Company lists · Data refreshed September 2026

Top 25 Infrastructure software pr firms worldwide

Name: Infrastructure software pr firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 20,622 companies tracked

RevenueBase identified 20,622 company matches for infrastructure software pr firms worldwide as of September 2026 and tracks 157,500 professional contacts across them, including 49,256 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for infrastructure software pr firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026. Country and city lists for infrastructure software pr firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

20,622Companies

157,500Contacts tracked

49,256Verified emails

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The 25 largest infrastructure software pr firms worldwide

Ranked by team size

Top 25 of 20,622 company matches for infrastructure software pr firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Edelman	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	5,001-10,000	6,242 contacts →
	Exact match “Edelman is a global communications firm that partners with businesses and organizations to evolve, promote and protect their brands and reputations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Weber Shandwick	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	4,191 contacts →
	Exact match “Weber Shandwick is the earned-first global communications agency.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Adfactors PR	Exact match	Mumbai, IndiaHQ recorded Sep 28, 2026	1,001-5,000	1,920 contacts →
	Exact match “Adfactors PR, founded in 1997, is India's largest Public Relations firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	MSL Global	Exact match	Paris, United KingdomHQ recorded Sep 28, 2026	1,001-5,000	939 contacts →
	Exact match “MSL is the most powerful influence engine for brands, companies and leaders.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Zeno Group	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	887 contacts →
	Exact match “Zeno Group is the fiercely independent and global, integrated communications agency, born from PR.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Ruder Finn	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	815 contacts →
	Exact match “Ruder Finn is one of the world’s largest global independent integrated marketing and communications agencies, leading at the intersection of technology, human creativity, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	FRAU	Exact match	SwedenHQ recorded Sep 28, 2026	n/a	678 contacts →
	Exact match “FRAU offers strategic PR and project management.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Insights Success Media	Exact match	Dublin, OH, United StatesHQ recorded Sep 28, 2026	201-500	628 contacts →
	Exact match “Insights Success Media is a global powerhouse for business media and the benchmark for corporate supremacy elevating brands and fueling business growth.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Atrevia	Exact match	Madrid, SpainHQ recorded Sep 28, 2026	501-1,000	623 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Prosek Partners	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	201-500	543 contacts →
	Exact match “Prosek Partners builds – and protects – the top brands in business.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Hunter	Exact match	New York, United StatesHQ recorded Sep 28, 2026	201-500	482 contacts →
	Exact match “HUNTER is an award-winning, integrated marketing communications firm with offices in New York, Los Angeles, Chicago, and London and partnerships that extend our reach globally.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Avian We	Exact match	New Delhi, IndiaHQ recorded Sep 28, 2026	201-500	457 contacts →
	Exact match “About Avian We.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	The Hoffman Agency	Exact match	San Jose, CA, United StatesHQ recorded Sep 28, 2026	201-500	441 contacts →
	Exact match “Defining communications broadly to include digital, content marketing, thought leadership as well as traditional PR, The Hoffman Agency knows how to differentiate brands and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	CFC BIG Ideas	Exact match	Kyiv, UkraineHQ recorded Sep 28, 2026	n/a	414 contacts →
	Exact match “СFC Big Ideas is a communications agency specializing in international projects, government relations & PR.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	5wpr	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	201-500	397 contacts →
	Exact match “5WPR is one of the largest independently owned PR and digital marketing agencies in the US.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Mikeworldwide	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	51-200	381 contacts →
	Exact match “MWW is one of the world’s leading independent, integrated PR agencies with offices across the US and UK, and a global network of partners.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	HSL	Exact match	East Sussex, United KingdomHQ recorded Sep 28, 2026	n/a	367 contacts →
	Exact match “HSL is a hard-working and creative PR and marketing communications agency.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Sunshine Sachs Morgan & Lylis	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	201-500	364 contacts →
	Exact match “Sunshine Sachs Morgan & Lylis is an independent, full-service firm specializing in communications and narrative strategy.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	DKC	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	201-500	349 contacts →
	Exact match “DKC is a full service public relations, marketing and government affairs firm and part of the Acceleration Community of Companies, Based in New York City, and with offices in Los…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	PR Pundit Havas RED	Exact match	Gurgaon, IndiaHQ recorded Sep 28, 2026	51-200	306 contacts →
	Exact match “PR Pundit Havas Red, part of the Havas Group (one of the world’s largest advertising and communication networks), is an award-winning integrated communications consultancy with a…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Berlinrosen, An Orchestra Company	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	201-500	302 contacts →
	Exact match “Built to operate with the speed and intensity of a political campaign, BerlinRosen takes a 360-degree approach to communications, activating audiences and elevating story above…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Reingold, INC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 28, 2026	201-500	282 contacts →
	Exact match “Reingold is a full-service strategic communications and marketing firm, helping clients tell stories that get results.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Premier	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	272 contacts →
	Exact match “Creative communications for entertainment, arts and culture.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	V360 Group	Exact match	Okhla, IndiaHQ recorded Sep 28, 2026	201-500	267 contacts →
	Exact match “Value 360 Communications is India’s first PR Company with a focussed approach for early stage business.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Hotwire	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	201-500	257 contacts →
	Exact match “Hotwire Global is the preeminent tech PR, communications, and marketing consultancy.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “infrastructure software pr firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 20,622 infrastructure software pr firms worldwide

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Infrastructure software pr firms worldwide at a glance

As of Sep 28, 2026

31.3%Verified-email coverage

7.6Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

15,458

11-50

4,462

51-200

525

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for infrastructure software pr firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “infrastructure software pr firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 49,256 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Infrastructure software pr firms by location

133 lists · largest first

Every Infrastructure software pr 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “infrastructure software pr firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure software pr firms are there worldwide?

RevenueBase identified 20,622 company matches for infrastructure software pr firms worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Edelman tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most infrastructure software pr firms?

The United States leads with 6,377 companies, followed by the United Kingdom (1,610) and India (740). Every infrastructure software pr firms list by country and city is linked on this page.

Which city has the most infrastructure software pr firms?

London leads with 610 company records, followed by New York (578) and Los Angeles (287).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 49,256 professional contacts with verified work emails tracked across these 20,622 companies; direct dials are available where recorded.

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.

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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 SmartSearch, 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.