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Best ABA Therapy Providers in Fontana, CA (2026)

79 ABA therapy providers ranked by RP ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Fontana: ACES ABA - Autism Therapy Center, RP Score 70/100; 5.0★ from 3 Google reviews.

  2. 48

    Most-reviewed: Cortica Irvine, 81 Google reviews at 3.8★, the most of 79 ranked; ranked #48.

Rankings can't be bought. Psychologists can't pay to change their rank or score. How we rank

79 Fontana ABA therapy providers are ranked here by RP Score, from eight published factors. 29 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.4★ across 79 rated practices.

Top 10 ABA therapy providers in Fontana at a glance

Ranked by the RP Score from public listing data, not by treatment outcomes; Sponsored placements are shown separately and never change rank.

Top 10 ABA therapy providers in Fontana at a glance
RankBusinessRP ScoreGoogle ratingBased inHoursBest for
1ACES ABA - Autism Therapy Center705.0★ (3)Ontario, 9 mi away—Overall
2ABS Kids ABA Therapy Center705.0★ (13)San Bernardino, 9 mi awaySat · Evenings—
3Intercare Therapy705.0★ (10)Ontario, 8 mi awaySat · Evenings—
4ACES ABA - Autism Therapy Center694.8★ (80)Pomona, 19 mi awaySat · Evenings—
5ABS Kids ABA Therapy Center683.7★ (3)Rancho Cucamonga, 8 mi awaySat · Evenings—
6ABS Kids ABA Therapy Center684.6★ (16)Riverside, 14 mi awaySat · Evenings—
7ABS Kids ABA Therapy Center684.0★ (3)Riverside, 9 mi awaySat · Evenings—
8Advanced Behavioral Specialists685.0★ (16)Riverside, 9 mi awayEvenings—
9Dream Big Children's Center673.5★ (8)Riverside, 10 mi awaySat—
10ABS Kids ABA Therapy Center674.0★ (4)Rancho Cucamonga, 11 mi awaySat · Evenings—

The 79 best ABA therapy providers in Fontana, ranked

Ordered by RP Score, a 0–100 score from eight published factors. Paid placement never changes the order.

Ranked by the RP Score from public listing data, not by treatment outcomes; Sponsored placements are shown separately and never change rank.

  1. Ranked #1 in Fontana

    Based in Ontario, 9 mi away

    70/100RP Score

    Ranked #1 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 5.0★ from 3 Google reviews.

    Based on 6 of 8 factors; recency and availability not yet collected.

    • 5.0★ from 3 Google reviews
    Address
    2990 Inland Empire Blvd Suites 100 & 101, Ontario, CA 91764
  2. Based in San Bernardino, 9 mi away

    70/100RP Score

    Ranked #2 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 5.0★ from 13 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 5.0★ from 13 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat 9 AM–1 PM · Sun closed
    Address
    1955 S Hunts Ln #100, San Bernardino, CA 92408
  3. Based in Ontario, 8 mi away

    70/100RP Score

    Ranked #3 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 5.0★ from 10 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 5.0★ from 10 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat 8 AM–1 PM · Sun closed
    Address
    3450 N Centre Lake Dr Ste 175, Ontario, CA 91761
  4. Based in Pomona, 19 mi away

    69/100RP Score

    Ranked #4 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.8★ from 80 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 4.8★ from 80 Google reviews
    Hours
    Mon–Fri 8 AM–7:30 PM · Sat 9 AM–5 PM · Sun closed
    Address
    21 Rancho Camino Dr ste 105, Pomona, CA 91766
  5. Based in Rancho Cucamonga, 8 mi away

    68/100RP Score

    Ranked #5 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 3.7★ from 3 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 3.7★ from 3 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat 9 AM–1 PM · Sun closed
    Address
    10601 Church St Ste 112, Rancho Cucamonga, CA 91730
  6. Based in Riverside, 14 mi away

    68/100RP Score

    Ranked #6 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.6★ from 16 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 4.6★ from 16 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat 9 AM–1 PM · Sun closed
    Address
    2799 Gateway Dr #225, Riverside, CA 92507
  7. Based in Riverside, 9 mi away

