Karl Siebrecht
Karl Siebrecht is currently CoFounder and CEO at Flexe, a startup he founded and continues to lead. He has previously held executive and leadership roles at AdReady, aQuantive, Bain & Company, and EnergySavvy.
GeekWire reports: Seattle Tech Week 2026 — AI dominates 250+ events as investors and job-seekers flock to Seattle
GeekWire's Todd Bishop reports from Seattle Tech Week 2026, where AI dominated conversations across more than 250 events and drew significant Bay Area investor interest and job-seeking attendees. Panels and speakers from OpenAI, Mistral AI, Ascend, Oumi and others highlighted debates about foundation models, enterprise data access, and the rush to build on third-party AI.
Flexe Cuts 38% of Workforce, Laying Off 99 Employees Amid Market Challenges Despite $119M Series D Funding
Seattle-based warehousing and logistics startup Flexe cut 38% of its workforce, affecting 99 employees amid market challenges despite a $119 million Series D funding round. The layoffs reflect broader difficulties in the startup sector following pandemic-driven growth.
Seattle Logistics Unicorn Flexe Lays Off 131 Employees, Cutting 33% Amid Freight Market Slowdown
Seattle-based logistics startup Flexe, valued at $1 billion, laid off 33% of its workforce (131 employees) due to a freight industry slowdown. This follows a challenging market environment affecting several logistics startups despite previous pandemic-driven growth.
GeekWire returns in person for 2022 Awards at Showbox SoDo, honoring 60+ finalists across 15 categories with 16,000+ votes
GeekWire held its first in-person GeekWire Awards in three years at Showbox SoDo in Seattle, honoring 60+ finalists across 15 categories with over 16,000 community votes and appearances by local tech leaders and entertainers.
GeekWire surveys Seattle-area VCs to name Pacific Northwest startups they predict will become unicorns in 2022
GeekWire surveyed more than a dozen Seattle-area venture capitalists for their picks of Pacific Northwest startups likely to reach unicorn status this year, compiling a list of candidate companies with reasons for each selection. The piece notes rising valuations nationwide and excludes VCs' own portfolio companies to reduce bias.
Flexe expands Series C with additional $10M, total funding reaches $144M
Seattle warehousing marketplace Flexe expanded its Series C by $10 million after stronger-than-expected investor interest, bringing total funding to $144 million and serving nearly 2,000 warehouses in the U.S. and Canada.
Flexe raises $70M Series C led by T. Rowe Price as e-commerce surge drives on-demand warehousing growth
Seattle-based Flexe raised a $70 million Series C led by T. Rowe Price as pandemic-driven e-commerce growth accelerates demand for its on-demand warehousing marketplace, bringing total funding to $134 million.
Flexe sees surge in demand as pandemic-driven e-commerce growth pushes retailers to buy on-demand warehouse space
E-commerce share of U.S. retail surged during the pandemic, accelerating years of digital adoption in months and boosting demand for Flexe’s on-demand warehousing marketplace. Flexe matches retailers with excess warehouse capacity so companies can scale fulfillment regionally without owning fixed real estate, serving clients like Ralph Lauren, Staples, Ace Hardware and Walmart.
GeekWire Awards 2020 Goes Virtual; Ally Wins Startup of the Year as Bill Gates and Celebrities Celebrate
GeekWire held a virtual GeekWire Awards livestream honoring top Pacific Northwest tech companies and leaders across 12 categories, with winners accepting via Zoom and special video messages from figures like Bill Gates. Seattle startup Ally won Startup of the Year, and the event included entertainment such as The Drunken Tenorperforming an "Opera di Zoom."
Karl Siebrecht
Karl Siebrecht, Co-founder and CEO of FLEXE, shares how he went from being a Diving Officer in the U.S. Navy to becoming a serial entrepreneur. Prior to co-founding FLEXE, Karl was the President at aQuantive and the President and CEO of AdReady. Following a tenure in Ad Tech, a discussion among friends sparked the idea for creating FLEXE, the on-demand warehousing, fulfillment and logistics company founded in 2013. Now at 130 people, 1100+ warehouses and having recently completed their Series B, FLEXE is one of the fastest growing companies in Washington State. Karl discusses the lessons he learned at aQuantive…
Organizations
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Flexe Executive Officer, Director, Promoter 2016–present, CoFounder & CEO 2013–present · current
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AdReady Director 2009–2013, President & CEO 2009–2012 · past
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EnergySavvy Chairman 2008–2019 · past
Education
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The Tuck School of Business at Dartmouth MBA · 1994–1996
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Duke University BA, Economics · 1986–1990
