# The Top 10 Administrative Recruiting Agencies in Ontario, CA

Discover the top 10 administrative recruiting agencies in Ontario, CA, ranked by verified Google reviews. Find the best administrative recruiters for your hiring needs.

## Market snapshot

- **Notable employers:** Ontario International Airport, Kaiser Permanente Ontario Medical Center, Amazon ONT6 Fulfillment Center, UPS Supply Chain Solutions, City of Ontario
- **Common job titles:** Administrative Assistant, Executive Assistant, Office Manager, Receptionist, Data Entry Clerk

## Introduction

Positioned as a strategic hub in the Inland Empire, the city's thriving logistics, manufacturing and distribution sectors create sustained demand for skilled administrative professionals who can manage complex operations and support growing businesses. Healthcare facilities, government offices and professional services firms throughout the region rely heavily on qualified administrative talent to maintain efficient daily operations and customer service excellence. The competitive nature of Ontario's job market means that companies seeking top administrative candidates benefit significantly from partnering with specialized recruiting agencies that understand local industry needs and maintain deep talent networks. Selecting the right recruiting partner can dramatically reduce time-to-hire while ensuring access to pre-vetted candidates who match specific organizational requirements.

## Top 10 agencies

| # | Agency | Rating (reviews) |
| --- | --- | --- |
| 1 | [Great Hire Staffing](https://recruiterrank.co/profile/great-hire-staffing) | 4.9 (654) |
| 2 | [Partners Personnel](https://recruiterrank.co/profile/partners-personnel) | 4.9 (63,545) |
| 3 | [Adept HR](https://recruiterrank.co/profile/adept-hr) | 4.7 (174) |
| 4 | [Top Tier HR](https://recruiterrank.co/profile/top-tier-hr) | 4.6 (33) |
| 5 | [CloudPersonnel](https://recruiterrank.co/profile/cloudpersonnel) | 4.6 (263) |
| 6 | [Ultimate Staffing](https://recruiterrank.co/profile/ultimate-staffing) | 4.6 (4,161) |
| 7 | [Care Staffing Professionals](https://recruiterrank.co/profile/care-staffing-professionals) | 4.6 (12) |
| 8 | [A Train Staffing](https://recruiterrank.co/profile/a-train-staffing) | 4.5 (240) |
| 9 | [SkyStaff LLC](https://recruiterrank.co/profile/skystaff-llc-1) | 4.4 (38) |
| 10 | [Leading Staffing Solutions](https://recruiterrank.co/profile/leading-staffing-solutions) | 4.4 (4) |

## How These Rankings Work

Scores come from **Google Reviews** via the Google Places API — never from paid placements, and never set by the agencies themselves. We apply a **Bayesian adjusted average** to prevent small-sample distortion (a 2-review 5.0-star agency shouldn't outrank a 200-review 4.8-star one):

```
adjusted_score = (v / (v + m)) * R + (m / (v + m)) * C
```

- `v` — total reviews across all offices
- `m` — prior weight (**20**)
- `R` — the agency's weighted average score
- `C` — the platform-wide mean

So with a global mean of 4.2: an agency with **5 reviews at 5.0** scores 4.36, while one with **200 reviews at 4.8** scores 4.75. The second outranks the first because the score is backed by more evidence.

Multi-office agencies get a single weighted score across locations. Every listing is human-reviewed before publication. Scores refresh hourly. [Read the full methodology →](https://recruiterrank.co/methodology)

## Conclusion

Each agency profile includes comprehensive details about services offered, client reviews and direct contact information to help you make an informed decision for your administrative hiring needs. These rankings reflect verified Google reviews and are updated regularly to ensure accuracy and relevance. We encourage you to review multiple agencies to find the recruiting partner that best aligns with your company's culture and staffing requirements.

## Explore

- [Administrative recruiters](https://recruiterrank.co/industry/administrative)
- [Recruiters in Ontario, CA](https://recruiterrank.co/city/ontario-ca)
- [All guides](https://recruiterrank.co/guide)
- [Our methodology](https://recruiterrank.co/methodology)