Greenhouse vs Bullhorn: Which ATS Suits Your Team?
Greenhouse is typically run by tech companies and scale-ups. Bullhorn is typically run by staffing and recruiting agencies. Neither is the better product in the abstract — an applicant tracking system is chosen far more by company shape than by feature count, and the sections below set out which shape each one assumes. The Cognitive publishes this comparison; we integrate with applicant tracking systems rather than replacing them.
Greenhouse vs Bullhorn at a glance
| Greenhouse | Bullhorn | |
|---|---|---|
| Typically run by | tech companies and scale-ups | staffing and recruiting agencies |
| Built around | Greenhouse is built around structured hiring: scorecards, interview kits, and stage-by-stage plans are first-class objects. | Bullhorn is the dominant ATS/CRM in staffing and recruiting agencies, where speed-to-submit wins placements. |
| Where screening sits | Most Greenhouse teams trigger AI interviews from the Application Review or Assessment stage, replacing the manual screen block that stalls pipelines. | Agencies usually trigger AI interviews on shortlist entry, so every submittal to a client is already interviewed and scored. |
What Greenhouse is built around
Greenhouse is built around structured hiring: scorecards, interview kits, and stage-by-stage plans are first-class objects. The Cognitive slots into that philosophy naturally - its evidence-scored AI interviews fill Greenhouse scorecards with quote-backed ratings instead of empty forms waiting on busy interviewers.
What Bullhorn is built around
Bullhorn is the dominant ATS/CRM in staffing and recruiting agencies, where speed-to-submit wins placements. The Cognitive gives Bullhorn agencies a screening layer clients can see: submittals arrive with recordings and quote-backed scorecards attached as proof of vetting.
Candidate sourcing with Greenhouse or Bullhorn
| Greenhouse / Bullhorn (ATS) | Recruiting CRM | Candidate sourcing | |
|---|---|---|---|
| Direction of travel | Inbound — people who applied | Inbound and outbound, held warm between roles | Outbound — people who have not applied |
| Trigger | An application against an open requisition | A role you know is coming | A written brief for a role you are filling now |
| What it holds | Applicants, stages, requisitions, offers | Talent pools, past applicants, passive prospects | Search results and revealed contact details, until you keep them |
| Where it stops | It does not find anyone or judge anyone | It does not find anyone new | It says nothing about ability — a sourced candidate is unassessed |
| Owned by | tech companies and scale-ups on Greenhouse; staffing and recruiting agencies on Bullhorn | Either an ATS with CRM built in, or a separate product | Sourcing software, or a recruiter's own hours |
Candidate sourcing is the outbound half of recruitment: searching for people who have not applied, checking they fit the role, revealing contact details and opening the first conversation. It is a different job from applicant tracking, which is inbound by definition — an ATS receives and organises the people who came to you. Neither Greenhouse nor Bullhorn sources candidates, and neither claims to; both assume something upstream fills the pipeline they then track.
In most teams that upstream something is a recruiter with browser tabs open: a boolean string on a professional network, a job-board search, a spreadsheet of names. It works, and it costs the hours it costs — the search is never recorded, the rationale for each name lives in the recruiter's head, and the sourced candidate arrives in Greenhouse or Bullhorn as a manual add with no history behind it.
Dedicated candidate sourcing software replaces that with a written brief. On The Cognitive the brief is plain English rather than boolean syntax, it runs across ~900M profiles with contacts enriched from 30+ sources, and every candidate comes back with a "Why them?" rationale you can check against the brief. Search results cost 1 credit per candidate returned, an email reveal 5 credits and a phone number 10, charged only on a successful reveal. Candidates you keep push into whichever of the two systems you run, which stays the record.
Greenhouse teams source against a job post that already exists, so the search brief is derived from the job description rather than written from scratch. Sourced candidates enter Greenhouse at the top of the same pipeline as inbound applicants, which keeps one funnel report instead of two and lets the structured-hiring scorecard cover outbound candidates on the same terms.
Agency sourcing is a speed-to-submit problem: the first credible submittal usually takes the placement, and the candidate is rarely someone who applied. Bullhorn agencies use outbound search to fill a new req the day it lands, and the market intelligence that comes back from a search — supply, seniority spread and location for that role — is often what the client is really buying in the intake call.
Choosing between them
- Greenhouse suits tech companies and scale-ups — pick it if that describes your team.
- Bullhorn suits staffing and recruiting agencies — pick it if that describes yours instead.
- Migration cost usually outweighs feature differences. If you already run one of these and it is not actively failing, the switch rarely pays for itself.
- Ask both vendors the same question: what happens at the screening stage? Neither system evaluates candidates for you, and that gap is what most teams end up buying a second tool for.
What neither ATS does
Both Greenhouse and Bullhorn are systems of record. They store candidates, move them through stages and report on the pipeline. Neither finds candidates who have not applied, and neither tells you which applicants are worth interviewing.
The Cognitive fills those two gaps and works inside either system rather than replacing it: candidate sourcing across ~900M profiles with contacts enriched from 30+ sources, then a live two-way AI video interview returning a scorecard where each rating ties to a quote and a timestamp. Results sync back into whichever of the two you choose.
Frequently Asked Questions
What is the difference between Greenhouse and Bullhorn?
Greenhouse is typically run by tech companies and scale-ups; Bullhorn by staffing and recruiting agencies.
Which is better, Greenhouse or Bullhorn?
Neither is better in the abstract. Greenhouse assumes tech companies and scale-ups; Bullhorn assumes staffing and recruiting agencies. Company shape decides it far more than feature count does.
Do Greenhouse and Bullhorn screen candidates?
No. Both are systems of record that store and move candidates. Neither evaluates them, which is why screening is usually handled manually or by a separate tool that writes results back.
Do Greenhouse or Bullhorn source candidates?
No. Both are applicant tracking systems, which by definition hold people who have already applied. Sourcing — finding candidates who have not applied, verifying fit and revealing contact details — is a separate job, done either by a recruiter searching by hand or by candidate sourcing software that pushes the results into the ATS.
Which is better for recruiting metrics, Greenhouse or Bullhorn?
Both report time to fill, stage conversion and source of hire from the applications they hold, so the difference is presentation rather than substance. The metric neither can produce on its own is quality of hire, because that needs evidence about how candidates performed at the screening stage — and screening is the stage no applicant tracking system runs.
Other comparisons
The Cognitive + Greenhouse · The Cognitive + Bullhorn · Greenhouse vs Lever · Greenhouse vs Ashby · List of applicant tracking systems · Recruiting CRM systems · AI Recruiter · Pricing