    68/100RP Score

    Ranked #7 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.0★ from 3 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 4.0★ from 3 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat 9 AM–1 PM · Sun closed
    Address
    1500 Iowa Ave Ste 210, Riverside, CA 92507
  8. Based in Riverside, 9 mi away

    68/100RP Score

    Ranked #8 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 5.0★ from 16 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 5.0★ from 16 Google reviews
    Hours
    Mon–Fri 8:30 AM–7:30 PM · Sat–Sun closed
    Address
    1405 Spruce St Ste A, Riverside, CA 92507
  9. Based in Riverside, 10 mi away

    67/100RP Score

    Ranked #9 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 3.5★ from 8 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 3.5★ from 8 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat 9 AM–1 PM · Sun closed
    Address
    3773 Mccray St, Riverside, CA 92506
  10. Based in Rancho Cucamonga, 11 mi away

    67/100RP Score

    Ranked #10 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.0★ from 4 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 4.0★ from 4 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat 9 AM–1 PM · Sun closed
    Address
    8591 Grove Ave, Rancho Cucamonga, CA 91730
  11. Based in Chino, 16 mi away

    67/100RP Score

    Ranked #11 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.9★ from 8 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 4.9★ from 8 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat 9 AM–1 PM · Sun closed
    Address
    5143 D St, Chino, CA 91710
  12. Based in Rancho Cucamonga, 8 mi away

    66/100RP Score

    Ranked #13 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.3★ from 11 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 4.3★ from 11 Google reviews
    Hours
    Mon–Fri 9 AM–6 PM · Sat–Sun closed
    Address
    10300 Fourth St Ste 240, Rancho Cucamonga, CA 91730
  13. Based in Corona, 16 mi away

    66/100RP Score

    Ranked #14 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.0★ from 8 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 4.0★ from 8 Google reviews
    Hours
    Mon–Fri 8 AM–7:30 PM · Sat 9 AM–5 PM · Sun closed
    Address
    1295 Corona Pointe Ct Suite 102, Corona, CA 92879
  14. Based in Rancho Cucamonga, 8 mi away

    66/100RP Score

    Ranked #16 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 3.2★ from 38 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 3.2★ from 38 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat–Sun closed
    Address
    9600 Center Ave Ste 160, Rancho Cucamonga, CA 91730
  15. Based in Riverside, 11 mi away

    65/100RP Score

    Ranked #19 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 3.9★ from 9 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 3.9★ from 9 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    5005 Canyon Crest Dr, Riverside, CA 92507
  16. Based in Rancho Cucamonga, 10 mi away

    65/100RP Score

    Ranked #20 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 3.1★ from 12 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 3.1★ from 12 Google reviews
    Hours
    Mon–Fri 10 AM–7 PM · Sat–Sun closed
    Address
    9333 Base Line Rd, Rancho Cucamonga, CA 91730
  17. Based in Covina, 25 mi away

    64/100RP Score

    Ranked #21 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.8★ from 19 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 4.8★ from 19 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 7 AM–8 PM · Sun closed
    Address
    1343 N Grand Ave Ste 200, Covina, CA 91724
  18. Based in San Bernardino, 9 mi away

    64/100RP Score

    Ranked #22 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 2.0★ from 4 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 2.0★ from 4 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    437 E Carnegie Dr Suite 200, San Bernardino, CA 92408
  19. Based in Eastvale, 13 mi away

    63/100RP Score

    Ranked #23 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 5.0★ from 3 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 5.0★ from 3 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
  20. Based in Covina, 25 mi away

    63/100RP Score

    Ranked #24 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 3.7★ from 3 Google reviews.

    Based on 6 of 8 factors; recency and availability not yet collected.

    • 3.7★ from 3 Google reviews
    Address
    970 S Village Oaks Dr #103, Covina, CA 91724
  21. Based in Riverside, 13 mi away

    63/100RP Score

    Ranked #25 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 3.7★ from 3 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 3.7★ from 3 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    6235 River Crest Dr Ste O/P, Riverside, CA 92507

ABA therapy providers ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in RP Score order; each links to its profile. We publish the top 50 of 79 ranked ABA therapy providers here; the rest are on their profiles.

