Source: RevenueBase Database · checked Sep 28, 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: investor relations consultancies. 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 investor relations consultancies.
Partial evidence: Its own public description names part of investor relations consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name investor relations consultancies. 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 477 investor relations consultancies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,098 reachable decision-makers.

Free signup · no credit card

View the full list →

Investor relations consultancies based in the United States at a glance

As of Sep 28, 2026

25.3%Verified-email coverage

25.7Average contacts per company

1-10Median size (employees)

26.8%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

319

11-50

129

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 477 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 investor relations consultancies, 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 the United States whose own description of what they do matches “investor relations consultancies”. 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 investor relations consultancies), 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 investor relations consultancies, and records with no verified work email. Companies headquartered outside United States 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, 3,098 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 28, 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.

Investor relations consultancies by metro

Investor relations consultancies in New York128

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 investor relations consultancies, 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 investor relations consultancies are there based in the United States?

RevenueBase identified 477 investor relations consultancies headquartered in the 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?

Nerium International, headquartered in Dallas, tops this list with the largest team on record.

Which city has the most investor relations consultancies?

New York leads with 128 headquartered companies, followed by San Francisco (16) and Los Angeles (14).

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 3,098 verified decision-maker contacts tracked across these 477 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 477 investor relations consultancies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Investor relations consultancies by geography

Browse the directory

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.