Cognition's acquisition of TierZero

TierZero makes "AI production agents that live in your stack, solve problems automatically, and get smarter with every issue they resolve."

4 people joined Cognition with TierZero, including 2 founders. 4 have full profiles.

Updated 2026-11-04 · 63 sources

Announced
Jul 20, 2026
Deal
Acquisition, per Accel; Cognition's post welcomes the team
Price
Not disclosed
Joined Cognition
4people, 4 with full profiles
01

What happened, by date

2 dated entries on Jul 20, 2026, each with its source.

  1. Walden Yan welcomed Anhang, Yun and the TierZero team to Cognition.

    Sources1cognition.com

    Accel wrote that Cognition acquired TierZero, that Accel had led its seed round the previous year, and named Brex, Discord and Drata as customers.

    Sources1accel.com
02

Who joined Cognition

Founders first. Each card shows the role before the deal and links to a full profile.

Anhang ZhuSpecial ProjectsCo-founder and CEOFull profile →Yun ParkMember of Technical StaffCo-founder and CTOFull profile →Kevin DelgadoAccount DirectorFounding Account Executive, TierZero AI (acquired by Cognition)Full profile →Jake RachleffMember of Technical StaffFounding Software Engineer, TierZeroFull profile →
Sources1tierzero.ai2accel.com3cognition.com4linkedin.com5tierzero.ai6linkedin.com7linkedin.com8linkedin.com
03

In their own words

1 quote, verbatim, with the date and a link to each.

We are so excited to welcome Anhang, Yun, and the TierZero team to Cognition. … Anhang and Yun have gone deep on this, and we are excited to bring their work on automations into Devin.

Walden YanCognition co-founderJul 20, 2026 · cognition.com
04

Before Cognition

Places where people who joined with TierZero overlapped with each other or with others now or formerly at Cognition.

company · 2020 to 2025

Grafana Labs

  • Alex MaskeStrategic Account Executive - Team Lead, 2022 to 2024
  • Ben JaderstromRegional VP, Enterprise Sales (West), 2020 to 2025
  • Connor HaleyAccount Executive, 2022 to 2024
  • Gardner JohnsonVice President, Global Partners, 2022 to 2024
  • Graham MorenoArea Vice President, Central, Southeast, & LatAm, 2020 to 2024
  • Kevin DelgadoSales Development Representative, 2025 to 2026
  • Maggie CisnerosSenior Field Engineer - OpenTelemetry, Distributed Tracing & Continuous Profiling, 2022 to 2024
  • Marcel SchwagerDirector - Cloud Partnerships, 2023 to 2024
  • Sandeep ShahRegional Director, Enterprise & Strategic Sales - Great Lakes US, 2022 to 2024
  • Tyler MusaSr. Enterprise Account Executive, 2021 to 2024
Sources1linkedin.com2linkedin.com3linkedin.com4linkedin.com5linkedin.com6linkedin.com7linkedin.com8linkedin.com9linkedin.com10linkedin.com11linkedin.com12linkedin.com
company · 2010 to 2022 · same company, not the same team

Google

Sources1linkedin.com2linkedin.com3linkedin.com4linkedin.com5linkedin.com6linkedin.com7linkedin.com8linkedin.com9linkedin.com10linkedin.com11linkedin.com12linkedin.com
school · 2012 to 2025 · at the same time

Stanford University

  • Brandon CamhiBachelor of Arts Economics, 2012 to 2016
  • Cooper de NicolaMaster of Science - MS Computer Science, 2018 to 2023
  • Jake RachleffMaster of Science - MS Computer Science, 2013 to 2018
  • Patton JonesBachelor of Arts - BA International Relations and Affairs, 2010 to 2014
Sources1linkedin.com2linkedin.com3linkedin.com4linkedin.com5linkedin.com6linkedin.com7linkedin.com8linkedin.com9linkedin.com10linkedin.com11linkedin.com12linkedin.com
company · 2015 to 2018 · same company, not the same team

Dropbox

  • Lauren LeeManager of Events & Experiences, 2014 to 2017
  • David MorseDirector - Field Engineering and Customer Success, North America, 2015 to 2018
  • Evan NorbomVideo Production and Streaming Engineer, 2015 to 2019
  • Tyler McCormickEnterprise Sales Executive, 2016 to 2017
  • Andrew HeSoftware Engineering Intern, 2016
  • Jake RachleffSoftware Engineering Intern, 2016
Sources1linkedin.com2linkedin.com3linkedin.com4linkedin.com5linkedin.com6linkedin.com
05

What happened to TierZero

Cognition said it would bring the team's work on automations into Devin.

Sources1cognition.com
06

Cognition's other acquisitions

07

How we made this

Research task Completed
Prompt

Enrich {name}, {title} at Cognition (Devin, Devin Desktop/Windsurf). Dig into what they've built or worked on at Cognition and how they got there, including any company Cognition acquired. Before Cognition, look for the specific teams, desks, labs and co-founders they worked with, and any olympiad, ICPC or training-camp history with teammates. Pull in their open source work and anything they've posted publicly about working at Cognition, quoted word for word. This is for a public page, so skip contact details.

Profiles on this page
4
Autumn research tasks
274
Sources
63