Best AI ATS for Startups: 2026 Comparison Guide
An honest comparison of the top applicant tracking systems — pricing, AI capabilities, and which one fits your team size. Updated March 2026.
| Feature | Curriculo ATS | Greenhouse | Lever | Workable | Ashby |
|---|---|---|---|---|---|
| Best For | Startups (5–200) | Enterprise (200–5K+) | Mid-market (100–500+) | SMB-Mid (10–1K) | Startups (20–500) |
| Starting Price | Free | ~$15K+/yr | ~$3,500+/yr | $149/mo | ~$300/mo |
| Free Plan | ✓ Yes (1 job) | ✗ No | ✗ No | ✗ No (15-day trial) | ✗ No |
| Per-Seat Fees | ✗ No — flat $50/mo | ✓ Yes | ✓ Yes | ✓ Yes (higher tiers) | ✓ Yes |
| AI Screening | Signal-based scoring | Keyword matching | Basic AI matching | AI sourcing | Basic screening |
| Impact Scoring | ✓ Built-in (0–100) | ✗ No | ✗ No | ✗ No | ✗ No |
| Candidate Network | ✓ 10,000+ | ✗ No | ✗ No | 200M+ (external) | ✗ No |
| CRM Features | Basic pipeline | Basic | Full CRM + nurture | Basic | Basic |
| Integrations | Google, Slack, API | 400+ | 200+ | 70+ | 50+ |
| Setup Time | 15 minutes | 2–4 weeks | 1–2 weeks | 1–3 days | 1–2 days |
| Analytics | Built-in dashboard | Advanced | Advanced | Advanced | Best-in-class |
| DEI Tools | Signal reduces bias | Advanced | Advanced | Basic | Basic |
Individual Platform Profiles
Curriculo ATS
AI-native ATS with signal-based scoring that evaluates candidates on measurable impact. The only ATS with a built-in candidate network of 10,000+ pre-structured resumes.
Best for: Startups 5–200 employees
Standout: Impact scoring (0–100)
Greenhouse
Enterprise-grade structured hiring platform with 400+ integrations. The industry standard for large organizations that need complex workflows and compliance reporting.
Best for: Companies 200+ employees
Standout: 400+ integrations
Lever
Combined CRM + ATS with nurture campaigns and advanced DEI dashboards. A strong mid-market choice for teams that prioritize candidate relationship management.
Best for: Mid-market 100–500+ employees
Standout: Full CRM + nurture
Workable
All-in-one recruiting platform with access to 200M+ candidate profiles for AI-powered sourcing. Designed for SMBs that want hiring, sourcing, and HR in one tool.
Best for: SMB 10–1,000 employees
Standout: 200M+ candidate database
Ashby
Analytics-first ATS with a modern UI built for data-driven recruiting teams. Best-in-class reporting and a clean interface that growing startups love.
Best for: Data-driven startups 20–500
Standout: Best-in-class analytics
How to Choose the Right ATS for Your Startup
Team Size & Hiring Volume
Under 50 employees? CurriculoATS or Ashby. Over 200? Greenhouse or Lever. The right ATS scales with your team — don't overpay for features you won't use for years.
Budget
$0? Only Curriculo ATS has a real free plan. Under $100/mo? CurriculoATS Pro. $300+/mo? Consider Ashby or Workable. $15K+/yr? Greenhouse or Lever become options.
AI Priority
Want signal-based scoring? CurriculoATS. Want AI sourcing from 200M profiles? Workable. Want structured hiring workflows? Greenhouse. Want analytics-driven decisions? Ashby.
Must-Have Feature
CRM + nurture? Lever. Analytics? Ashby. Candidate network? CurriculoATS. Integrations? Greenhouse. AI sourcing database? Workable.
Which ATS is best for a startup under 20 employees?
CurriculoATS. It's free for up to 1 active job, requires no implementation, and is built specifically for small teams without dedicated HR.
Which ATS has the best AI screening?
Curriculo ATS uses signal-based scoring that evaluates measurable impact. Workable has strong AI sourcing. Greenhouse and Lever rely primarily on keyword matching.
Can I migrate between these platforms?
Yes. Most ATS platforms support data export. Curriculo ATS offers migration support for candidate records, job postings, and pipeline stages.
Which ATS is cheapest?
Curriculo ATS (free to $50/mo). Then Workable ($149/mo), Ashby (~$300/mo), Lever (~$3,500/yr), Greenhouse ($15K+/yr).
Do any of these have a free plan?
Only Curriculo ATS offers a permanent free plan (1 active job, AI screening included). Workable offers a 15-day trial.
Which ATS is best for diversity hiring?
Lever has the most advanced DEI dashboards. CurriculoATS reduces bias through signal-based scoring (evaluating outcomes, not demographics).