ABA therapy providers in Fontana, ranks 26 to 50
RankBusinessRP ScoreGoogle ratingDistance
26ACES ABA - Autism Therapy Center634.7★ (28)31 mi
27The Behavior Lab624.5★ (16)22 mi
28Dream Big Children’s Center614.6★ (9)33 mi
29Center for Skills Development615.0★ (8)37 mi
30Bright Path ABA and Tutoring615.0★ (4)27 mi
31Autism Interventions and Resources, Inc604.0★ (4)36 mi
32Dream Big Children's Center604.7★ (62)33 mi
33Intercare Therapy605.0★ (12)35 mi
34ACES ABA - Autism Therapy Center604.5★ (11)34 mi
35Dream Big Children's Center604.1★ (9)24 mi
36NeuroChamp Educational Psychology & Speech Services595.0★ (13)10 mi
37Accel Therapies - ABA Therapy for Kids594.5★ (15)28 mi
38Listen-2-Me LLC593.8★ (10)35 mi
39Applied Behavior Autism Center594.5★ (11)8 mi
40ACES ABA - Autism Therapy Center583.7★ (9)27 mi
41ACES ABA - Autism Therapy Center583.5★ (30)36 mi
42Connecting Dot By Dot Inc584.8★ (9)29 mi
43ACES ABA - Autism Therapy Center584.4★ (14)39 mi
44360 Behavioral Health584.6★ (20)32 mi
45HEARTS OF ABA584.6★ (11)38 mi
46Kyo Autism Therapy575.0★ (7)32 mi
47ACES ABA - Autism Therapy Center573.8★ (16)40 mi
48Cortica Irvine573.8★ (81)35 mi
49Alongside ABA573.3★ (7)30 mi
50SECDU INNOVATION574.9★ (10)15 mi

Also serving Fontana

20 more ABA therapy providers within 40 mi that we can't rank yet: too few reviews, or a specialty we couldn't confirm. Listed A to Z.

How we ranked Fontana ABA therapy providers

We scored 79 Fontana ABA therapy providers on eight factors, weighted as shown. A practice is ranked when its specialty is confirmed and it has 3 or more Google reviews or a claimed profile. A practice with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 9, 2026.

Paid placement never changes a rank or score. Sponsored businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

RP Score factors and weights
FactorWeightComputed fromIn Fontana data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Review volume5%Number of Google reviews, compared with the most-reviewed practice on the listMeasured
Recency5%Share of Google reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, and round-the-clock or same-day availabilityMeasured
Specialty focus25%How clearly the practice does this specialty (its Google category and name)Measured
Proximity15%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The practice has claimed its Ranked Psychologists profile (free or paid earn the same)Measured
Partnered5%The practice links to Ranked Psychologists from its own website with our badge, checked periodicallyMeasured

How to choose an ABA therapy provider

  1. Check the license with the state or provincial board that issued it; most boards publish a free online lookup.
  2. Make sure ABA therapy is a regular part of their work, and ask what approach they use and why.
  3. Ask how many hours a week they recommend and how they set goals with the family.
  4. Ask how often a BCBA observes sessions and meets with parents.
  5. Ask about fees, insurance and the cancellation policy before the first session. In the US, if you are uninsured or paying yourself, you can ask for a good faith estimate of expected charges.
  6. Check practical fit: in-person or online sessions, evening times, and how soon they have an opening.
  7. After a few sessions, ask yourself whether you feel heard. Changing to a different provider is common and fine.

Questions to ask an ABA therapy provider

  • Are you accepting new clients, and how soon could I start?
  • Which license do you hold, and in which state or province?
  • How much of your work is ABA therapy?
  • Is there a waitlist, and do you accept my insurance?
  • What do you charge per session, and do you take my insurance or provide a superbill?
  • Do you offer online sessions?
  • What is your cancellation policy?
  • What do you keep confidential, and when would you have to share information?

