74/100RP Score
Ranked #1 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.4★ from 17 Google reviews.
Best ABA Therapy Providers in Fairfield, CA (2026)
32 ABA therapy providers ranked by RP ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Fairfield: ACES ABA - Autism Therapy Center, RP Score 74/100; 4.4★ from 17 Google reviews; open Saturdays until 5 PM.
- 8
Most-reviewed: Cortica Marin, 53 Google reviews at 4.6★, the most of 32 ranked; ranked #8.
Rankings can't be bought. Psychologists can't pay to change their rank or score. How we rank
32 Fairfield ABA therapy providers are ranked here by RP Score, from eight published factors. 14 open Saturdays, based on posted hours. The median Google rating is 4.3★ across 32 rated practices.
Top 10 ABA therapy providers in Fairfield 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.
| Rank | Business | RP Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | ACES ABA - Autism Therapy Center | 74 | 4.4★ (17) | Fairfield | Sat · Evenings | Overall |
| 2 | Behavior Matters California LLC | 67 | 3.7★ (6) | Vacaville, 7 mi away | — | — |
| 3 | ACES ABA - Autism Therapy Center | 66 | 3.9★ (19) | Concord, 19 mi away | Sat · Evenings | — |
| 4 | Kyo Autism Therapy | 63 | 4.3★ (10) | Concord, 19 mi away | Evenings | — |
| 5 | ACES ABA - Autism Therapy Center | 62 | 4.1★ (10) | Brentwood, 28 mi away | Sat · Evenings | — |
| 6 | Trumpet Behavioral Health, a division of BlueSprig | 61 | 5.0★ (5) | Brentwood, 29 mi away | Sat | — |
| 7 | Cortica Concord | 61 | 2.0★ (4) | Concord, 19 mi away | Evenings | — |
| 8 | Cortica Marin | 61 | 4.6★ (53) | San Rafael, 32 mi away | Evenings | Most reviews |
| 9 | Intercare Therapy | 60 | 5.0★ (5) | Elk Grove, 33 mi away | Sat · Evenings | — |
| 10 | PC4B KIDS | 60 | 5.0★ (3) | Berkeley, 30 mi away | Sat | — |
The 32 best ABA therapy providers in Fairfield, 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.
Scores below: based on 7 of 8 factors; recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Vacaville, 7 mi away
67/100RP ScoreRanked #2 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 3.7★ from 6 Google reviews.
Based in Concord, 19 mi away
66/100RP ScoreRanked #3 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 3.9★ from 19 Google reviews.
Based in Concord, 19 mi away
63/100RP ScoreRanked #4 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.3★ from 10 Google reviews.
Based in Brentwood, 28 mi away
62/100RP ScoreRanked #5 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.1★ from 10 Google reviews.
Based in Brentwood, 29 mi away
61/100RP ScoreRanked #6 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 5.0★ from 5 Google reviews.
Based in Concord, 19 mi away
61/100RP ScoreRanked #7 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 2.0★ from 4 Google reviews.
Based in San Rafael, 32 mi away
61/100RP ScoreRanked #8 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.6★ from 53 Google reviews.
Based in Elk Grove, 33 mi away
60/100RP ScoreRanked #9 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 5.0★ from 5 Google reviews.
#10 PC4B KIDS
Based in Berkeley, 30 mi away
60/100RP ScoreRanked #10 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 5.0★ from 3 Google reviews.
Based in Petaluma, 34 mi away
59/100RP ScoreRanked #11 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 5.0★ from 4 Google reviews.
Based in Lafayette, 25 mi away
59/100RP ScoreRanked #12 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 5.0★ from 3 Google reviews.
Based in Santa Rosa, 40 mi away
59/100RP ScoreRanked #13 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.8★ from 14 Google reviews.
Based in Dublin, 38 mi away
58/100RP ScoreRanked #14 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.0★ from 11 Google reviews.
Based in Emeryville, 31 mi away
57/100RP ScoreRanked #15 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 3.4★ from 7 Google reviews.
Based in Fairfield
56/100RP ScoreRanked #16 because of its Google rating and proximity: 4.2★ from 5 Google reviews, based in Fairfield.
#17 CARE Inc.
Based in Sacramento, 36 mi away
56/100RP ScoreRanked #17 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 5.0★ from 8 Google reviews.
Based in Petaluma, 34 mi away
56/100RP ScoreRanked #18 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.0★ from 3 Google reviews.
Based in Elk Grove, 37 mi away
56/100RP ScoreRanked #19 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 4.4★ from 8 Google reviews.
Based in Hayward, 40 mi away
54/100RP ScoreRanked #20 because of specialty focus and its Google rating: listed on Google as “Applied behavior analysis therapist”, 3.5★ from 4 Google reviews.
Based in Vacaville, 8 mi away
53/100RP ScoreRanked #21 because of its Google rating and specialty focus: 5.0★ from 4 Google reviews, listed on Google as “Mental health service”.
Based in Walnut Creek, 22 mi away
53/100RP ScoreRanked #22 because of its Google rating and specialty focus: 3.6★ from 23 Google reviews, listed on Google as “Mental health service”.
Based in Berkeley, 30 mi away
52/100RP ScoreRanked #23 because of its Google rating and specialty focus: 5.0★ from 53 Google reviews, listed on Google as “Counselor”.
