Lambda, a provider of AI cloud infrastructure, has appointed Heather Planishek as its new Chief Financial Officer. Planishek, who recently served as Chief Operating and Financial Officer at Tines and previously as Chief Accounting Officer at Palantir Technologies, will lead the company's global finance organization. Her appointment strengthens the executive team as Lambda scales its operations to meet growing demand from hyperscalers, enterprises, and AI research labs building advanced superintelligence.
Lambda appoints Heather Planishek as its new Chief Financial Officer.
Planishek was most recently COO/CFO at Tines and previously Chief Accounting Officer at Palantir.
She joined Lambda's Board of Directors in July 2025 and will now step down from that role.
Her background includes scaling high-growth tech companies and guiding them through public markets.
She will oversee Lambda's financial strategy, planning, accounting, treasury, and investor relations.
The appointment supports Lambda's expansion as it deploys AI infrastructure for leading AI labs and hyperscalers.
Planishek's appointment brings significant financial and operational expertise to Lambda's leadership team during a period of rapid expansion. Her experience at Palantir, where she helped guide the company through growth and its transition to public markets, and her recent role at Tines, provide a strong foundation for managing Lambda's scale. Her initial involvement as a board member since July provides continuity and deep familiarity with the company's strategic direction.
“It’s awesome to have Heather join as our CFO,” said Stephen Balaban, co-founder and CEO of Lambda. “I’ve gotten to know her through our work together on the board, and it’s great to have her take on an executive leadership role at Lambda.”
In her new role, Planishek will be responsible for Lambda's comprehensive financial functions, including strategy, planning, accounting, treasury, investor relations, and business systems. Her leadership is expected to fortify the company's financial and operational foundations as it continues to serve a diverse customer base that spans frontier AI research labs, major hyperscalers, and tens of thousands of individual AI developers and enterprises.
“Lambda sits at the center of one of the most important shifts in technology, with infrastructure that I believe is rapidly becoming essential for AI at scale,” said Planishek. “I’m excited to join the leadership team and help strengthen the financial and operational foundation that will support Lambda’s continued growth and long-term market leadership.”
The move signals Lambda's focus on building a robust corporate infrastructure to support its ambitious growth trajectory in the competitive AI cloud and supercomputing sector. By bringing on a CFO with a proven track record in scaling enterprise technology companies and navigating complex financial landscapes, Lambda aims to solidify its position as a critical infrastructure provider in the era of large-scale AI training and superintelligence development.
The appointment of Heather Planishek as CFO underscores Lambda's transition from a technical innovator to a scaled enterprise, preparing its financial and operational framework to support sustained growth and market leadership in the high-stakes AI infrastructure landscape.
About Lambda
Lambda, The Superintelligence Cloud, is a leader in AI cloud infrastructure serving tens of thousands of customers.
Founded in 2012 by machine learning engineers who published at NeurIPS and ICCV, Lambda builds supercomputers for AI training and inference.
Our customers range from AI researchers to enterprises and hyperscalers.
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