Which large banks use AWS?

Data checked Oct 28, 2026 · 38 of 141 banks qualify · 58 sources cited · template updated Oct 30, 2026

AI vendors and platforms · computed from bank profiles and the AWS vendor page; nothing on this page is written by a model. All ranked answers: /banks/leaders

On the public record as of Oct 28, 2026, 38 of the 141 large banks profiled have a dated, sourced profile entry naming AWS (a use case, a timeline move, a platform note or a vendor-page customer record). Ranked by entries naming AWS, the top 5 are BankUnited (11 entries), Commonwealth Bank (10 entries), WaFd Bank (9 entries), Raymond James (7 entries) and NatWest (6 entries). BankUnited's strongest evidence: SAVI internal policy assistant — Per AWS's published case study: built on Anthropic's Claude 2 in Amazon Bedrock with Amazon Kendra, answering employee… (use case, in production, Sep 24, 2026).

141 banks profiled (120 US, 21 non-US) · 38 with matching evidence · ranked answer, not a comparison

Which of the large banks use AWS?

Checked 2026-10-28 · bank profiles and the AWS vendor page
#BankEntries naming AWSStrongest entryStatusDateOn this siteSources
1BankUnited11SAVI internal policy assistant — Per AWS's published case study: built on Anthropic's Claude 2 in Amazon Bedrock with Amazon Kendra, answering employee… (use case, in production, Sep 24, 2026)In productionSep 24, 2026BankUnited profile →Amazon Web Services ↗ · Bank Automation News ↗
2Commonwealth Bank10Strategic partnerships with AWS, Anthropic, Microsoft and OpenAI (use case, in production, Aug 12, 2026)In productionAug 12, 2026Commonwealth Bank profile →Commonwealth Bank of Australia ↗ · Commonwealth Bank of Australia ↗
3WaFd Bank9Talkdesk and AWS contact-centre stack (use case, in production, Jan 20, 2026)In productionJan 20, 2026WaFd Bank profile →Talkdesk (Business Wire, via FinTech Futures) ↗ · Amazon Web Services ↗
4Raymond James7Anthropic Claude on AWS behind the advisor AI tools (use case, in production, May 5, 2026)In productionMay 5, 2026Raymond James profile →WealthManagement.com ↗ · Raymond James ↗
5NatWest6AWS and Accenture five-year data and AI platform (use case, in production, Feb 13, 2026)In productionFeb 13, 2026NatWest profile →Accenture ↗ · NatWest Group plc (company announcement) ↗
6BMO5FICO credit-decision platform on AWS (use case, in production, Oct 13, 2026)In productionOct 13, 2026BMO profile →Amazon Web Services ↗ · Banking Dive ↗
7Huntington5Machine-learning redaction of sensitive data — More than 400 million stored documents scanned and redacted with Amazon Textract, SageMaker and Step Functions at… (use case, in production, Jun 24, 2026)In productionJun 24, 2026Huntington profile →AWS Machine Learning Blog ↗ · American Banker ↗
8BMO Financial Group5AWS and FICO (section, Oct 14, 2026)MentionedOct 14, 2026BMO Financial Group profile →Amazon Web Services ↗ · Banking Dive ↗
9UOB5AWS hybrid cloud and Amazon Bedrock (use case, announced, Oct 9, 2026)AnnouncedOct 9, 2026UOB profile →United Overseas Bank ↗ · United Overseas Bank ↗
10FNBO5AI agents cut financial-crime investigation time by 50% — Nasdaq Verafin agents for EDD and sanctions triage, on AWS Bedrock (move, Jun 24, 2026)PlatformJun 24, 2026FNBO profile →American Banker ↗ · AWS Business Intelligence Blog (guest post by FNBO) ↗
11Citizens5AWS (cloud, Bedrock) (section, Dec 1, 2025)MentionedDec 1, 2025Citizens profile →American Banker ↗ · Bank Automation News ↗
12MUFG4AI Flowchart for overseas back-office standardisation — A serverless application on Amazon Bedrock and Amazon Neptune that grounds the model in an ontology and knowledge… (use case, in production, Oct 8, 2026)In productionOct 8, 2026MUFG profile →Amazon Web Services (AWS Database Blog) ↗
13U.S. Bank4Multi-model, multi-vendor stack — AWS and Kyriba are the named platform partners (use case, in production, Jul 30, 2026)In productionJul 30, 2026U.S. Bank profile →American Banker ↗ · Banking Dive ↗
14Synchrony4OpenAI models across the enterprise — The latest OpenAI models deployed through ChatGPT Work, Codex and AWS Bedrock under an enterprise collaboration (use case, rolling out, Aug 17, 2026)Rolling outAug 17, 2026Synchrony profile →Synchrony (PR Newswire) ↗ · Finextra ↗
15Flagstar4Inside StarIQ: who uses it and how it is governed — Higgins on American Banker's Leaders: one of 12 S2 components, trained on compliance and branch and call-centre… (move, Jul 30, 2026)PlatformJul 30, 2026Flagstar profile →American Banker ↗ · Flagstar Bank ↗
