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HOME/PEOPLE/AARON KATZ
// PERSON

Aaron Katz

ROLE CEOMENTIONS 16LAST SEEN AUGUST 31, 2026
// BIO

Aaron Katz is the co-founder and CEO of ClickHouse, Inc., a real-time analytics database company. He previously served as Chief Revenue Officer at Elastic, where he helped lead the open-source company from approximately $15 million to over $500 million in revenue through its IPO, and spent twelve years in senior sales leadership roles at Salesforce. He is best known for commercializing the ClickHouse open-source project, originally developed internally at Yandex, into an independent company serving enterprise customers including Microsoft, Walmart, and Lyft.

Discussed in
// RECENT MENTIONS
// SIGNALS
16 SIGNALS
01
mention·20VC·AUGUST 31, 2026

“Especially given your time with Elastic.”

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02
mention·20VC·AUGUST 31, 2026

“We haven't seen revenue growth like this in our lifetime.”

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03
mention·20VC·AUGUST 31, 2026

“If you ask Anthropic how they chose to use ClickHouse, they'll tell you they asked Claude. What technology should we use for this specific observability use case? And Claude suggested ClickHouse.”

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04
mention·20VC·AUGUST 31, 2026

“Our Anthropic spend is up 100 times from what it was at the beginning of the year.”

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05
mention·20VC·AUGUST 31, 2026

“I just thought it was going to be a lot easier to follow the Datadog playbook than the Snowflake playbook.”

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06
mention·20VC·AUGUST 31, 2026

“If you look at Harvey, for example, I know they're, I think, leading the category in terms of specialization.”

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07
m_and_a·20VC·AUGUST 31, 2026

“Our most recent one earlier this year was Langfuse out of Berlin, which is three incredible founders entering agent observability.”

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08
mention·20VC·AUGUST 31, 2026

“We both know Lin at Fireworks... yeah, we're 30%, 35%. We hope to be more over time.”

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09
mention·20VC·AUGUST 31, 2026

“He was such an incredible marketer that he created this perception in the industry that some of the largest companies in the world could adopt this technology.”

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10
mention·20VC·AUGUST 31, 2026

“I typically tell him whether or not he's buying or selling.”

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11
mention·20VC·AUGUST 31, 2026

“Mike was an operator, worked at Cisco for a long time, ran CorpDev. I think he did over 100 acquisitions.”

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12
mention·20VC·AUGUST 31, 2026

“I'm like, it feels like you guys are ready to go public. And he said, I kind of basically run a public company.”

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13
funding·20VC·AUGUST 31, 2026

“We did a financing earlier this year and then we extended it and brought in some strategic investors like yourself and David Sachs and Michael Dell and JP Morgan.”

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14
mention·20VC·AUGUST 31, 2026

“Microsoft's one of our power users. We power the largest analytical workloads at Microsoft.”

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15
mention·20VC·AUGUST 31, 2026

“I flew to China to launch a partnership with Alibaba.”

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16
mention·20VC·JULY 16, 2026

“I like the post this morning from Aaron Katz at ClickHouse, who said that their AI spend is up 60x since February.”

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AI-extracted from podcast / newsletter / paper summaries. May contain errors.

Aaron Katz · CEO — 16 mentions on Teahose