Mercor
Small (~200)
Vanta
Large (~1,400)
Best For
Mercor
Best for: Engineers who want to build AI hiring infrastructure at a $10B rocketship with extreme ownership and MIT-founder energy
Vanta
Best for: Engineers and salespeople who want top-of-market comp at the category leader in security compliance and can handle a meeting-heavy, high-intensity pace
Ratings
MercorVanta
3.9
3.8
Overall
3.9
3.3
Work-Life Balance
3.6
3.9
Culture & Values
4.0
3.8
Comp & Benefits
3.5
3.6
Senior Mgmt
3.7
3.6
Career Opps
👍 74% Recommend
👤 82% CEO Approval (Brendan Foody)
👍 76% Recommend
👤 80% CEO Approval (Christina Cacioppo)
Culture Values
Mercor only
⚙️ Engineering-Driven🤝 Flat Hierarchy
Vanta only
🎯 Direct Product Impact
Shared
🚀 Ship Fast & Iterate💎 Strong Comp & Equity
Pros & Cons
Mercor
- Massive impact at an AI company growing at breakneck speed
- Top-tier compensation with strong equity at $10B valuation
- Intense 9/9/6 work schedule — long hours are the norm
- Work-life balance is a real sacrifice at this stage
Vanta
- Strong compensation rated 4.3/5 — best category score
- Market-defining product in security compliance automation
- Brutal meeting culture pushing work into nights and weekends
- Virtually no AEs hit quota — targets unrealistically high
Bottom Line
Mercor
Choose Mercor if you want outsized impact on AI-era hiring at a tiny, fast-moving team — but the 9/9/6 schedule is real, and work-life balance is genuinely sacrificed for speed.
Vanta
Pays extremely well and owns its market niche, but the meeting-heavy culture and low WLB score (3.3/5) signal this is not for anyone seeking balance.
Open Roles
Mercor — 49 jobs
💻 Engineering
20
🧠 ML / AI
6
💼 Sales / GTM
5
👤 HR / People
3
📊 Data
2
📣 Marketing
2
📋 Product
2
🎨 Design
1
⚙️ Operations
1
Vanta — 166 jobs
💼 Sales / GTM
78
💻 Engineering
50
📋 Product
8
🎨 Design
6
📣 Marketing
6
📊 Data
2
⚙️ Operations
2
💰 Finance
1
⚖️ Legal
1
Summary
Mercor scores 3.9/5.0 on Glassdoor with a 3.9 work-life balance rating. Vanta scores 3.8/5.0 overall with a 3.3 WLB. That’s a 0.1-point gap on overall satisfaction.
Both companies share these culture values: Ship Fast & Iterate, Strong Comp & Equity. Mercor also emphasizes Engineering-Driven, Flat Hierarchy. Vanta also emphasizes Direct Product Impact.
On the hiring front, Mercor has 49 open roles and Vanta has 166 open roles.