Company lists · Data refreshed September 2026

Top 25 Investment banking advisory firms worldwide

Name: Investment banking advisory firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 15,991 companies tracked

RevenueBase identified 15,991 investment banking advisory firms worldwide as of September 2026 and tracks 302,253 professional contacts across them, including 106,163 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers investment banking advisory firms worldwide, 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 17, 2026. Country and city lists for investment banking advisory firms follow the table.

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 17, 2026 86% judged on-target in blind review

15,991Companies

302,253Contacts tracked

106,163Verified emails

0Mobile numbers

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The 25 largest investment banking advisory firms worldwide

Ranked by team size

Top 25 of 15,991 investment banking advisory firms worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to investment banking advisory 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	Barclays Investment Bank	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	10001+	20,783 contacts →
	Partial evidence “Barclays Investment Bank deploys financial solutions to help our clients with their funding, financing, strategic and risk management needs across sectors, markets and economies.” Source: RevenueBase Database · checked Sep 17, 2026
2	Natixis Corporate & Investment Banking	Strong evidence	Paris, FranceHQ checked Sep 17, 2026	5,001-10,000	11,823 contacts →
	Strong evidence “Natixis Corporate & Investment Banking is a leading global financial institution that provides advisory, investment banking, financing, corporate banking and capital markets…” Source: RevenueBase Database · checked Sep 17, 2026
3	RBC Capital Markets	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	5,001-10,000	10,594 contacts →
	Indirect evidence “RBC Capital Markets is recognized by the most significant corporations, institutional investors, asset managers, private equity firms, and governments around the globe as an…” Source: RevenueBase Database · checked Sep 17, 2026
4	Jefferies	Strong evidence	New York City, NY, United StatesHQ checked Sep 17, 2026	5,001-10,000	7,353 contacts →
	Strong evidence “Jefferies is a leading global, full-service investment banking and capital markets firm that provides advisory, sales and trading, research and wealth and asset management…” Source: RevenueBase Database · checked Sep 17, 2026
5	Stifel Financial Corp	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 17, 2026	5,001-10,000	6,913 contacts →
	Partial evidence “Established in 1890, Stifel, Nicolaus & Company, Incorporated is one of the nation’s premier full-service financial services firms, providing brokerage, trading, investment…” Source: RevenueBase Database · checked Sep 17, 2026
6	CICC	Partial evidence	Beijing, ChinaHQ checked Sep 17, 2026	10001+	5,216 contacts →
	Partial evidence “China International Capital Corporation Limited (CICC, 03908.HK601995.SH) is a top tier investment bank, founded in China in 1995, providing first-class financial services to…” Source: RevenueBase Database · checked Sep 17, 2026
7	Rothschild & CO	Partial evidence	Paris, ItalyHQ checked Sep 17, 2026	1,001-5,000	5,161 contacts →
	Partial evidence “Rothschild & Co is one of the world's largest independent financial advisory groups.” Source: RevenueBase Database · checked Sep 17, 2026
8	Itau BBA	Partial evidence	São Paulo, BrazilHQ checked Sep 17, 2026	1,001-5,000	4,707 contacts →
	Partial evidence “Itaú BBA is Latin America's largest corporate investment bank and its part of the Itaú Unibanco group, one of the largest financial conglomerates in the world.” Source: RevenueBase Database · checked Sep 17, 2026
9	Lazard	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,912 contacts →
	Partial evidence “Founded in 1848, Lazard is the preeminent financial advisory and asset management firm, with operations in North and South America, Europe, the Middle East, Asia, and Australia.” Source: RevenueBase Database · checked Sep 17, 2026
10	Houlihan Lokey	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,576 contacts →
	Partial evidence “Houlihan Lokey, Inc.(NYSE:HLI) is a leading global investment bank recognized for delivering independent strategic and financial advice to corporations, financial sponsors, and…” Source: RevenueBase Database · checked Sep 17, 2026
11	Evercore	Strong evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,296 contacts →
	Strong evidence “Evercore (NYSE: EVR) is a premier global independent investment banking advisory firm.” Source: RevenueBase Database · checked Sep 17, 2026
12	William Blair	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,324 contacts →
	Strong evidence “William Blair is the premier global partnership with expertise in investment banking, investment management, private wealth management, institutional sales and trading, and equity…” Source: RevenueBase Database · checked Sep 17, 2026
13	TENEO	Partial evidence	New York City, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,930 contacts →
	Partial evidence “Teneo is the global CEO advisory firm.” Source: RevenueBase Database · checked Sep 17, 2026
14	Iifl Capital Services Limited	Strong evidence	Mumbai, IndiaHQ checked Sep 17, 2026	1,001-5,000	1,878 contacts →
	Strong evidence “IIFL Capital is a full-service financial institution, integrating Wealth Management, Investment Banking, and Institutional Equities on a research-driven platform.” Source: RevenueBase Database · checked Sep 17, 2026
15	Guggenheim Partners	Strong evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,748 contacts →
	Strong evidence “Guggenheim Partners is a global investment and advisory firm.” Source: RevenueBase Database · checked Sep 17, 2026
16	Moelis & Company	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,742 contacts →
	Partial evidence “Moelis & Company (“Moelis”) is a leading global independent investment bank that provides innovative strategic advice and solutions to a diverse client base, including…” Source: RevenueBase Database · checked Sep 17, 2026
17	Lincoln International	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,489 contacts →
	Strong evidence “Lincoln International, Inc.(NYSE: LCLN) is a trusted investment banking advisor to business owners and senior executives of leading private equity firms and their portfolio…” Source: RevenueBase Database · checked Sep 17, 2026
18	IS Investment	Strong evidence	İstanbul, TürkiyeHQ checked Sep 17, 2026	501-1,000	1,463 contacts →
	Strong evidence “IS Investment was established in 1996 as the investment banking arm of Isbank in Istanbul.” Source: RevenueBase Database · checked Sep 17, 2026
19	PJT Partners	Strong evidence	New York, NY, United StatesHQ checked Sep 17, 2026	501-1,000	1,420 contacts →
	Strong evidence “PJT Partners is a premier, global, advisory-focused investment bank that was built from the ground up to be different.” Source: RevenueBase Database · checked Sep 17, 2026
20	Allianz Bank Financial Advisors	Indirect evidence	Milano, ItalyHQ checked Sep 17, 2026	501-1,000	1,413 contacts →
	Indirect evidence “All’avanguardia da 50 anni, per dare giusto valore al tempo.” Source: RevenueBase Database · checked Sep 17, 2026
21	STOUT	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,345 contacts →
	Partial evidence “Stout is a global advisory firm specializing in corporate finance, accounting and transaction advisory, valuation, financial disputes, claims, and investigations.” Source: RevenueBase Database · checked Sep 17, 2026
22	Stephens	Indirect evidence	Little Rock, AR, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,345 contacts →
	Indirect evidence “Founded in 1933, Stephens is a family of privately-held, independent financial services firms focused on building value for companies, state and local governments, institutions…” Source: RevenueBase Database · checked Sep 17, 2026
23	Ambit Private Limited	Strong evidence	Mumbai, IndiaHQ checked Sep 17, 2026	1,001-5,000	1,344 contacts →
	Strong evidence “Ambit is a leading provider of financial advice and capital offering customized solutions in the areas of Investment Banking (Corporate Finance and Equity Capital Markets)…” Source: RevenueBase Database · checked Sep 17, 2026
24	HJ Sims	Strong evidence	Fairfield, CT, United StatesHQ checked Sep 17, 2026	n/a	1,325 contacts →
	Strong evidence “Founded in 1935, HJ Sims offers wealth management, investment banking, trading, underwriting & institutional services.” Source: RevenueBase Database · checked Sep 17, 2026
25	BOCI	Partial evidence	Central, Hong KongHQ checked Sep 17, 2026	1,001-5,000	1,255 contacts →
	Partial evidence “BOCI was one of the first investment banks established in China and is one of the biggest and strongest China-invested banks in overseas markets.” Source: RevenueBase Database · checked Sep 17, 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: investment banking advisory 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 investment banking advisory firms.
Partial evidence: Its own public description names part of investment banking advisory firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name investment banking advisory 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 15,991 investment banking advisory firms worldwide

