Sierra

Sierra markets Agent OS with one agent across chat, SMS, WhatsApp, email, voice and ChatGPT; current features include memory, recommendations, proactive engagement, traces, monitors, experiments and outcome pricing.

Sierra says agents integrate CRM and systems, execute tasks, use built-in testing and automated monitoring, and are sold with outcome-based pricing.

Agents support cross-channel conversations, integrate order-management and CRM systems, take actions, and route human handoffs with context.

The SDK defines goals and guardrails, composes skills into complex workflows, supports omnichannel deployment, simulations, debugging, secure actions, custom integrations and summarized contact-center handoff.

Agent Studio provides no-code journeys, real-time traces, 40+ prebuilt integrations, custom integrations, simulations and voice simulations.

The data platform retains conversational memory, integrates customer histories, configures recommendation inventory, sets goals and guardrails, triggers proactive outreach and exposes a Headless API.

Current channels include inbound/outbound voice, website and app chat, WhatsApp, Apple Business Chat, SMS, email, Live Assist and ChatGPT; the ChatGPT integration is MCP-compatible.

Voice agents handle inbound and outbound calls, multilingual conversations, voice simulations, human transfers and PCI-compliant card or ACH payments without IVR handoff.

Insights reports CSAT and resolution, supports experiments and decisioning, and exposes monitoring, auditing, reasoning, accessed systems and alerts.

Explorer performs deep research over customer conversations, investigates metrics and hands recommendations to Ghostwriter for agent changes.

Ghostwriter builds production-ready agents from business material, generates simulations, diagnoses failures and proposes improvements.

Sierra documents deterministic controlled system access, supervisor layers, data governance, PII masking, policy filters, PCI DSS Level 1 payments and multiple enterprise compliance certifications.

Workspaces isolate changes, support reviewers and deliberate merges, promote snapshots through QA/staging/production, retain audits and rollback, and integrate CI/CD.

Customers pay for agreed completed outcomes; unresolved or escalated conversations generally are not charged, and blended consumption pricing can cover routing or greeter interactions.

Sierra names cofounders Bret Taylor and Clay Bavor and lists offices across North America, Europe and Asia.

The policy identifies the operating legal entity as Sierra Technologies, Inc. and describes Sierra as a processor of customer data under customer instructions.

Sequoia lists Sierra as founded in 2023, partnered in 2023, and names Clay Bavor and Bret Taylor.

Sierra announced a $950M financing led by Tiger Global and GV at a valuation above $15B; it also said it served over 40% of the Fortune 50.

Sierra announced $350M of additional capital led by Greenoaks at a $10B valuation and said it had hundreds of customers.

Sierra reported over $150M ARR entering its third year, after a first $50M quarter; half its customers had revenue above $1B and one quarter above $10B.

Retail agents recommend products, track orders, submit warranty claims, request refunds, manage subscriptions and cancellations, and connect CRM and inventory systems.

Sierra launched card and ACH payments across chat and voice with payment confirmation, receipts, existing-processor integration and payment-plan support.

Live Assist gives human care associates real-time guidance, drafts, customer context and one-click return/refund actions.

Sierra describes a three-day customer training program covering agent fundamentals, API authentication, live-agent handoff and voice tuning.

Singtel confirms Sierra-powered chat and voice deployment, less-than-10-week launch, 70,000+ cases in six weeks, 73% troubleshooting resolution, 76% roaming-signup completion and 200+ add-on purchases.

Kraken's official press hub identifies its autonomous utility customer-service agents as built on Sierra.

Named Sierra deployment at ADT: AI customer-care agent integrated with ADT data and care systems. The page reports Customer-care inquiries per month 2000000 inquiries per month.

Named Sierra deployment at AG1: Agent answers FAQs, tracks orders, changes shipment dates, adds products and updates shipping addresses. The page reports Perfect conversational and technical quality score frequency 99 % of evaluations.

Named Sierra deployment at Airtable: A single AI support entry point across chat and email with human escalation and internal execution. The page reports Resolution rate 80 %; Equivalent annual workload 95 full-time support agents; Chat launch time 4 weeks; Email launch lag after chat 7 days.

Named Sierra deployment at AOL: Agent handles billing inquiries, payment-method updates, billing explanations and general questions. The page reports Case resolution rate 64 %.

