Company Details
Technology Stack
Professional Summary
Jeff Han is Co-Founder/CTO at Open. Open operates in the information technology & services industry and has 24 employees. Based in Palo Alto, California, United States. Classified as a c-suite-level CTO leader. Their organization's technology stack includes Cloudflare DNS, Gmail, Google Apps, Amazon AWS, Mobile Friendly, and 5 other technologies.
Industry & Role Insights
- • CTO Rank tracks 138,833 CTO leaders with verified contact information.
- • There are 166,587 tech leaders in the information technology & services industry in our database.
- • We have verified contacts for 4 tech leaders at Open.
- • 48,652 tech leaders in California are available in our database.
Position in the CTO Rank Database
- • Jeff Han is 1 of 140,489 leaders with the CTO role tracked in the CTO Rank database.
- • 62,499 hold the CTO role at information technology & services companies (out of 167,492 total information technology & services leaders in our database).
- • 9,924 hold the CTO role in California.
- • 1,117 hold the CTO role at companies with 24 employees.
- • Typical CTO compensation in California: $250,000 – $650,000 (median $420,000). Composite from levels.fyi, Glassdoor, and Payscale data; adjusted for state cost of labor.
Data compiled from LinkedIn public profiles, company filings, and verified public technology signals. Methodology & sources · Updated May 2026.
Frequently Asked Questions
How do I contact Jeff Han?
Jeff Han has a verified email address on file on CTO Rank. They work at Open. Pro members can access direct email addresses, LinkedIn profiles, and phone numbers.
What company does Jeff Han work for?
Jeff Han is Co-Founder/CTO at Open, a company in the information technology & services industry with 24 employees. The company is headquartered in Los Angeles, California, United States.
What is Jeff Han's role in technology leadership?
Jeff Han is classified as a CTO leader at the c-suite level.
What technologies does Jeff Han's organization use?
Jeff Han's organization uses a technology stack that includes Cloudflare DNS, Gmail, Google Apps, Amazon AWS, Mobile Friendly, Google Font API. This information is useful for sales teams, recruiters, and technology vendors.
Is Jeff Han open to recruiting or new opportunities?
CTO Rank does not track open-to-work status. The best approach is to reach out directly to Jeff Han using the verified contact information available to Pro members. When recruiting a Co-Founder/CTO, personalizing your outreach with specifics about the role and tech stack typically yields the best response rate.
Can I pitch or sell to Jeff Han at Open?
Jeff Han is Co-Founder/CTO at Open. CTOs like Jeff Han typically evaluate vendors in Cloudflare DNS, Gmail, Google Apps, and related categories. Use CTO Rank Pro to get verified email and approach directly.
How accurate is Jeff Han's profile data?
CTO Rank verifies and refreshes profile data weekly. Jeff Han's profile includes verified contact details, company information, and technology stack data sourced from multiple public and proprietary sources.
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