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Investment banking advisory firms worldwide at a glance

As of Sep 17, 2026

35.1%Verified-email coverage

18.9Average contacts per company

1-10Median size (employees)

5.3%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

10,217

11-50

4,566

51-200

785

201-500

215

501-1,000

1,001-5,000

5,001-10,000

10001+

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 investment banking advisory 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.
Coverage: 55 countries, largest first: the United States, India, the United Kingdom, Brazil, France, Australia, Germany, Canada, Spain, the Netherlands and 45 more. Country and city lists for investment banking advisory firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “investment banking advisory 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 investment banking advisory 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 investment banking advisory firms, and records with no verified work email.
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, 106,163 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 17, 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.

Investment banking advisory firms by location

112 lists · largest first

Every Investment banking advisory firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 investment banking advisory 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 investment banking advisory firms are there worldwide?

RevenueBase identified 15,991 investment banking advisory firms worldwide 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?

Barclays Investment Bank, headquartered in New York, tops this list with the largest team on record.

Which country has the most investment banking advisory firms?

The United States leads with 5,224 companies, followed by India (1,597) and the United Kingdom (1,275). Every investment banking advisory firms list by country and city is linked on this page.

Which city has the most investment banking advisory firms?

London leads with 853 headquartered companies, followed by New York (778) and Mumbai (430).

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 106,163 verified decision-maker contacts tracked across these 15,991 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 17, 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.