Apollo.io
Large (~800)
Celonis
Large (~3,800)
Best For
Apollo.io
Best for: Product builders who want strong PMF and competitive comp at a sales-tech leader
Celonis
Best for: Enterprise software engineers and data scientists who want to work on process mining at scale with solid equity packages and a clear market leader position
Ratings
Apollo.ioCelonis
4.0
3.8
Overall
3.6
3.8
Work-Life Balance
4.0
3.9
Culture & Values
4.1
3.8
Comp & Benefits
3.6
3.6
Senior Mgmt
4.1
3.6
Career Opps
👍 77% Recommend
👤 81% CEO Approval (Matt Curl)
👍 76% Recommend
👤 80% CEO Approval (Bastian Nominacher)
Culture Values
Apollo.io only
⚙️ Engineering-Driven🌐 Remote-Friendly
Celonis only
💎 Strong Comp & Equity
Shared
🚀 Ship Fast & Iterate🎯 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
Celonis
- Strong learning and development opportunities with excellent internal mobility
- Great team culture with supportive colleagues and mentorship from leadership
- Below-market compensation compared to other tech companies of similar size
- Frequent organizational changes and restructuring with poor communication from leadership
Bottom Line
Apollo.io
Choose Apollo.io if you want best-in-class sales intelligence with competitive comp — but leadership can be hands-on.
Celonis
Process mining market leader with decent equity and a learning culture, but at 3,800+ people expect real corporate layers — best for those who want large-enterprise scale over startup agility.
Open Roles
Apollo.io — 45 jobs
💼 Sales / GTM
16
💻 Engineering
9
📣 Marketing
4
👤 HR / People
3
📋 Product
3
📊 Data
1
🎨 Design
1
💰 Finance
1
⚖️ Legal
1
🎧 Support
1
Celonis — 175 jobs
💻 Engineering
68
💼 Sales / GTM
39
📋 Product
5
📊 Data
3
🎧 Support
3
💰 Finance
2
🧠 ML / AI
2
📣 Marketing
1
⚙️ Operations
1
Summary
Apollo.io scores 4.0/5.0 on Glassdoor with a 3.6 work-life balance rating. Celonis scores 3.8/5.0 overall with a 3.8 WLB. That’s a 0.2-point gap on overall satisfaction.
Both companies share these culture values: Ship Fast & Iterate, Direct Product Impact, Learning & Growth. Apollo.io also emphasizes Engineering-Driven, Remote-Friendly. Celonis also emphasizes Strong Comp & Equity.
On the hiring front, Apollo.io has 45 open roles and Celonis has 175 open roles.