Named Sierra deployment at BARK: Agent handles routine logistics and subscription requests while escalating sensitive conversations. The page reports Customer satisfaction rate 98 %.

Named Sierra deployment at Brex: Agent looks up account data, tracks card deliveries, retrieves transaction details and routes live-agent handoffs with context. The page reports Answer-time improvement 90 % faster; Customer time saved annually 15000 hours per year, more than.

Named Sierra deployment at Capital on Tap: Agent executes 12 customer journeys and hands off cases needing specialists. The page reports Current containment rate 60 %; Day-one containment rate 35 %; Customers requesting a human 4 %.

Named Sierra deployment at Casper: Agent provides product recommendations, personalized support and human escalation across peak traffic. The page reports Peak resolution rate 74 %; Headline CSAT increase 20 %+, increase; All-inquiry resolution 50 %+, inquiries; Product-related inquiry resolution 70 %; Engagement increase 20 %.

Named Sierra deployment at CDW: Agent supports self-service and assisted customer journeys with visibility and control. The page reports Organizations served by CDW 250000 customer organizations, more than.

Named Sierra deployment at Chime: Agent handles member-support requests and routes complex cases to live care. The page reports Resolution rate 70 %+, current.

Named Sierra deployment at Chubbies: Agent answers customer questions in Chubbies' brand style and resolves routine requests. No quantified outcome is disclosed.

Named Sierra deployment at CLEAR: Agent handles member questions and hands off when a member asks for a person. The page reports Customer satisfaction score 4.7 out of 5.

Named Sierra deployment at ecoATM: Voice agent resolves common calls and routes complex interactions. The page reports Inbound calls handled in first month 30 %+, calls.

Named Sierra deployment at Funnel Leasing: Agent handles prospect and resident questions with integrated workflows. The page reports Resolution rate 94 %.

Named Sierra deployment at GoFundMe: Agent guides organizers through fundraiser setup and recommendations. The page reports Donation uplift for agent-assisted organizers 5 % more donations; Projected additional help raised in the US 125000000 USD this year, approximately.

Named Sierra deployment at Guild: Agent provides always-on, multilingual member support with human escalation. The page reports Customer satisfaction score 4.8 out of 5.

Named Sierra deployment at Imprint: One agent architecture supports multiple brands, knowledge sets and cardholder journeys. No quantified outcome is disclosed.

Named Sierra deployment at Kraken: Autonomous agents handle utility service questions through Kraken Customer. The page reports Time to launch 4 weeks; Customer accounts covered 1300000 accounts.

Named Sierra deployment at Madison Reed: Agent handles product guidance, subscription changes and booking journeys. The page reports Subscription-cancellation reduction 50 %; Chat interaction increase 30 x; Likelihood to book a salon appointment 2 x; Online traffic coverage 100 %, up to.

Named Sierra deployment at Marshmallow: Agent handles insurance-service questions with human escalation. The page reports AI-handled customer satisfaction 82 %+, CSAT.

Named Sierra deployment at melin: Agent handles email support, order and product questions. The page reports Case-resolution-rate increase 6 % increase; Email volume redirected to Sierra 47 %.

Named Sierra deployment at Minted: Agent handles order, product and service questions with personalized responses. The page reports Case resolution rate 65 %+, cases; Customer satisfaction 95 %+, CSAT.

Named Sierra deployment at Modern Animal: Agent conducts intake and triages whether a clinic visit is needed. The page reports Cases triaged as not needing a clinic visit 30 %, approximately.

Named Sierra deployment at Next: Agent handles customer-service journeys for the retailer. The page reports Time to live 6 weeks.

Named Sierra deployment at OluKai: Agent answers order, product, return and exchange questions. The page reports Customer satisfaction score 4.5 out of 5, approximately; Resolution rate 70 %, approximately.

Named Sierra deployment at Paychex: Agent handles client questions and routes issues to specialists. The page reports Client satisfaction 95 %; Positive customer-effort score 93 %.

Named Sierra deployment at Pendulum: Agent answers product questions and handles subscription requests. The page reports Resolution rate 75 %+, cases; Customer satisfaction score 4.3 out of 5, more than.

Named Sierra deployment at R1 RCM: Voice agent authenticates patients and handles balance, payment, payment-plan and account questions. The page reports Authentication-time reduction 50 %+, reduction; Inbound calls resolved in early testing 40 %, up to.

