WhosOff
WhosOff is a UK-based cloud SaaS platform, operated by X:drive Computing Limited, that provides online staff leave, sickness, and TOIL management for 2,500+ small, mid-market, and enterprise organizations via web and mobile apps, supported by API, webhooks, SSO, and integrations with major collaboration and identity platforms.
- Company typePrivate
- Founded2005
- HeadquartersCanterbury, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What WhosOff does
WhosOff is a UK-based cloud SaaS platform that provides online staff leave management for small, mid-market, and enterprise organizations. Operated by X:drive Computing Limited (registered in England and Wales, company number 03736333) from Canterbury, the product replaces paper forms, wall planners, and spreadsheets with web and native iOS/Android applications for submitting, approving, and reporting annual leave, sick days, and time-off-in-lieu (TOIL). Underlying technology includes a dedicated REST API spanning authentication, bulk operations, leave, overtime, reporting, user, and department endpoints, event-driven webhooks, calendar feeds for Google Calendar, Microsoft Outlook, Office 365, and iCal, and an integration ecosystem covering Microsoft Teams, Slack, Google Chat, Zapier, AirOps, Active Directory, and SSO via Okta, Azure AD, Auth0, OneLogin, and Google Workspace SAML.
The product surface includes Leave Requests with configurable policies and restrictions, Overtime/TOIL tracking with automatic balance accrual, a Staff Hub for HR document storage with read-and-agree receipts, Bradford Factor and absence reporting, payroll-ready exports, and free ancillary tools (public holiday lookup across 35+ countries and a holiday allowance calculator) used for SEO-driven top-of-funnel acquisition. WhosOff has been in continuous operation since 2005, serves 2,500+ companies across verticals including legal, education, retail, recruitment, healthcare staffing, property, transport, hospitality, and broadcasting, and holds Cyber Essentials certification plus Crown Commercial Service G-Cloud supplier status for UK public-sector procurement.
Revenue is generated via a per-monthly-user subscription with no minimum contract, no setup fee, and optional quarterly or annual invoicing for 50+ user accounts; an 8-week free trial (no credit card required) feeds the self-serve, product-led funnel, complemented by 20-minute personalized demos and UK-based phone support. The company has no disclosed external funding rounds and operates with a 1-10 employee base, indicating a bootstrapped, capital-light operating model.
WhosOff firmographics
Firmographics- Name
- WhosOff
- Legal name
- X:drive Computing Limited
- Website
- https://whosoff.com
- Company type
- Private
- Founded year
- 2005
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- WhosOff is a UK-based cloud SaaS platform, operated by X:drive Computing Limited, that provides online staff leave, sickness, and TOIL management for 2,500+ small, mid-market, and enterprise organizations via web and mobile apps, supported by API, webhooks, SSO, and integrations with major collaboration and identity platforms.
- Ownership category
- akta.pro rank
WhosOff industry classification
Industry- Product category
- Staff Leave Management Software
- NAICS
- Payroll Services (541214), Office Administrative Services (56111)
- SIC
- Services-Computer Programming, Data Processing, Etc. (7370)
- akta.pro primary industry
- Leave Management Administration (PTO, FMLA, Statutory Leave) (BPACAIAG)
- akta.pro secondary industries
- Leave of Absence (LOA) & Absence Management Support (BPAAAIAF), Workforce Time, Attendance & Scheduling Administration (BPAAAIAI)
Keywords
Where WhosOff is headquartered
LocationHeadquarters
- HQ city
- Canterbury
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
WhosOff business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- Subscription - Per User SaaS: Monthly subscription charged per registered user (Monthly Users) on the account. Fees are calculated at the end of each month based on user count and collected via recurring credit card payment on or around the 15th of each month. Optional quarterly or annual pre-payment available for accounts with 50+ users.
