Company lists · Data refreshed September 2026
Top 25 Registered dietitian services worldwide
RevenueBase identified 1,848 registered dietitian services worldwide as of September 2026 and tracks 7,876 professional contacts across them, including 1,579 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers registered dietitian services 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 21, 2026. Country and city lists for registered dietitian services 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.
The 25 largest registered dietitian services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 270 contacts → | ||||
Indirect evidence “About NutraCo:** NutraCo is dedicated to enhancing the quality of nutritional care across long-term care facilities nationwide.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 255 contacts → | ||||
Indirect evidence “Berry Street is on a mission to transform how Americans eat through nutrition therapy.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 233 contacts → | ||||
Partial evidence “Consult with award-winning dietitians and nutritionists at Qua Nutrition – Signature Nutrition Clinic.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 225 contacts → | ||||
Strong evidence “Dietitians On Demand is an industry leader in nationwide clinical nutrition consulting services, providing registered dietitians in hospitals, long-term care facilities, dialysis…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 99 contacts → | ||||
Partial evidence “Seasons Care Dietitian Network is Canada’s Largest Dietitian Network.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 87 contacts → | ||||
Indirect evidence “Dietary Solutions provides comprehensive nutritional and foodservice consulting to health care organizations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 76 contacts → | ||||
Indirect evidence “For over 20 years, Right Bite has been a trusted leader in personalized nutrition, empowering individuals to live healthier, more balanced lives.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 75 contacts → | ||||
Indirect evidence “Diëtheek is een organisatie van en door diëtisten, die wil adviseren, begeleiden en ondersteunen bij het gebruik van de juiste voeding.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 69 contacts → | ||||
Indirect evidence “Nutrition Plus is a consulting group with specialties in several areas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 64 contacts → | ||||
Indirect evidence “About Nutrition Therapy Essentials Nutrition Therapy Essentials (NTE) in San Jose was founded by Suzanne Ousey in 2012 after more than 25 years of experience in the field of…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 61 contacts → | ||||
Strong evidence “Nutrition that Works, LLC is a Registered Dietitian Consultant company.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 51 contacts → | ||||
Indirect evidence “Le plus grand réseau de nutritionnistes-diététistes au Québec; • 80 cliniques à travers la province de Québec; • Plus de 40 nutritionnistes-diététistes à temps partiel et à temps…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 50 contacts → | ||||
Indirect evidence “Diet Delights stands as a pioneering nutrition center in Qatar, earning trust since 2012 by guiding countless individuals toward their weight and health goals.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 47 contacts → | ||||
Indirect evidence “AM Nutrition Services was founded in 2007 in order to provide MNT to children and adults in a private practice setting.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 45 contacts → | ||||
Strong evidence “We are a team of registered dietitians specializing in individualized nutrition therapy.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 41 contacts → | ||||
Strong evidence “Claxton Dietetic Solutions, LLC was founded in response to healthcare communities seeking quality registered dietitians on a consultant basis.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 41 contacts → | ||||
Strong evidence “All Access Dietitians is a group practice of registered dietitians and health coaches.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 40 contacts → | ||||
Indirect evidence “WHO WE ARE We offer life-changing nutrition education to anyone wanting a healthier life.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 36 contacts → | ||||
Partial evidence “Sylvan Health makes affordable, personalized nutrition counseling accessible by providing dietitians, healthcare providers, and patients with the tools needed to improve clinical…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 36 contacts → | ||||
Strong evidence “Case Specific Nutrition (CSN) is a group of passionate, Registered Dietitians (RDs) who help people achieve their health and wellness goals using person-centered nutrition…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 35 contacts → | ||||
Indirect evidence “Live’ly is a specialized health and nutrition establishment launched in Dubai in 2005 and has currently extended to several other Arab cities.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 33 contacts → | ||||
Indirect evidence “Somos una empresa dedicada a brindar consulta nutricional individualizada con el fin de prevenir o tratar alguna enfermedad o trastorno, y así mejorar su calidad de vida de las…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 28 contacts → | ||||
Partial evidence “Doherty Nutrition provides one-on-one nutrition counseling and has dietitians specialized in medical nutrition therapy, diabetes, pediatrics, oncology, sports nutrition, eating…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 28 contacts → | ||||
Indirect evidence “Diætisthuset er Danmarks førende og mest erfarne diætisthuse, med klinikker fordelt over hele landet.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 26 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: registered dietitian services. 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 registered dietitian services.
- Partial evidence
- Its own public description names part of registered dietitian services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name registered dietitian services. 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 1,848 registered dietitian services worldwide
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Registered dietitian services worldwide at a glance
As of Sep 21, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 registered dietitian services, 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
- Every country. Country and city lists for registered dietitian services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “registered dietitian services”. 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 registered dietitian services), 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 registered dietitian services, 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, 1,579 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.
Registered dietitian services by location
4 lists · largest firstEvery Registered dietitian services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 registered dietitian services, 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 registered dietitian services are there worldwide?
RevenueBase identified 1,848 registered dietitian services 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?
Nutraco, headquartered in Hollywood, tops this list with the largest team on record.
Which country has the most registered dietitian services?
The United States leads with 538 companies, followed by the Netherlands (139) and Australia (114). Every registered dietitian services list by country and city is linked on this page.
Which city has the most registered dietitian services?
New York leads with 28 headquartered companies, followed by Sao Paulo (18) and London (16).
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 1,579 verified decision-maker contacts tracked across these 1,848 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.