# Andrew Bialecki, CEO > Andrew Bialecki, CEO. 1 investment on record. The rounds they were named in and the filings that name them, each with its source. Source: https://millionrounds.com/person/andrew-bialecki (Millionrounds; every figure on the page links to its filing or article) Boston, US · Angel # Andrew Bialecki CEO Latest rounds - **Postscript** Round · $4.5M Dec 2019 Backs *Advertising & Adtech* Profile summary - **Rounds named:** 1 last Dec 2019 - **Filings:** 1 with regulators - **Podcasts:** 6 +1 mentions What this record rests on - ✓ **Named in rounds** 1 round name them - ✓ **On filings** 1 filing with a regulator - **Linked to a firm** No firm on record - **Claimed** Not claimed yet Titles come from filings their firm signed. [Correct or remove](https://millionrounds.com/corrections?person=andrew-bialecki)[Is this you? Claim it](https://millionrounds.com/claim?person=andrew-bialecki) ## Rounds they were named in - **Rounds:** 1 - **Led:** 0 - **Disclosed:** $4.5M - **Active:** 2019 2019 - [Postscript](https://millionrounds.com/company/postscript) *Round* **$4.5M** *US* Dec 2019 Joined · +7 investors By stage - Round **1** What they backed Advertising & Adtech **1** Alongside - [Accomplice *1*](https://millionrounds.com/fund/accomplice) - Dennis Steele *1* - Elias Torres *1* - Eric Rea *1* - [Kevin Hale *1*](https://millionrounds.com/fund/kevin-hale) - [Mathilde Collin *1*](https://millionrounds.com/fund/mathilde-collin) - [Paul English *1*](https://millionrounds.com/fund/paul-english) Rounds where a report named this person rather than a firm, matched on name: read it as a strong hint, not proof, since people share names. ## Companies they are listed as backing Portfolio - [Nacelle](https://millionrounds.com/startup/nacelle) - [Postscript](https://millionrounds.com/company/postscript) - [Rally](https://millionrounds.com/startup/rally-corp) - [Unstack](https://millionrounds.com/startup/unstack-inc) - [Wonderment](https://millionrounds.com/startup/wonderment-inc) ## Where they are named on record Filings - SEC Form D · Company raising **Klaviyo, Inc.** Executive Officer, Director on 3 filings · since 2020 Each row is a document a firm filed with a regulator: somebody signed it, and it carries a date. ## Hear them before you pitch them - [The Official SaaStr Podcast](https://millionrounds.com/podcasts/saastr) · 14 Aug 2026 · 44 min SaaStr 873: Agents Are Your New Power Users: How Klaviyo CEO Andrew Bialecki Is Remaking a $1.4B Business for the Agent Era With [Andrew Bialecki](https://millionrounds.com/person/andrew-bialecki) Mentions [Tom Brady](https://millionrounds.com/person/tom-brady) About this episode Before AI, Klaviyo had an insight that changed e-commerce marketing forever: don't show merchants how many emails they sent, show them how much money those emails made. That single shift helped Klaviyo capture 80% market share, earn a cult following among Shopify merchants, and IPO in 2023 with… More on the show's page Listen on Apple PodcastsThe show's page - [The Official SaaStr Podcast](https://millionrounds.com/podcasts/saastr) · 4 Oct 2024 · 50 min SaaStr 762: How to Build a Product Customers Love and Drive Nearly $1B in Revenue Along the Way with Klaviyo CEO Andrew Bialecki and SaaStr CEO and Founder, Jason Lemkin With [Andrew Bialecki](https://millionrounds.com/person/andrew-bialecki) About this episode SaaStr 762: How to Build a Product Customers Love and Drive Nearly $1B in Revenue Along the Way with Klaviyo CEO Andrew Bialecki and SaaStr CEO and Founder, Jason Lemkin Klaviyo is the most awesome SaaS company you don't know enough about yet.:) Join SaaStr CEO and Founder Jason Lemkin and… More on the show's page Listen on Apple PodcastsThe show's page - [Grit](https://millionrounds.com/podcasts/grit) · 15 Jul 2024 · 1h 0m #199 CEO & Co-Founder Klaviyo, Andrew Bialecki: High Slope With [Andrew Bialecki](https://millionrounds.com/person/andrew-bialecki) Mentions [Paul Graham](https://millionrounds.com/fund/paul-graham)[Ed Hallen](https://millionrounds.com/person/ed-hallen) About this episode Guest: Andrew Bialecki, CEO of Klaviyo Whenever the marketing platform Klaviyo is hiring, says CEO Andrew Bialecki, “we sort of don't care so much what skills you have.” Instead, the company looks for “high slope” individuals who are curious and able to continually learn new things. “A big… More on the show's page Listen on Apple PodcastsThe show's page - [The Twenty Minute VC](https://millionrounds.com/podcasts/20vc) · 26 Jun 2024 · 51 min 20VC: Klaviyo's Andrew Bialecki on Going Public in an IPO Winter, Is Klaviyo Under-Priced in Public Markets and Why, Why Every VC Turned Klaviyo Down in the Early Days & How Shopify's Partnership Changed the Game With [Andrew Bialecki](https://millionrounds.com/person/andrew-bialecki) Mentions [Accel](https://millionrounds.com/fund/accel) About this episode Andrew Bialecki is the Co-Founder and CEO of Klaviyo, the platform that powers smarter digital relationships for businesses and their data. To date, Klaviyo has raised over $778M from the likes of Accel, Summit Partners, Sands Capital, and Shopify, and raised an additional $700M after its IPO in… More on the show's page Listen on Apple PodcastsThe show's page - [The Logan Bartlett Show](https://millionrounds.com/podcasts/logan-bartlett-show) · 26 Apr 2024 · 1h 53m EP 101: Andrew Bialecki (CEO, Klaviyo) on Building a $6B Software Company - Klaviyo’s Uncharted Path With [Andrew Bialecki](https://millionrounds.com/person/andrew-bialecki) About this episode Before Andrew Bialecki took Klaviyo public and scaled the company to $6B, he bootstrapped it to over $1M in ARR. In our discussion, Andrew reveals his philosophies around fundraising, finding the best talent, cultivating entrepreneurship inside Klaviyo, scaling culture, and more. (00:00) Intro… Listen on Apple Podcasts - [The Official SaaStr Podcast](https://millionrounds.com/podcasts/saastr) · 18 Jun 2021 · 29 min SaaStr 461: SaaStr CEO and Founder, Jason Lemkin, and Klaviyo CEO, Andrew Bialecki, on the $9.5B Revolution in eCommerce: Part Two With [Andrew Bialecki](https://millionrounds.com/person/andrew-bialecki) Mentions [Revolution](https://millionrounds.com/fund/revolution) About this episode In part two of this series, Klaviyo CEO Andrew Bialecki discusses the nitty-gritty details of the journey from the company's origins to its incredible $9.5 billion valuation. Full video: https://youtu.be/zwzV0muXB64 More on the show's page Listen on Apple PodcastsThe show's page ### Mentioned in Episodes that name Andrew Bialecki in their description, which is not the same as being on them. - [Training Data](https://millionrounds.com/podcasts/training-data) · 23 Sept 2025 · 45 min Why Businesses Are Rejecting the AI They’ve Asked For: Agency CEO Elias Torres With [Elias Torres](https://millionrounds.com/person/elias-torres) Mentions [David Cancel](https://millionrounds.com/fund/david-cancel)[Andrew Bialecki](https://millionrounds.com/person/andrew-bialecki) About this episode Elias Torres has been building AI systems since 1999, from chatbots at IBM to co-founding Drift and now Agency. He believes businesses are caught in an expectation mismatch, demanding AI while rejecting it due to imperfection anxiety. Drawing from his experience scaling HubSpot, Elias explains why… Listen on Apple Podcasts Episodes of [the shows we follow](https://millionrounds.com/podcasts), matched by name. Not them? [Tell us](https://millionrounds.com/corrections?person=andrew-bialecki). ## Find people like Andrew Filter every partner and angel by firm, kind, market and whether we watched them invest. Free with an account. Search people[How we know what we know](https://millionrounds.com/methodology)