ADP

Paychex, Inc. is a U.S.-based provider of payroll, human resources, and benefits outsourcing services for small- and medium-sized businesses. The company offers payroll processing, HR administration, time and attendance, employee benefits, and PEO services. Paychex is publicly traded and serves clients across the United States.

Workday, Inc. is a US-based enterprise software company that provides cloud-native human capital management (HCM), financial management, payroll, talent management, planning, and analytics applications delivered as multi-tenant SaaS. Workday tenant instances ingest employee records, payroll and financial transactions, time and absence data, recruiting and compensation inputs and produce HR and finance ledgers, payroll runs, regulatory filings, operational reports and dashboards; integrations and data exchange use Workday Studio, Enterprise Interface Builder (EIB), SOAP/REST APIs and prebuilt connectors for SSO and ERPs. Founded in 2005 by Aneel Bhusri and Dave Duffield, Workday is commercially licensed enterprise software that includes machine-learning features and an assistant/chat capability but is primarily an enterprise SaaS platform.

Gusto (formerly ZenPayroll) is an American company that provides cloud-based payroll, benefits administration, and human resources software for small and medium-sized businesses. The platform automates payroll processing, tax filings, employee onboarding, and benefits management and is headquartered in San Francisco, California.

Tadata is an AI employee for Slack that handles research and repetitive sales and go-to-market operations work. It can prepare call briefings, research prospects and companies, draft outreach and follow-up emails, fill CRM fields, monitor relevant LinkedIn activity, and suggest recurring automations. It connects to tools such as HubSpot, Attio, Notion, Linear, GitHub, Google Sheets, Gmail, and Google Calendar, as well as external web sources and MCP or API integrations. Tadata runs pre-built agents or builds an agent from a described process. It observes repeated work, learns team preferences, and requests approval before automating tasks or sending messages; connected-tool access is scoped to the user's authorization. The service is presented as model-agnostic, with portable automations, preferences, exceptions, and agent behaviors that can be exported and versioned.

**Stripe** is a financial technology company that provides online payment processing software and APIs for businesses of all sizes. Founded in 2010 by Irish brothers Patrick and John Collison, it lets companies accept payments, manage subscriptions and billing, handle tax compliance, prevent fraud, and access treasury and banking tools. Headquartered in South San Francisco and Dublin, it remains privately held.