16First Interstate4Model supply chain beneath Fiserv agentOS — agentOS was developed with OpenAI and runs on Amazon Bedrock AgentCore, according to AWS and American Banker (use case, pilot, May 14, 2026)PilotMay 14, 2026First Interstate profile →Fiserv via Amazon press centre ↗ · American Banker ↗
17SoFi3Claude-based code review and agentic test loops — An in-house review bot on Claude on Bedrock, Claude iterating tests to 80% coverage, repo-level skills and AGENTS.md… (use case, in production, Jul 6, 2026)In productionJul 6, 2026SoFi profile →SoFi (engineering blog) ↗
18State Street3Multi-cloud estate — Azure and AWS as the platforms under the AI program (use case, in production, Jul 18, 2025)In productionJul 18, 2025State Street profile →Banking Dive ↗ · CIO Dive ↗
19BBVA3MLOps architecture with AWS inside ADA (use case, rolling out, Jun 5, 2026)Rolling outJun 5, 2026BBVA profile →BBVA ↗ · OpenAI ↗
20Stifel Bank3AWS publishes Stifel's modern data platform design (move, Jul 7, 2025)MentionedJul 7, 2025Stifel Bank profile →AWS Big Data Blog ↗
21Standard Chartered2Incident triage agents at Trust Bank — At Trust, the Singapore digital bank Standard Chartered owns with FairPrice Group, agents on Amazon Bedrock AgentCore… (use case, in production, Sep 30, 2026)In productionSep 30, 2026Standard Chartered profile →Computer Weekly ↗
22USAA2Multi-vendor model strategy — Google Gemini used 'extensively', AWS Bedrock, IBM Watsonx Orchestrate, open-weight models such as Meta Llama watched… (use case, in production, May 13, 2025)In productionMay 13, 2025USAA profile →TechTarget ↗
23Regions2Investor deck details the generative-AI stack — ATLAS Gen AI Gateway (launched Q4 2025), GitHub and Microsoft copilots for more than 12,000 associates, AWS and Azure… (move, Aug 7, 2026)MentionedAug 7, 2026Regions profile →Regions Financial (SEC filing) ↗
24Bank OZK2agentOS built with OpenAI and AWS; marketplace opens with 13 agents (move, May 14, 2026)MentionedMay 14, 2026Bank OZK profile →Fiserv (GlobeNewswire) ↗ · American Banker ↗
25Barclays US220-F names the group AI platform and technology partners — Reports about 100,000 Copilot licences, a Barclays AI platform, AWS, Microsoft, GitLab and Databricks as partners, AI… (move, Feb 10, 2026)MentionedFeb 10, 2026Barclays US profile →SEC (Barclays PLC 20-F) ↗
26Wells Fargo2AWS executive hired to expand AI use (move, Jan 26, 2026)MentionedJan 26, 2026Wells Fargo profile →Bloomberg ↗ · Wells Fargo (Business Wire via Yahoo Finance) ↗
27Ally2Amazon Web Services (section, Jul 31, 2025)MentionedJul 31, 2025Ally profile →American Banker ↗ · TechTarget ↗
28Citi2Citi joins FINOS common controls for AI — Citi, Morgan Stanley, RBC and BMO work with AWS, Microsoft and Google Cloud, building on the cloud controls Citi led… (move, Jun 24, 2025)MentionedJun 24, 2025Citi profile →Banking Dive ↗
29Capital One2Enterprise AI at scale, presented at AWS re:Invent (move, Dec 1, 2024)MentionedDec 1, 2024Capital One profile →Capital One ↗ · SiliconANGLE ↗
30Live Oak2Cloud-native since founding — Live Oak was built on Amazon Web Services from its founding (move, Sep 9, 2024)MentionedSep 9, 2024Live Oak profile →American Banker ↗ · American Banker ↗
31Associated1Chun Schiros, Former Chief Analytics Officer (hired May 2024; now at AWS) (leader, Jul 24, 2026)MentionedJul 24, 2026Associated profile →PR Newswire ↗ · The Financial Brand ↗
32SouthState1Fiserv agentOS — Co-development of banking agents with Fiserv, OpenAI and Amazon Bedrock (section, May 14, 2026)MentionedMay 14, 2026SouthState profile →Fiserv (investor relations) ↗ · American Banker ↗
33JPMorgan1Named one of 12 Project Glasswing launch organisations — Anthropic's announcement lists JPMorganChase beside AWS, Apple, Broadcom, Cisco, CrowdStrike, Google, the Linux… (move, Apr 7, 2026)MentionedApr 7, 2026JPMorgan profile →Anthropic ↗
34Bread Financial1Amazon Web Services and Microsoft (section, Feb 13, 2026)MentionedFeb 13, 2026Bread Financial profile →Bread Financial Holdings (SEC filing) ↗
35Barclays1Amazon Web Services (section, Feb 10, 2026)MentionedFeb 10, 2026Barclays profile →Barclays PLC (SEC 20-F) ↗
36Fifth Third1Amazon Web Services (section, Jan 16, 2025)MentionedJan 16, 2025Fifth Third profile →Forbes ↗ · Fortune ↗
37First Hawaiian1Data architect hired from AWS (move, Oct 19, 2023)MentionedOct 19, 2023First Hawaiian profile →First Hawaiian Bank ↗
38HSBC USA1Amazon Web Services (section, Apr 20, 2023)MentionedApr 20, 2023HSBC USA profile →HSBC USA ↗

