# Who uses Sierra? 50 companies use Sierra on usedby: 37 confirmed, 13 observed and 0 signals. 10% of them are in Fintech & Payments. Confirmed or observed customers include SoftBank, Uber and Vanguard. Latest check 2026-10-07: 50 of 50 companies checked, from 35 public sources. > Conversational AI agent platform for enterprise customer service across chat, voice, email and messaging. - Category: [Customer Service Automation](https://www.usedby.ai/tools/category/customer-service-automation.md) - Website: [sierra.ai](https://sierra.ai/) ## Customers Every line is a customer, at one of three proof levels: confirmed (a case study, a named quote or a press release), observed (the vendor shows the company on its own pages) or signal (a job post shows the company's employees use the tool, the weakest proof). The first public proof is the first public page we found, not an adoption date. | Company | Industry | Proof | First public proof | Source | |---|---|---|---|---| | [SoftBank](https://www.usedby.ai/companies/softbank.md) | Investment & VC | Confirmed | On or before July 2026 | [sierra.ai](https://sierra.ai/customers), captured 2026-10-07 | | [Uber](https://www.usedby.ai/companies/uber.md) | Mobility & Ride-hailing | Observed | On or before August 2026 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Vanguard](https://www.usedby.ai/companies/vanguard.md) | Investment & VC | Observed | On or before June 2026 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Wayfair](https://www.usedby.ai/companies/wayfair.md) | E-commerce & D2C | Confirmed | On or before June 2025 | [sierra.ai](https://sierra.ai/customers), captured 2026-10-07 | | [Discord](https://www.usedby.ai/companies/discord.md) | DevTools & Infrastructure | Observed | — | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Docusign](https://www.usedby.ai/companies/docusign.md) | IT Services & System Integration | Observed | On or before June 2026 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Santander](https://www.usedby.ai/companies/santander.md) | Banking & Mortgages | Observed | On or before August 2026 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [ADT](https://www.usedby.ai/companies/adt.md) | Cybersecurity | Confirmed | On or before November 2024 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Airtable](https://www.usedby.ai/companies/airtable.md) | DevTools & Infrastructure | Confirmed | On or before June 2026 | [sierra.ai](https://sierra.ai/customers/airtable), captured 2026-10-07 | | [Chime](https://www.usedby.ai/companies/chime.md) | Fintech & Payments | Confirmed | On or before December 2025 | [sierra.ai](https://sierra.ai/customers/chime), captured 2026-10-07 | | [Ramp](https://www.usedby.ai/companies/ramp.md) | Fintech & Payments | Confirmed | On or before September 2025 | [sierra.ai](https://sierra.ai/customers/ramp), captured 2026-10-07 | | [SoFi](https://www.usedby.ai/companies/sofi.md) | Fintech & Payments | Confirmed | On or before September 2025 | [sierra.ai](https://sierra.ai/customers/sofi), captured 2026-10-07 | | [Rivian](https://www.usedby.ai/companies/rivian.md) | Automotive Manufacturing | Observed | On or before August 2025 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Kraken](https://www.usedby.ai/companies/kraken.md) | Crypto & Web3 | Confirmed | On or before June 2026 | [sierra.ai](https://sierra.ai/customers/kraken), captured 2026-10-07 | | [BARK](https://www.usedby.ai/companies/bark.md) | — | Confirmed | On or before June 2026 | [sierra.ai](https://sierra.ai/customers/bark), captured 2026-10-07 | | [Capital on Tap](https://www.usedby.ai/companies/capital-on-tap.md) | — | Confirmed | On or before August 2026 | [sierra.ai](https://sierra.ai/customers/capital-on-tap), captured 2026-10-07 | | [CarMax](https://www.usedby.ai/companies/carmax.md) | Retail | Confirmed | On or before August 2026 | [sierra.ai](https://sierra.ai/customers/carmax), captured 2026-10-07 | | [CLEAR](https://www.usedby.ai/companies/clear.md) | — | Confirmed | On or before May 2025 | [sierra.ai](https://sierra.ai/customers/clear), captured 2026-10-07 | | [ecoATM](https://www.usedby.ai/companies/ecoatm.md) | — | Confirmed | On or before February 2026 | [sierra.ai](https://sierra.ai/customers/ecoatm), captured 2026-10-07 | | [GoFundMe](https://www.usedby.ai/companies/gofundme.md) | — | Confirmed | On or before April 2026 | [sierra.ai](https://sierra.ai/customers/gofundme), captured 2026-10-07 | | [Guild](https://www.usedby.ai/companies/guild.md) | — | Confirmed | On or before January 2026 | [sierra.ai](https://sierra.ai/customers/guild), captured 2026-10-07 | | [Homebase](https://www.usedby.ai/companies/homebase.md) | — | Confirmed | On or before August 2026 | [sierra.ai](https://sierra.ai/customers/homebase), captured 2026-10-07 | | [Imprint](https://www.usedby.ai/companies/imprint.md) | — | Confirmed | On or before June 2026 | [sierra.ai](https://sierra.ai/customers/imprint), captured 2026-10-07 | | [Minted](https://www.usedby.ai/companies/minted.md) | — | Confirmed | On or before May 2025 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Modern Animal](https://www.usedby.ai/companies/modern-animal.md) | — | Confirmed | On or before May 2026 | [sierra.ai](https://sierra.ai/customers/modern-animal), captured 2026-10-07 | | [Next](https://www.usedby.ai/companies/next.md) | Retail | Confirmed | On or before November 2024 | [sierra.ai](https://sierra.ai/customers/next), captured 2026-10-07 | | [OluKai](https://www.usedby.ai/companies/olukai.md) | — | Confirmed | On or before October 2024 | [sierra.ai](https://sierra.ai/customers/olukai), captured 2026-10-07 | | [Paychex](https://www.usedby.ai/companies/paychex.md) | — | Confirmed | On or before June 2026 | [sierra.ai](https://sierra.ai/customers/paychex), captured 2026-10-07 | | [R1 RCM](https://www.usedby.ai/companies/r1-rcm.md) | — | Confirmed | On or before November 2025 | [sierra.ai](https://sierra.ai/customers), captured 2026-10-07 | | [Redfin](https://www.usedby.ai/companies/redfin.md) | — | Confirmed | On or before December 2025 | [sierra.ai](https://sierra.ai/customers), captured 2026-10-07 | | [Rocket Mortgage](https://www.usedby.ai/companies/rocket-mortgage.md) | Banking & Mortgages | Confirmed | On or before November 2025 | [sierra.ai](https://sierra.ai/customers/rocket-mortgage), captured 2026-10-07 | | [RunBuggy](https://www.usedby.ai/companies/runbuggy.md) | — | Confirmed | On or before February 2026 | [sierra.ai](https://sierra.ai/customers/runbuggy), captured 2026-10-07 | | [Safelite](https://www.usedby.ai/companies/safelite.md) | — | Confirmed | On or before December 2025 | [sierra.ai](https://sierra.ai/customers/safelite), captured 2026-10-07 | | [ScottsMiracle-Gro](https://www.usedby.ai/companies/scottsmiracle-gro.md) | Consumer Goods | Confirmed | On or before January 2026 | [sierra.ai](https://sierra.ai/customers/scottsmiraclegro), captured 2026-10-07 | | [Singtel](https://www.usedby.ai/companies/singtel.md) | Telecommunications | Confirmed | On or before March 2026 | [sierra.ai](https://sierra.ai/customers/singtel), captured 2026-10-07 | | [SiriusXM](https://www.usedby.ai/companies/siriusxm.md) | Streaming & Content | Confirmed | On or before February 2024 | [sierra.ai](https://sierra.ai/customers), captured 2026-10-07 | | [StoreEase](https://www.usedby.ai/companies/storeease.md) | — | Confirmed | — | [sierra.ai](https://sierra.ai/customers/storeease), captured 2026-10-07 | | [Sun & Ski Sports](https://www.usedby.ai/companies/sun-ski-sports.md) | — | Confirmed | On or before October 2025 | [sierra.ai](https://sierra.ai/customers), captured 2026-10-07 | | [Sutter Health](https://www.usedby.ai/companies/sutter-health.md) | — | Confirmed | On or before January 2026 | [sierra.ai](https://sierra.ai/customers), captured 2026-10-07 | | [Tubi](https://www.usedby.ai/companies/tubi.md) | — | Confirmed | On or before November 2025 | [sierra.ai](https://sierra.ai/customers/tubi), captured 2026-10-07 | | [Virgin Media O2](https://www.usedby.ai/companies/virgin-media-o2.md) | Telecommunications | Confirmed | On or before October 2026 | [sierra.ai](https://sierra.ai/customers/virgin-media-o2), captured 2026-10-07 | | [Vivid Seats](https://www.usedby.ai/companies/vivid-seats.md) | Marketplace | Confirmed | On or before April 2026 | [sierra.ai](https://sierra.ai/customers/vivid-seats), captured 2026-10-07 | | [Woodside Collection](https://www.usedby.ai/companies/woodside-collection.md) | — | Confirmed | On or before May 2026 | [sierra.ai](https://sierra.ai/customers/woodside-collection), captured 2026-10-07 | | [DIRECTV](https://www.usedby.ai/companies/directv.md) | Telecommunications | Observed | On or before June 2025 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Fanatics](https://www.usedby.ai/companies/fanatics.md) | — | Observed | On or before July 2026 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [FINRA](https://www.usedby.ai/companies/finra.md) | — | Observed | On or before April 2026 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Fiserv](https://www.usedby.ai/companies/fiserv.md) | Fintech & Payments | Observed | On or before July 2026 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Hyatt](https://www.usedby.ai/companies/hyatt.md) | Travel & Hospitality | Observed | On or before September 2026 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Nubank](https://www.usedby.ai/companies/nubank.md) | Fintech & Payments | Observed | On or before March 2026 | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | | [Philippine Airlines](https://www.usedby.ai/companies/philippine-airlines.md) | Airlines & Aviation Services | Observed | — | [sierra.ai](https://sierra.ai/), captured 2026-10-07 | ## Published results Reviewed stories only. A figure is the vendor’s or the customer’s claim, quoted with its label; usedby did not measure it. - [Guild](https://www.usedby.ai/case-studies/guild-sierra.md): **4.8/5** CSAT score matched by Sierra on member chat (Vendor case study, published 2025-12-18) - [RunBuggy](https://www.usedby.ai/case-studies/runbuggy-sierra.md): **~20%** reduction in total monthly calls (Vendor case study, published 2026-02-03) - [Next](https://www.usedby.ai/case-studies/next-sierra.md): **6 weeks** Time to live (Vendor case study, published 2026-02-25) - [Modern Animal](https://www.usedby.ai/case-studies/modern-animal-sierra.md): **~30%** share of cases that don't require an in-clinic (Vendor case study, published 2026-04-14) - [ecoATM](https://www.usedby.ai/case-studies/ecoatm-sierra.md): **30%** Share of inbound calls handled by Echo within the first month (Vendor case study, published 2026-05-04) - [Kraken](https://www.usedby.ai/case-studies/kraken-sierra.md): **four weeks** Time to go live after project launch with a major (Vendor case study, published 2026-06-11) - [Capital on Tap](https://www.usedby.ai/case-studies/capital-on-tap-sierra.md): **60%** Containment rate (Vendor case study, published 2026-06-23) - [CLEAR](https://www.usedby.ai/case-studies/clear-sierra.md): **4.7** Average customer satisfaction score (Vendor case study, published 2025-04-21) - [Woodside Collection](https://www.usedby.ai/case-studies/woodside-collection-sierra.md): story without a checked figure. (Vendor case study, captured by usedby 2026-10-07) - [Imprint](https://www.usedby.ai/case-studies/imprint-sierra.md): story without a checked figure. (Vendor case study, published 2026-05-19) - [Virgin Media O2](https://www.usedby.ai/case-studies/virgin-media-o2-sierra.md): story without a checked figure. (Vendor case study, published 2026-09-24) - [Safelite](https://www.usedby.ai/case-studies/safelite-sierra.md): story without a checked figure. (Vendor case study, published 2025-11-18) 12 of 17 stories shown. Every story: https://www.usedby.ai/case-studies ## Before you buy Read on Sierra’s own pages; the quote was found on the cited page. | Fact | Value | Source | Checked | |---|---|---|---| | Data processing terms | A data processing agreement is available. | [sierra.ai](https://sierra.ai/privacy-policy) | 2026-10-04 | ## Alternatives - [Assembled](https://www.usedby.ai/tools/assembled.md): 39 public customers. Compare: https://www.usedby.ai/compare/assembled-vs-sierra.md - [CallMiner](https://www.usedby.ai/tools/callminer.md): 39 public customers. Compare: https://www.usedby.ai/compare/callminer-vs-sierra.md - [Sanas](https://www.usedby.ai/tools/sanas.md): 48 public customers. Compare: https://www.usedby.ai/compare/sanas-vs-sierra.md - [Decagon](https://www.usedby.ai/tools/decagon.md): 43 public customers. Compare: https://www.usedby.ai/compare/decagon-vs-sierra.md - [Cognigy](https://www.usedby.ai/tools/cognigy.md): 58 public customers. Compare: https://www.usedby.ai/compare/cognigy-vs-sierra.md More: https://www.usedby.ai/alternatives/sierra.md --- Source: https://www.usedby.ai/tools/sierra · How we check: https://www.usedby.ai/methodology