Terms explained

PhD / PsyD
Doctoral degrees in psychology. A PhD usually has a stronger research focus, a PsyD a stronger clinical focus; both can lead to a psychologist license.
Licensed psychologist
A person licensed by a state or provincial psychology board to practice psychology. The title is protected by law.
Psychological associate
In some states and provinces, a master’s-level practitioner licensed or registered by the psychology board, often with supervision requirements.
LPC / LMHC / LCPC
US licenses for professional or mental health counselors (the name differs by state). They provide counseling and therapy.
LCSW
Licensed clinical social worker: a master’s-level social worker licensed to provide therapy.
LMFT
Licensed marriage and family therapist: licensed to treat individuals, couples and families with a focus on relationships.
RP / RCC
Registered psychotherapist (Ontario) and registered clinical counsellor (British Columbia): Canadian titles for licensed therapy providers.
PSYPACT
An interstate agreement that lets psychologists licensed in a member state provide telepsychology to clients in other member states once they hold the required authorization.
Telehealth
Sessions held by secure video or phone instead of in person. The provider generally needs to be licensed where the client is located.
CBT
Cognitive behavioral therapy: a structured talk therapy that works on the links between thoughts, feelings and behavior.
DBT
Dialectical behavior therapy: a form of CBT that teaches skills for managing intense emotions and relationships.
ERP
Exposure and response prevention: a form of CBT used for OCD.

ABA therapy providers in Fontana: frequently asked questions

Who is the best ABA therapy provider in Fontana?

By RP Score, the highest-ranked ABA therapy provider in Fontana, CA is ACES ABA - Autism Therapy Center with an RP Score of 70/100. It has 5.0★ from 3 Google reviews. ABS Kids ABA Therapy Center (#2) and Intercare Therapy (#3) follow. We ranked 79 ABA therapy providers on eight factors, last updated November 9, 2026.

How many ABA therapy providers are there in Fontana?

RankedPsychologists ranks 79 ABA therapy providers serving Fontana, CA. Another 20 within 40 mi are listed but not ranked yet. Counts are as of November 2026.

What should I do if I need help right now?

In crisis or thinking about suicide? Call or text 988 (US and Canada), any time. In an emergency, call 911. This site cannot help in an emergency.

Which ABA therapy providers in Fontana work on weekends?

29 of 79 ranked ABA therapy providers post Saturday hours and 4 post Sunday hours. The highest-ranked open Saturdays are ABS Kids ABA Therapy Center (#2), Intercare Therapy (#3) and ACES ABA - Autism Therapy Center (#4). Posted hours are office hours; many practices also offer evening or online sessions by appointment.

What Google rating do Fontana ABA therapy providers have?

The median Google rating among 79 rated ABA therapy providers in Fontana is 4.4★, with a median of 9 reviews. Cortica Irvine has the most, 81 reviews, and ranks #48. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does RankedPsychologists rank ABA therapy providers?

Each ABA therapy provider gets a 0–100 RP Score from eight published factors, led by reputation (25%), specialty focus (25%), proximity (15%) and availability (10%). A practice with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only practices with a confirmed specialty and 3 or more reviews, or a claimed profile, are ranked.

Do ABA therapy providers outside Fontana count in this ranking?

Yes, if they are within 40 mi of the Fontana city center, our service radius for ABA therapy providers. Each listing shows where the practice is based and how far away it is. Proximity is 15% of the RP Score, so a nearby practice gets a small edge.

Can ABA therapy providers pay to rank higher on RankedPsychologists?

No. The RP Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured practices may appear above the list, labelled Sponsored and showing their honest rank.

How are aBA therapy providers in Fontana ranked?

Each practice gets an RP Score from 0 to 100 from 8 published factors, including its Google rating, how clearly it focuses on ABA therapy and how close it is. Sponsored placements are shown separately and never change rank. The score does not measure treatment outcomes.

Who provides ABA therapy?

ABA programs are designed and supervised by board certified behavior analysts (BCBA). Day-to-day sessions are often delivered by registered behavior technicians (RBT) working under that supervision. Many US health plans cover ABA for autism; the rules differ by state and plan, so ask the provider and your insurer.

Can I see an ABA therapy provider online?

Often, yes. Licensing generally follows where you are during the session, so the provider needs to be licensed or authorized there. In the US, psychologists in PSYPACT member states can offer telepsychology to clients in other member states; counselors and social workers have their own rules. In Canada, ask whether the provider is registered in your province.

What if I need help right now?

Do not wait for a consultation. Call or text 988 (US and Canada) if you are in crisis or thinking about suicide, at any time. In an emergency, call 911.

Update log for Fontana

  1. November 2026: RP Scores recalculated for 79 ABA therapy providers serving Fontana.
  2. November 2026: 1 duplicate listing merged.