Who are Lambda's decision-makers?
Lambda's May 2026 leadership overhaul was one of the most significant in the company's 14-year history. Co-founder Stephen Balaban stepped back from the CEO seat — which he had held since founding in 2012 — to focus on technology strategy as CTO, making room for Michel Combes to drive the company toward a public listing and gigawatt-scale infrastructure deployment. Combes brings serial public-company CEO experience across Sprint, Alcatel-Lucent, and SoftBank International. The simultaneous appointment of Chairman John Donovan, CFO Charles Fisher, CLO David Connolly, and Vice Chairman Jerry Hunter signals a deliberate transition from founder-led startup to institutionally governed public-company candidate.
- CEO
- Michel Combes (appointed May 2026)
- CTO
- Stephen Balaban (co-founder, 2012–present)
- CPO
- Michael Balaban (co-founder, 2012–present)
- Founded
- 2012
- Employees
- ~750
- HQ
- San Jose, California
- Michel CombesChief Executive OfficerMay 2026–presentFormer CEO of SoftBank International, Sprint, and Alcatel-Lucent; also Chairman/CEO of Brightspeed. Brings two decades of capital-intensive infrastructure operating experience; hired to lead Lambda's gigawatt-scale expansion and IPO.
- Stephen BalabanCo-Founder & Chief Technology Officer2012–presentMachine learning researcher who co-founded Lambda in 2012; published at NeurIPS and SPIE; served as CEO from founding through April 2026 before transitioning to lead technology and product vision as CTO.
- Michael BalabanCo-Founder & Chief Product Officer2012–presentTwin brother of Stephen; scaled Lambda's product and operations from early GPU workstations to hyperscale clusters; now leads product strategy connecting infrastructure to developers.
- John DonovanChairman of the Board2026–presentFormer CEO of AT&T Communications and CTO of AT&T; brings deep expertise in large-scale network and infrastructure deployments critical to Lambda's gigawatt buildout.
- Jerry HunterVice Chairman of Compute Delivery2026–presentFormer COO of Snap and early AWS infrastructure leader; brings hyperscale data center operations experience directly relevant to Lambda's compute delivery function.
- Charles FisherChief Financial Officer2026–presentFormer CFO of Turo and senior finance executive at Charter Communications; leads Lambda's financial operations ahead of the planned IPO.
- David ConnollyChief Legal Officer2026–presentFormer General Counsel at Altice; oversees Lambda's legal and compliance functions as it scales to gigawatt-class infrastructure and public-company readiness.
Who leads Lambda?
Lambda was co-founded in 2012 by twin brothers Stephen and Michael Balaban, who built the company from a facial-recognition API into a multi-billion-dollar AI infrastructure platform over 14 years. Stephen, a machine learning researcher who published at NeurIPS and SPIE, led as CEO until May 2026. Michael scaled product and operations — from early sub-$20K GPU workstations to hyperscale 1-Click Clusters supporting 2,000+ GPUs. Both remain in the executive team: Stephen as CTO shaping Lambda's technology direction, Michael as CPO leading the developer-facing product roadmap.
The May 2026 restructuring brought in Michel Combes, whose resume spans three public-company CEO stints: Alcatel-Lucent (where he led a major turnaround and merger with Nokia), Sprint, and SoftBank International. He is concurrently Chairman and CEO of Brightspeed. The board added John Donovan — former CEO of AT&T Communications and former AT&T CTO — as Chairman, and Jerry Hunter (former COO of Snap and early AWS infrastructure leader) as Vice Chairman of Compute Delivery. CFO Charles Fisher (ex-Turo, Charter Communications) and CLO David Connolly (ex-Altice) round out the new C-suite, with each hire calibrated to the specific challenges of a pre-IPO infrastructure company at Lambda's scale.
Who actually makes buying decisions at Lambda?
At Lambda's current stage (~750 employees, pre-IPO), buying decisions are more centralized than at a mature enterprise. For software and SaaS tools — engineering platforms, observability, developer tooling — the technology leadership team led by CTO Stephen Balaban and Vice Chairman of Compute Delivery Jerry Hunter holds primary influence. Hunter's background at AWS makes him particularly attuned to infrastructure vendor evaluation and familiar with enterprise procurement standards.
For financial and legal vendor relationships — audit, legal counsel, D&O insurance, investor relations, FP&A tooling — CFO Charles Fisher and CLO David Connolly are the primary decision-makers. Both are newly appointed in 2026 and actively building out their vendor ecosystems. For large strategic partnerships — GPU supply agreements, data center colocation, power and cooling infrastructure — the CEO, Chairman, and board are directly involved, as evidenced by the Microsoft and NVIDIA deals negotiated at the co-founder/CEO level. These strategic partnerships are announced by the executive team and structured at the board level.
How is Lambda organized as it scales?
Lambda's organizational structure is evolving from the flat, founder-led model appropriate for a 60-person startup toward the functional hierarchy required for a ~750-person, IPO-bound company. The May 2026 restructuring effectively created a three-layer leadership: a board with Donovan as Chairman providing governance and public-company readiness oversight; a C-suite with Combes driving strategy and external relationships (investors, customers, banks); and the founding team in technical and product execution roles where domain expertise is deepest.
The company has historically prized a 'do-ocracy' and low-ego engineering culture — values baked into its published principles. That culture is likely to face some friction as formal reporting lines, budget approval processes, security audits, and compliance requirements increase ahead of the IPO. The hiring of a dedicated CFO and CLO (both new as of early 2026) signals that Lambda is building the financial controls, entity structure, and legal infrastructure required for public-company status — typically an 18-to-24-month process that the current timeline compresses to under 12 months.
As of June 2026.Sources:Lambda: Leadership team announcementDCD: Lambda hires Michel Combes as CEOYahoo Finance: Lambda leadership announcement
Lambda — frequently asked questions