Each row quotes one record from bank profiles and the AWS vendor page; the “On this site” link opens the bank's own page or sub-page with every source. Banks absent from the table have nothing matching on the record this site holds.

How is this ranked?

Data: the 141 bank profiles on this site (lib/banks), every entry dated and sourced, plus the bank customers listed on the AWS vendor page (/vendors/amazon-bedrock).

Rule: A bank is listed when at least one use case, timeline move, platform note, section row, number, quote or leader entry on its profile matches the pattern AWS|Amazon Web Services|Amazon Bedrock|Bedrock|Amazon Q|SageMaker, or when the vendor page records it as a customer. Score = number of matching entries. Order: entries, then banks with a matching use case in production, then the newest entry. An entry that only restricts or blocks the vendor's tool is kept, marked "Restricted" and sorted last.

Counts: 38 of 141 profiled banks qualify; 58 distinct sources cited in the table. Data checked 2026-10-28; ranking template updated 2026-10-30.

What are the caveats?

Naming AWS on the public record is evidence of a relationship, a pilot or a policy, not of contract size or exclusivity; many banks use several providers and do not name them all.

Banks absent from the table have nothing matching on the record this site holds, which is not evidence that they do nothing. Each row links the bank's own page, where every entry carries its sources.

Which bank ranks first?

BankUnited leads with 11 entries: SAVI internal policy assistant — Per AWS's published case study: built on Anthropic's Claude 2 in Amazon Bedrock with Amazon Kendra, answering employee… (use case, in production, Sep 24, 2026). Commonwealth Bank is second with 10.

How many large banks name AWS in sourced AI records?

38 of the 141 profiled banks (120 US, 21 non-US groups). Among those listed, 30 are US banks and 8 non-US groups.

What counts, and what does not?

A bank is listed when at least one use case, timeline move, platform note, section row, number, quote or leader entry on its profile matches the pattern AWS|Amazon Web Services|Amazon Bedrock|Bedrock|Amazon Q|SageMaker, or when the vendor page records it as a customer. Score = number of matching entries. Order: entries, then banks with a matching use case in production, then the newest entry. An entry that only restricts or blocks the vendor's tool is kept, marked "Restricted" and sorted last. Source: the 141 bank profiles on this site (lib/banks), every entry dated and sourced, plus the bank customers listed on the AWS vendor page (/vendors/amazon-bedrock).

Is this a measure of capability?

No. Every row is a sourced fact on the public record: what the bank, a regulator, a filing or an independent outlet has put on the record. The page does not rate how well anything works.

When was this checked, and how often does it update?

The data behind the table was last checked on 2026-10-28 (bank profiles and the AWS vendor page). The page recomputes whenever that dataset changes and is republished with the site; it is never edited by hand.

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