A9.com
A9.com's Overview
A9.com, established in 2003 as a subsidiary of Amazon, is a research and development company focused on creating powerful, customer-centric search and advertising technologies. Its innovations are integral to Amazon.com, AWS, and other Amazon businesses, enhancing product discovery, user experience, and advertising effectiveness. While A9.com operates under the Amazon umbrella, its foundational work in areas like algorithms, machine learning, and large-scale systems continues to influence how millions of customers find and discover products and information globally.
Where is A9.com's Headquarters?
HQ Function
Historically, the Palo Alto office served as the central R&D hub for search technology, product development, and engineering. These functions now continue within Amazon's broader engineering and research departments.
Notable Features:
The Palo Alto office was known for its concentration of search engineering talent. Current Amazon hubs feature state-of-the-art facilities designed for innovation and collaboration.
Work Culture:
A9.com fostered a culture of innovation, data-driven decision-making, and tackling complex technical challenges, similar to Amazon's broader 'Day 1' culture. This includes a focus on customer obsession and long-term thinking within engineering teams.
HQ Significance:
The Palo Alto location was instrumental in developing Amazon's early and advanced search capabilities. Its legacy is significant as these technologies became foundational to Amazon's e-commerce success and continue to evolve within Amazon.
Values Reflected in HQ: The operations reflect values of technological innovation, customer obsession, rigorous problem-solving, and high standards in engineering, consistent with Amazon's leadership principles.
Location:
The technologies developed by teams historically part of A9.com, now integrated within Amazon, have a global reach. They power search functionalities, product recommendations, and advertising services across Amazon's worldwide marketplaces and AWS. This includes supporting multiple languages, localizing search results, and managing large-scale advertising campaigns for sellers and vendors globally, impacting millions of users in North America, Europe, Asia, Australia, and other regions.
Street Address:
130 Lytton Ave (Historical Palo Alto Address)
City:
Palo Alto (Historically); Sunnyvale & Seattle (Current Amazon Hubs)
State/Province:
CA / WA
Country:
USA
A9.com's Global Presence
Sunnyvale, CA, USA
Address: Within Amazon's Sunnyvale Campus (e.g., Lab126 buildings or other Moffett Park facilities)
Leveraging Silicon Valley's talent pool and tech ecosystem for advanced research and development in search and advertising.
Seattle, WA, USA
Address: Within Amazon's Headquarters Campus (e.g., South Lake Union, Denny Triangle)
Proximity to Amazon's core business units and leadership, facilitating strategic alignment and cross-functional collaboration.
Bangalore, India
Address: Within Amazon's Bangalore Development Centre(s)
Access to a large and skilled tech talent pool in India, supporting global product development and innovation at scale.
Dublin, Ireland
Address: Within Amazon's Dublin Campus (e.g., Burlington Plaza)
Supporting Amazon's European operations, data center management, and tapping into European tech talent.
Buying Intent Signals for A9.com
Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.
Executive Team of A9.com
As of April 2025, A9.com' leadership includes:
Investors of A9.com
A9.com has been backed by several prominent investors over the years, including:
Executive New Hires/Exits in the Last 12 Months
Specific executive changes for 'A9.com' as a distinct entity are not typically reported due to its full integration into Amazon. Leadership changes occur within the broader Amazon organizational structure (e.g., Amazon Ads, Amazon Search). No major A9-specific executive movements have been publicly highlighted in the last 12 months. General Amazon leadership news may cover relevant areas.
Technology (Tech Stack) used by A9.com
Discover the tools A9.com uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
A9.com Email Formats and Examples
As A9.com is an Amazon company, employees use Amazon's corporate email system. Common Amazon email formats include combinations of first name, last name, and initials.
Common Amazon formats: [first_initial][last]@amazon.com (e.g., jsmith@amazon.com), [first].[last]@amazon.com (e.g., john.smith@amazon.com), or [alias]@amazon.com.
Format
jsmith@amazon.com
Example
80%
Success rate
News and media
Amazon Investor Relations • February 1, 2024
Amazon.com Announces Q4 2023 Results, Advertising Grows 27%
Amazon reported strong Q4 2023 results, with advertising services revenue increasing 27% year-over-year to $14.7 billion. This growth underscores the continued strength of Amazon's advertising platform, built upon technology with roots in A9.com's innovations....more
TechCrunch • February 2, 2024
Amazon starts testing Rufus, an AI-powered chatbot for shopping
Amazon began testing 'Rufus,' a generative AI-powered conversational shopping assistant designed to help customers find products, get answers to questions, and make better purchase decisions. This marks a significant advancement in Amazon's search capabilities, evolving from foundational work by A9.com....more
Reuters • May 22, 2024
Amazon to revamp Alexa with generative AI, plans subscription -sources
Amazon is planning a major overhaul of its Alexa voice assistant with generative AI, potentially including a subscription model. This initiative will leverage Amazon's advanced AI and search technologies, areas where A9.com historically contributed significantly....more
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