2
Simon Khalaf
Executive Leadership
Marqeta
Financial Technology & Modern Card IssuingFounded 2010- HQ today: Oakland, California, USA
Reviewed by Swet Parvadiya
Company data updated: November 2026
Leadership History
Marqeta: CEO History
2 leaders · Full leadership timeline
Who is the CEO of Marqeta?
Simon Khalaf is the CEO of Marqeta.
- Current CEO
- Simon Khalaf
- Leaders documented
- 2
- Founded
- 2010
| Name | Role | From | To | Years in role |
|---|---|---|---|---|
| Simon Khalaf | Executive Leadership | — | Present | — |
| Mike Milotich | Finance & Strategy | — | Present | — |
Company Overview
In 2010, entrepreneur Jason Gardner founded Marqeta in Oakland with a vision to modernize card issuing. Inspired by how difficult it was for businesses to configure prepaid loyalty cards, Gardner realized that the entire global card issuing infrastructure was built on antiquated 1970s mainframes that were incapable of dynamic internet-age transactions.
Marqeta operates a transaction-volume and platform usage business model. When a consumer or corporate user swipes or taps a Marqeta-powered payment card, Marqeta earns a percentage share of the interchange fee paid by the merchant's acquiring bank to the card network (Visa or Mastercard). Marqeta shares a portion of this interchange with its corporate enterprise clients while retaining net interchange revenue. In addition, Marqeta charges platform fees for card manufacturing and personalization, account tokenization (Apple Pay, Google Pay), fraud prevention algorithms, and developer API calls, achieving scalable software-like economics as customer payment volume expands.
1
Mike Milotich
Finance & Strategy
Challenges & Strategic Context
Marqeta has historically experienced high customer concentration risk, with Block (Cash App) accounting for roughly half of its total processing volume and revenue. Negotiating contract renewals with Block and expanding gross margins amidst card network interchange adjustments represents an ongoing strategic focus. In addition, competition from legacy card processors (Fiserv, FIS) modernizing their APIs and newer fintech issuing platforms (Adyen, Stripe Issuing) creates continuous pricing pressure.
Marqeta CEO and Leadership FAQ
Who is the CEO of Marqeta?
Simon Khalaf serves as the Chief Executive Officer of Marqeta.
Who are the other key executives at Marqeta?
The senior executive team includes leaders across technology, finance, product engineering, legal compliance, and commercial sales.
What is Marqeta's corporate governance philosophy?
Marqeta adheres to high standards of corporate transparency, data privacy, stakeholder alignment, and long-term value creation.
Where are Marqeta's executive headquarters located?
Marqeta maintains its principal executive offices in Oakland, United States.
How does leadership prioritize capital allocation?
Management prioritizes high-ROI software research, infrastructure stability, disciplined hiring, and strategic market expansion.
How is the Board of Directors composed?
The Board includes independent directors with substantial executive experience across global technology, enterprise finance, and corporate law.
Related Leadership Timelines
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