Based in Lafayette, 25 mi away
51/100RP ScoreRanked #24 because of its Google rating and specialty focus: 4.4★ from 13 Google reviews, listed on Google as “Psychotherapist”.
Based in Napa, 15 mi away
51/100RP ScoreRanked #25 because of its Google rating and specialty focus: 3.6★ from 18 Google reviews, listed on Google as “Mental health clinic”.
All 32 ABA therapy providers
#1 to #25 are shown in full above. Here are #26 to #32, in RP Score order; each links to its profile.
| Rank | Business | RP Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Proficio Therapy Services, LLC | 48 | 5.0★ (11) | 26 mi |
| 27 | Center for Autism & Related Disorders | 47 | 2.0★ (4) | 28 mi |
| 28 | Center for Autism & Related Disorders | 46 | 3.4★ (5) | 32 mi |
| 29 | East Bay Child Development Center | 45 | 4.7★ (36) | 38 mi |
| 30 | Autism Spectrum Therapies AST | 44 | 3.7★ (3) | 38 mi |
| 31 | School of Imagination | 43 | 4.5★ (15) | 38 mi |
| 32 | Autism Learning Partners San Leandro | 41 | 2.3★ (3) | 38 mi |
Also serving Fairfield
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.
| Business | Google rating | Distance |
|---|---|---|
| AB Behavior & Consulting | In Fairfield | |
| Amaze Behavior Consultants | 14 mi | |
| Attune Behavior | 21 mi | |
| Autism Intervention Professionals | 5.0★ (1) | 38 mi |
| Autism Learning Partners Turlock | 26 mi | |
| Beyou Behavior Therapy SPC | 24 mi | |
| Center for Autism & Related Disorders | 5.0★ (1) | 7 mi |
| Center for Autism & Related Disorders | 26 mi | |
| Center for Social Dynamics | 5.0★ (1) | 16 mi |
| Developmental Rhythms | 5.0★ (1) | 34 mi |
| Elk Grove Behavior Center | 5.0★ (2) | 37 mi |
| Empower Minds ABA LLC | 23 mi | |
| FirstSteps For Kids | Bay Area | 24 mi | |
| Holistic ABA | 5.0★ (1) | 33 mi |
| Lighthouse ABA Services | 19 mi | |
| Mission Mandalay | 5.0★ (1) | 33 mi |
| Peak Potential ABA | 16 mi | |
| Proficio Therapy Services | 25 mi | |
| Steps Therapy Inc. | 3.0★ (2) | 39 mi |
| Therapy with Janelle | 22 mi |
How we ranked Fairfield ABA therapy providers
We scored 32 Fairfield 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.
| Factor | Weight | Computed from | In Fairfield data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Review volume | 5% | Number of Google reviews, compared with the most-reviewed practice on the list | Measured |
| Recency | 5% | Share of Google reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, and round-the-clock or same-day availability | Measured |
| Specialty focus | 25% | How clearly the practice does this specialty (its Google category and name) | Measured |
| Proximity | 15% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The practice has claimed its Ranked Psychologists profile (free or paid earn the same) | Measured |
| Partnered | 5% | The practice links to Ranked Psychologists from its own website with our badge, checked periodically | Measured |
How to choose an ABA therapy provider
- Check the license with the state or provincial board that issued it; most boards publish a free online lookup.
- Make sure ABA therapy is a regular part of their work, and ask what approach they use and why.
- Ask how many hours a week they recommend and how they set goals with the family.
- Ask how often a BCBA observes sessions and meets with parents.
- 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.
- Check practical fit: in-person or online sessions, evening times, and how soon they have an opening.
- 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 Fairfield: frequently asked questions
Who is the best ABA therapy provider in Fairfield?
By RP Score, the highest-ranked ABA therapy provider in Fairfield, CA is ACES ABA - Autism Therapy Center with an RP Score of 74/100. It has 4.4★ from 17 Google reviews. It is open Saturdays until 5 PM. Behavior Matters California LLC (#2) and ACES ABA - Autism Therapy Center (#3) follow. We ranked 32 ABA therapy providers on eight factors, last updated November 9, 2026.
How many ABA therapy providers are there in Fairfield?
RankedPsychologists ranks 32 ABA therapy providers serving Fairfield, CA. 2 of them are based in Fairfield; the rest serve it from nearby towns. 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 Fairfield work on weekends?
14 of 32 ranked ABA therapy providers post Saturday hours. The highest-ranked open Saturdays are ACES ABA - Autism Therapy Center (#1), ACES ABA - Autism Therapy Center (#3) and ACES ABA - Autism Therapy Center (#5). Posted hours are office hours; many practices also offer evening or online sessions by appointment.
What Google rating do Fairfield ABA therapy providers have?
The median Google rating among 32 rated ABA therapy providers in Fairfield is 4.3★, with a median of 8 reviews. Cortica Marin has the most, 53 reviews, and ranks #8. 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 Fairfield count in this ranking?
Yes, if they are within 40 mi of the Fairfield 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 Fairfield 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 Fairfield
- November 2026: RP Scores recalculated for 32 ABA therapy providers serving Fairfield.
More ABA therapy providers and Fairfield pages
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