Apollo.io
Large (~800)
Helsing
Mid (~660)
Best For
Apollo.io
Best for: Product builders who want strong PMF and competitive comp at a sales-tech leader
Helsing
Best for: AI/ML engineers motivated by national security and defense who want to apply frontier AI to high-stakes real-world problems in a mission-driven team
Ratings
Apollo.ioHelsing
4.0
4.0
Overall
3.6
3.6
Work-Life Balance
4.0
4.1
Culture & Values
4.1
4.0
Comp & Benefits
3.6
3.8
Senior Mgmt
4.1
3.8
Career Opps
👍 77% Recommend
👤 81% CEO Approval (Matt Curl)
👍 80% Recommend
👤 84% CEO Approval (Gundbert Scherf)
Culture Values
Apollo.io only
🌐 Remote-Friendly
Helsing only
💎 Strong Comp & Equity
Shared
🚀 Ship Fast & Iterate⚙️ Engineering-Driven🎯 Direct Product Impact🌱 Learning & Growth
Pros & Cons
Apollo.io
- Strong product-market fit — best-in-class sales intelligence platform
- Competitive compensation with RSUs, performance bonuses, and paid health insurance
- Some reports of leadership involvement in granular decisions and frequent pivots
- Work-life balance challenges under high-growth pressure
Helsing
- Highest talent density of any tech company — world-class AI and engineering leadership
- Extremely important mission with rewarding impact and competitive salary
- Ridiculous expectations of work hours — high salaries do not mean constant overtime
- Some management not experienced enough to lead; lacking in performance feedback
Bottom Line
Apollo.io
Choose Apollo.io if you want best-in-class sales intelligence with competitive comp — but leadership can be hands-on.
Helsing
Strong engineering culture with a clear mission — but that mission (AI for defense) is not for everyone. Research the ethics carefully before applying; those aligned will find unusually meaningful work.
Open Roles
Apollo.io — 49 jobs
💼 Sales / GTM
19
💻 Engineering
11
📋 Product
4
👤 HR / People
2
📣 Marketing
2
📊 Data
1
🎨 Design
1
💰 Finance
1
⚖️ Legal
1
⚙️ Operations
1
🎧 Support
1
Helsing — 103 jobs
💻 Engineering
51
🧠 ML / AI
8
⚙️ Operations
4
📋 Product
4
💰 Finance
3
🎨 Design
2
📣 Marketing
2
👤 HR / People
1
💼 Sales / GTM
1
🎧 Support
1
Summary
Apollo.io scores 4.0/5.0 on Glassdoor with a 3.6 work-life balance rating. Helsing scores 4.0/5.0 overall with a 3.6 WLB. They’re tied on overall satisfaction.
Both companies share these culture values: Ship Fast & Iterate, Engineering-Driven, Direct Product Impact, Learning & Growth. Apollo.io also emphasizes Remote-Friendly. Helsing also emphasizes Strong Comp & Equity.
On the hiring front, Apollo.io has 49 open roles and Helsing has 103 open roles.