- Additional Services: Customer-specific branding or additional software features/services may be offered from time to time as optional add-ons.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Pay-as-you-go | Free Trial - Up to 8 weeks |
| Per seat | Monthly | Standard Subscription - Per User Monthly |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels6 records
WhosOff product offering
Product offeringCore offering
WhosOff provides a cloud-based staff leave management SaaS platform that enables organisations to handle annual leave, sick days, overtime and Time Off In Lieu (TOIL) from a unified dashboard, replacing paper forms, wall planners, and spreadsheets with online requests, one-click approvals, real-time team availability calendars, and payroll-ready reporting. The offering includes native iOS and Android apps, a dedicated REST API, webhooks, calendar feed integration with Outlook and Google Calendar, and SSO with Active Directory, Okta, OneLogin, and Auth0.
Product overview
WhosOff is a single unified cloud-based leave management platform built around its core WhosOff product. The platform centers on an integrated dashboard for managing leave requests, overtime/TOIL, staff records, and reporting. The ecosystem includes a Dedicated API and Webhooks for technical integrations, free auxiliary tools (Public Holiday Lookup, Holiday Calculator) that also drive user acquisition, and Mobile Apps for iOS/Android. The platform does not appear to operate a modular pricing model—all core features are included in the base subscription.
Differentiator
Problem solved
Functional benefit
Products and services
- WhosOff Core Platform Cloud-based staff leave management platform enabling organizations to manage annual leave, sick days, and TOIL from a unified dashboard, replacing paper forms, wall planners, and spreadsheets with automated requests, one-click approvals, and real-time team availability views.
- WhosOff Mobile Apps Free iOS and Android applications enabling employees and managers to submit leave, approve requests, check entitlements, and view team availability from mobile devices.
- Dedicated REST API REST API enabling developers to integrate leave management functionality into external applications with endpoints covering authenticate, bulk operations, leave, overtime, reporting, user management, departments, and more.
- Webhooks Integration Event-driven integration feature that connects WhosOff to third-party systems (Microsoft Teams, Slack, Google Chat, Zapier, AirOps) when events occur such as leave requests, approvals, or TOIL requests.
- Public Holiday Lookup Tool Free online tool for looking up public and bank holidays across 35+ countries, enabling businesses to prepare for the upcoming year and import holidays directly into their WhosOff account.
- Holiday Allowance Calculator Free calculator for computing staff holiday entitlements in days or hours, including pro-rata calculations for part-time staff.
Quantifiable outcome
- Average first response time under 30 minutes for customer support
- +1 more outcomes
Companies that use WhosOff
Customer profileNamed customers21 records
Segments8 records
Ideal customer profiles2 records
WhosOff technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration15 records
Feature9 records
WhosOff partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core.
- Microsoft TeamscoreWhosOff integrates with Microsoft Teams, allowing organizations to receive leave notifications and approvals within their existing Microsoft collaboration environment. Part of broader workplace integration strategy.
- SlackcoreWhosOff provides Slack integration for real-time notifications about leave requests, approvals, and team availability directly in Slack channels.
- Google ChatcoreIntegration with Google Chat enables leave notifications and approvals within Google Workspace environments.
- ZapiercoreZapier integration allows WhosOff to connect with hundreds of third-party applications and automate workflows through no-code integrations.
- Google CalendarcoreCalendar feed subscriptions allow users to sync their WhosOff leave data with Google Calendar for personal schedule visibility.
- Microsoft OutlookcoreCalendar feed subscriptions for Microsoft Outlook (including Office 365) to sync leave data with Outlook calendars.
- Active DirectorycoreActive Directory integration enables enterprise organizations to manage user authentication and provisioning through their existing AD infrastructure.
Scale indicators4 records
Recent moves5 records
Expansion highlights5 records
WhosOff competitors and assessment
Company assessmentDirect peers
- CakeHR: UK-based HR platform with leave management, time off tracking, and basic HRIS features. Direct competitor in the leave management space with some broader HR functionality.