Named Sierra deployment at Ramp: Agent executes account-support workflows using SDK-authored logic. The page reports Resolution rate 90 %.

Named Sierra deployment at Redfin: Agent recommends listings and helps users progress toward tour requests. The page reports Listings viewed by conversational users 2 x, approximately; Tour-request likelihood increase 47 %.

Named Sierra deployment at Rocket Mortgage: Digital assistant supports search, origination and outbound prospecting. The page reports Conversion rate for agent users 4 x faster / higher; Loan volume per month attributed to the agent 1000000000 USD per month; Successful chat conversations per month 400000 conversations, more than; Outbound dials per month 1000000 dials, more than.

Named Sierra deployment at RunBuggy: Agent provides accurate order updates and automates transportation-status interactions. The page reports Monthly-call reduction 20 %, approximately; Manual operational touchpoint reduction 15 %, approximately; Time saved per month 1000 hours, nearly.

Named Sierra deployment at Safelite: Agent supports claims-management and service interactions with human routing. No quantified outcome is disclosed.

Named Sierra deployment at ScottsMiracle-Gro: Agent answers product and service questions across digital channels. The page reports Containment rate 65 %.

Named Sierra deployment at Singtel: Shirley verifies customers, resolves troubleshooting, completes roaming sign-ups and purchases add-ons with human oversight. The page reports Time to live 10 weeks, less than; Cases handled 70000 cases, more than; Troubleshooting cases resolved without an officer 73 %; Roaming sign-ups completed without an officer 76 %; Roaming add-ons purchased independently 200 purchases, more than.

Named Sierra deployment at SiriusXM: Agent handles subscription management, payments and account-service journeys. No quantified outcome is disclosed.

Named Sierra deployment at SoFi: Agent handles high-volume member support with human escalation. The page reports Containment rate 61 %; Weekly conversations 50000 conversations, more than; Net Promoter Score increase 33 points.

Named Sierra deployment at Sonos: Agent helps customers troubleshoot products and navigate setup flows. No quantified outcome is disclosed.

Named Sierra deployment at Sun & Ski Sports: Sunny provides product recommendations and ecommerce support. The page reports CSAT improvement 50 %; Product-page conversion rate 3 x; Sunny CSAT 90 %.

Named Sierra deployment at Sutter Health: Agents support SutterSync patients with device troubleshooting and engagement. The page reports Hospitals in health system 25 hospitals; Patients in health system 3500000 patients, more than.

Named Sierra deployment at ThirdLove: Barbra acts as an AI stylist and handles ecommerce service questions. No quantified outcome is disclosed.

Named Sierra deployment at Thrive Market: Agent handles member service and retention interactions. The page reports Case-resolution improvement 50 %+, improvement; AI-handled CSAT 90 %, nearly.

Named Sierra deployment at Tubi: Agent resolves viewer issues and recommends content. The page reports CSAT improvement 7 percentage points; Containment rate 80 %.

Named Sierra deployment at Vivid Seats: Agent accesses order details and supports ticket-service journeys. The page reports Time to live 4 weeks, less than; Containment increase 40 %; CSAT increase 35 %.

Named Sierra deployment at WeightWatchers: Agent manages membership questions and hands off to humans when requested. The page reports Customer satisfaction score 4.6 out of 5; Resolution rate 70 %, approximately.

Named Sierra deployment at Wilson: Agent handles stock/custom order tracking, promotions, returns, warranties and sizing recommendations. The page reports Resolution rate 77 %+, cases.

Named Sierra deployment at Woodside Collection: Agent answers property questions and assists with local recommendations and reservations. No quantified outcome is disclosed.

The official customer hub reports 47 results and links the 47 retained named customer pages.

Sierra reported $100M ARR seven quarters after its February 2024 launch and described agents executing returns, card orders and mortgage origination.

Sierra opened Singapore as a Southeast Asia regional headquarters and said it was hiring to serve its regional customer base.

Sierra publicly launched its platform, defining autonomous agents that act in customer systems under goals, guardrails, security policies and access controls.

Sierra identifies San Francisco as its headquarters and lists current office-based hiring across North America, Europe, Asia and Australia; it does not disclose total headcount.