Company lists · Data refreshed September 2026

Top 25 Outreach agencies based in the United States

RevenueBase identified 3,865 outreach agencies headquartered in the United States as of September 2026 and tracks 227,115 professional contacts across them, including 63,570 with verified work emails. New York is the largest hub.

This list covers outreach agencies 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 21, 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 21, 2026 86% judged on-target in blind review
3,865Companies
227,115Contacts tracked
63,570Verified emails
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The 25 largest outreach agencies based in the United States

Ranked by team size
Top 25 of 3,865 outreach agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to outreach agencies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSanta Ana, CA, United StatesHQ checked Sep 21, 2026n/a12,023 contacts →

Indirect evidence

“Casa de la Familia (CDLF) is a 501(c)(3) non-profit organization founded in 1996 by Clinical Psychologist Dr.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceTallahassee, FL, United StatesHQ checked Sep 21, 202610001+4,525 contacts →

Indirect evidence

“The Florida Department of Children and Families consists of more than more than employees across the state whose mission it is to protect the vulnerable, promote strong and…”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceAlexandria, VA, United StatesHQ checked Sep 21, 202610001+4,505 contacts →

Indirect evidence

“At Volunteers of America, we are more than a nonprofit organization.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceSeattle, WA, United StatesHQ checked Sep 21, 20261,001-5,0001,756 contacts →

Indirect evidence

“WE BELIEVE … in compassion, love and respect for all people, especially those who are poor and vulnerable.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceGarden City, NY, United StatesHQ checked Sep 21, 20261,001-5,0001,632 contacts →

Indirect evidence

“SCO Family of Services helps New Yorkers build a strong foundation for the future.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceFort Worth, TX, United StatesHQ checked Sep 21, 20261,001-5,0001,543 contacts →

Indirect evidence

“At MHMR of Tarrant County we change lives.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceMiddleton, WI, United StatesHQ checked Sep 21, 2026n/a1,524 contacts →

Indirect evidence

“WayForward Resources provides access to nutritious food for all Dane County residents and support that helps people stay in their homes in Middleton, Cross Plains and parts of…”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 21, 20261,001-5,0001,502 contacts →

Indirect evidence

“Resources for Human Development is a comprehensive human services organization based in Philadelphia.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceNew York, United StatesHQ checked Sep 21, 2026501-1,0001,352 contacts →

Indirect evidence

“Born out of the AIDS crisis in New York City, Housing Works is a healing community that fights for inclusive care, social justice, and an end to homelessness.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceNew York, United StatesHQ checked Sep 21, 20261,001-5,0001,306 contacts →

Indirect evidence

“Good Shepherd Services goes where children, youth, and families face the greatest challenges and builds on their strengths to help them gain skills for success.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 20261,001-5,0001,298 contacts →

Indirect evidence

“Thresholds provides healthcare, housing, and hope for thousands of persons with mental health and substance use conditions in Illinois each year.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceNeedham, MA, United StatesHQ checked Sep 21, 20261,001-5,0001,291 contacts →

Indirect evidence

“Justice Resource Institute is dedicated to addressing the most confounding challenges of both the human services and educational systems and the persons and families these systems…”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceBrooklyn, United StatesHQ checked Sep 21, 20261,001-5,0001,288 contacts →

Indirect evidence

“CAMBA serves nearly individuals and families each year, citywide, including over youth.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceLexington, MA, United StatesHQ checked Sep 21, 20261,001-5,0001,281 contacts →

Indirect evidence

“For over 70 years, Eliot has been providing hope, healing and opportunity to children, youth, families, and adults throughout Massachusetts.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceOrlando, FL, United StatesHQ checked Sep 21, 20261,001-5,0001,231 contacts →

Indirect evidence

“When children and families face hard situations, we empower them to find – and pursue – opportunities for success and happiness.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceSan Antonio, TX, United StatesHQ checked Sep 21, 20261,001-5,0001,137 contacts →

Indirect evidence

“Endeavors is a national service organization that serves our communities’ most vulnerable populations.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceWilliamsville, NY, United StatesHQ checked Sep 21, 20261,001-5,0001,089 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 20261,001-5,0001,088 contacts →

Indirect evidence

“Services for the UnderServed (S:US) believes every New Yorker has the right to lead a life of purpose.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 20261,001-5,0001,038 contacts →

Indirect evidence

“At The New York Foundling, we believe that all people-no matter circumstance or zip code-have the opportunity to reach their full potential.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceRochester, NY, United StatesHQ checked Sep 21, 20261,001-5,000977 contacts →

Indirect evidence

“Heritage Christian Services partners with thousands of people throughout Rochester and Buffalo to ensure everyone – including children and people with developmental disabilities –…”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceCincinnati, OH, United StatesHQ checked Sep 21, 2026501-1,000971 contacts →

Indirect evidence

“We're a government social services agency in Hamilton County, Ohio.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 20261,001-5,000968 contacts →

Indirect evidence

“Metropolitan Family Services empowers families to learn, to earn, to heal and to thrive.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceBronx, NY, United StatesHQ checked Sep 21, 20261,001-5,000943 contacts →

Indirect evidence

“Acacia Network is a leading human services organization in New York City and one of the largest Hispanic-led nonprofits in the State, providing integrated, culturally-competent…”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceTampa, FL, United StatesHQ checked Sep 21, 20261,001-5,000888 contacts →

Indirect evidence

“Lutheran Services Florida (LSF) is a non-profit organization transforming lives by ensuring safe children, strong families, and vibrant communities.”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceSpringfield, MA, United StatesHQ checked Sep 21, 20261,001-5,000883 contacts →

Indirect evidence

“The Center for Human Development, Inc.(CHD) provides a broad range of high quality, community-oriented human services dedicated to promoting, enhancing, and protecting the dignity…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 3,865 outreach agencies based in the United States

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Outreach agencies based in the United States at a glance

As of Sep 21, 2026
28.0%Verified-email coverage
58.8Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · New York
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
1,318
11-50
1,172
51-200
808
201-500
340
501-1,000
121
1,001-5,000
82
5,001-10,000
5
10001+
8

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 3,865 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 outreach agencies, 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 “outreach agencies”. 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 outreach agencies), 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 outreach agencies, 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, 63,570 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 21, 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.

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 outreach agencies, 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 outreach agencies are there based in the United States?

RevenueBase identified 3,865 outreach agencies 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?

Casa DE LA Familia, headquartered in Santa Ana, tops this list with the largest team on record.

Which city has the most outreach agencies?

New York leads with 96 headquartered companies, followed by Los Angeles (72) and Chicago (63).

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 63,570 verified decision-maker contacts tracked across these 3,865 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 21, 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.