Company lists · Data refreshed November 2026

Top 25 Early intervention specialists worldwide

RevenueBase identified 3,202 company matches for early intervention specialists worldwide as of November 2026 and tracks 49,232 professional contacts across them, including 12,914 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for early intervention specialists 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 November 6, 2026. Country and city lists for early intervention specialists 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 Nov 6, 2026 How this list was built
3,202Companies
49,232Contacts tracked
12,914Verified emails
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The 25 largest early intervention specialists worldwide

Ranked by team size
Top 25 of 3,202 company matches for early intervention specialists worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAlameda, CA, United StatesHQ recorded Nov 6, 20261,001-5,0001,029 contacts →

Exact match

“Center for Social Dynamics (CSD) is an organization providing services to those with developmental delays, including autism, in the state of California, Oregon, Washington…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchJohnston, IA, United StatesHQ recorded Nov 6, 20261,001-5,000810 contacts →

Exact match

“ChildServe knows kids and we know specialty healthcare.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchManalapan, NJ, United StatesHQ recorded Nov 6, 20261,001-5,000644 contacts →

Exact match

“Sunny Days, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchGlebe, AustraliaHQ recorded Nov 6, 2026501-1,000591 contacts →

Exact match

“SDN Children’s Services is a for-purpose, not for profit organisation that has been delivering quality early childhood education and child care, children's therapies and family…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSydney, AustraliaHQ recorded Nov 6, 20261,001-5,000570 contacts →

Exact match

“At KU, children have a voice.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchDallas, TX, United StatesHQ recorded Nov 6, 20261,001-5,000547 contacts →

Exact match

“Helping children thrive, one milestone at a time.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadison, WI, United StatesHQ recorded Nov 6, 2026501-1,000390 contacts →

Exact match

“Locations in Madison, Milwaukee, Green Bay, and Eau Claire!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHindmarsh, AustraliaHQ recorded Nov 6, 2026501-1,000385 contacts →

Exact match

“Novita is one of South Australia’s largest community-based disability services organisation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWestbury, NY, United StatesHQ recorded Nov 6, 2026501-1,000335 contacts →

Exact match

“At Family of Kidz, we bring together highly qualified teams of professionals that work diligently to help individuals with special needs, from birth through adulthood.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWest Perth, AustraliaHQ recorded Nov 6, 2026501-1,000330 contacts →

Exact match

“Early Start Australia is a national organisation committed to delivering evidence-based best practice early intervention and therapy services to children, young adults and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAssen, NetherlandsHQ recorded Nov 6, 2026201-500326 contacts →

Exact match

“Yorneo | jeugd- en opvoedhulp Thuis in opvoeden en opgroeien Bij Yorneo kun je terecht als je zorgen hebt over de ontwikkeling van een kind of het gedrag dat een kind vertoont.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHengelo, NetherlandsHQ recorded Nov 6, 2026201-500295 contacts →

Exact match

“Jarabee versterkt!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPlainview, United StatesHQ recorded Nov 6, 20261,001-5,000261 contacts →

Exact match

“All About Kids was founded by Cathy Grossfeld in 1988, later joined by her husband Michael who are both New York State licensed Speech-Language Pathologists and have over 60 years…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWalnut Creek, CA, United StatesHQ recorded Nov 6, 2026201-500258 contacts →

Exact match

“For more than 90 years, Easterseals Northern California has provided services to people with disabilities and their families to help them achieve their goals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWaterloo, ON, CanadaHQ recorded Nov 6, 2026201-500257 contacts →

Exact match

“At KidsAbility, we support over children and youth to reach their communication, social, physical and behavioural goals each year.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchFort Lauderdale, FL, United StatesHQ recorded Nov 6, 202651-200243 contacts →

Exact match

“Family Central Inc.(FCI) is a comprehensive, accredited, and multi-cultural social service agency serving children and families in South Florida.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBellevue, WA, United StatesHQ recorded Nov 6, 2026201-500213 contacts →

Exact match

“Kindering embraces children of diverse abilities and their families by providing the finest education and therapies to nurture hope, courage, and the skills to soar.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLondon, ON, CanadaHQ recorded Nov 6, 2026201-500208 contacts →

Exact match

“Since 1949, TVCC (formerly Thames Valley Children's Centre) has been working with children and youth with physical disabilities, communication disorders, developmental delays and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchEvansville, IN, United StatesHQ recorded Nov 6, 2026201-500203 contacts →

Exact match

“Ireland Home Based Services has worked in the counties of Southern Indiana providing quality home-based services for over 25 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBrugge, BelgiumHQ recorded Nov 6, 20261,001-5,000199 contacts →

Exact match

“Vzw De Kade begeleidt personen met een beperking of ontwikkelingsstoornis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchFramingham, MA, United StatesHQ recorded Nov 6, 2026501-1,000191 contacts →

Exact match

“Thom Child and Family Services works with over infants, toddlers, and their families throughout Massachusetts – providing critical Early Intervention and related services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSacramento, CA, United StatesHQ recorded Nov 6, 2026201-500191 contacts →

Exact match

“The Sacramento Children's Home is opening doors to the future by maximizing the potential of children and families.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchProvidence, MA, United StatesHQ recorded Nov 6, 2026201-500182 contacts →

Exact match

“Meeting Street is where children of all abilities - birth to age 22 - receive individualized services from highly trained and dedicated educators, therapists, and allied…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchCulver City, CA, United StatesHQ recorded Nov 6, 2026201-500169 contacts →

Exact match

“The mission of the Exceptional Children's Foundation (ECF) is to provide the highest quality services for children and adults who are challenged with special needs – empowering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchRotterdam, NetherlandsHQ recorded Nov 6, 202651-200168 contacts →

Exact match

“CityKids geeft bijzondere kinderen de aandacht en ruimte om zich te ontwikkelen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 3,202 early intervention specialists worldwide

See the full list, filter by size, metro and specialty, and access 12,914 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Early intervention specialists worldwide at a glance

As of Nov 6, 2026
26.2%Verified-email coverage
15.4Average contacts per company
11-50Median size (employees)
1.5%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,470
11-50
1,148
51-200
410
201-500
83
501-1,000
31
1,001-5,000
11
10001+
3

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 early intervention specialists are linked below.
What qualifies
Company records worldwide whose business descriptions match “early intervention specialists” 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 12,914 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 November 6, 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.

Early intervention specialists by location

11 lists · largest first

Every Early intervention specialists 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 “early intervention specialists”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many early intervention specialists are there worldwide?

RevenueBase identified 3,202 company matches for early intervention specialists worldwide as of November 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?

Center For Social Dynamics tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most early intervention specialists?

The United States leads with 1,280 companies, followed by Australia (224) and India (202). Every early intervention specialists list by country and city is linked on this page.

Which city has the most early intervention specialists?

New York leads with 49 company records, followed by Hyderabad (25) and Singapore (23).

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 12,914 professional contacts with verified work emails tracked across these 3,202 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 November 6, 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.