- Absence.io: European leave and absence management SaaS targeting SMB and mid-market. Directly competes with WhosOff on core leave tracking, approvals, and reporting.
- Timetastic: UK-based leave management SaaS platform offering staff holiday booking, absence tracking, and team calendars for SMB and mid-market. Closest direct competitor to WhosOff with overlapping UK focus, pricing model, and feature set.
- LeaveBoard: Cloud-based leave management platform with leave requests, approvals, and absence tracking. Direct overlap with WhosOff's core use cases, serving similar SMB and mid-market customers.
Broad incumbents
- BambooHR: Major global HRIS platform with leave tracking, PTO management, and full HR suite. Provides leave management as one feature within broader HR platform, competing for the same mid-market customers.
- Deputy: Workforce management platform combining shift scheduling, timesheets, and leave management. Overlaps with WhosOff on leave and overtime tracking while extending into shift-based scheduling.
- Personio: European all-in-one HRIS for SMB and mid-market including leave management, payroll, and recruitment. Includes WhosOff's core leave functionality as one feature within a comprehensive HR suite.
- HiBob: Modern HRIS platform for mid-market companies with built-in time off and leave management. Provides WhosOff's functionality as part of a comprehensive HR platform targeting the same mid-market segment.
- CharlieHR: UK HR platform for SMBs offering leave management alongside onboarding, performance, and document management. Overlaps with WhosOff's leave use cases as part of a broader HR product.
- BrightHR: UK HR platform with built-in leave management, document storage, and HR support. Broader incumbent offering that includes WhosOff's core functionality as part of a wider HR suite.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
WhosOff social profiles
Digital presenceWhosOff compliance and trust
Trust signalCompliance2 records
WhosOff financial estimates
Financial estimateRevenue estimate
Valuation estimate
WhosOff leadership team
Management profileNumber of profiles
Profiles2 records
WhosOff funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
WhosOff M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about WhosOff
What does WhosOff do?
WhosOff provides a cloud-based staff leave management SaaS platform that enables organisations to handle annual leave, sick days, overtime and Time Off In Lieu (TOIL) from a unified dashboard, replacing paper forms, wall planners, and spreadsheets with online requests, one-click approvals, real-time team availability calendars, and payroll-ready reporting. The offering includes native iOS and Android apps, a dedicated REST API, webhooks, calendar feed integration with Outlook and Google Calendar, and SSO with Active Directory, Okta, OneLogin, and Auth0.
Is WhosOff a public or private company?
WhosOff is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was WhosOff founded?
WhosOff was founded in 2005. It employs 1 to 10 people.
Where is WhosOff based?
WhosOff is headquartered in Canterbury, United Kingdom, in the Europe region.
How does WhosOff make money?
Two revenue lines are on record. Subscription - Per User SaaS are the primary driver. The others are additional Services.
Who are WhosOff's main competitors?
Direct peers on record are CakeHR, Absence.io, Timetastic and LeaveBoard. Broad incumbents are BambooHR, Deputy, Personio, HiBob, CharlieHR and BrightHR.
Does WhosOff have an API?
Yes. WhosOff provides a dedicated REST API that enables developers to integrate leave management functionality into external applications. The API supports multiple endpoints including: Authenticate, Bulk operations, Company message, Department, Free restricted, Leave, Leave type, Leave type rule, Lookup, Map user tag, Overtime, Overtime type, Reporting, Sandbox, System message, Tag, User, User allowance, User leave type rule, User note, User restriction, WhosOff, and Work. The sitemap indicates extensive API documentation with individual pages for each endpoint. Developer documentation is at www.whosoff.com/features/api.
What industry is WhosOff in?
WhosOff's product category is Staff Leave Management Software. Its primary akta.pro industry code is BPACAIAG, Leave Management Administration (PTO, FMLA, Statutory Leave), with a secondary code of BPAAAIAF, Leave of Absence (LOA) & Absence Management Support. Its NAICS code is 541214 and its SIC code is 7370.