> ## Documentation Index > Fetch the complete documentation index at: https://docs.zeal.com/llms.txt > Use this file to discover all available pages before exploring further. # Update Company Information > Update an existing company's business details, owner information, or payroll schedule. Patches company information and returns the updated [Company Object](/reference/companies/the-company-object). Only the company object fields documented in this API reference can be patched via this endpoint. ## OpenAPI ````yaml openapi/companies.json patch /companies openapi: 3.1.0 info: title: zeal-api version: '1.0' servers: - url: https://api.zeal.com security: - sec0: [] paths: /companies: patch: summary: Update Company Information description: Update the Company Object operationId: update-company-info requestBody: content: application/json: schema: type: object required: - companyID properties: companyID: type: string description: >- Company ID of the employer (you can access companyID on the Zeal dashboard) first_name: type: string description: First name of business owner or administrator. last_name: type: string description: Last name of business owner or administrator. email: type: string description: Email address of business. business_name: type: string description: Business Name of company business_phone: type: string description: Phone number of company business_address: type: string description: Street address of company's business address business_city: type: string description: City of company's business address business_state: type: string description: State of company's business address business_zip: type: string description: Zip code of company's business address mail_address: type: string description: Mailing address of company mail_city: type: string description: Mailing city of company mail_state: type: string description: Mailing state of company mail_zip: type: string description: Mailing zip code of company ssn: type: string description: SSN of the primary business owner. ownership_percentage: type: integer description: The ownership percentage held by the primary business owner. format: int32 legal_structure: type: string description: The legal structure of the business. enum: - ccorp - corp - estate - foreign_entity - llc - llp - lp - nonprofit - partnership - scheme - scorp - soleprop - trust job_title: type: string description: The job title of the primary business owner. dob: type: string description: >- Date of birth of the primary business owner. This should be in the`MM/DD/YYYY` format. address: type: string description: Address of the primary business owner. address_line2: type: string description: Address line 2 of the primary business owner. city: type: string description: City of the primary business owner. state: type: string description: State of the primary business owner. zip: type: string description: Zip code of the primary business owner. payroll_schedule: type: string description: The default payroll schedule that the company follows enum: - daily - weekly - biweekly - semimonthly - monthly payroll_firstDate: type: string description: The ISO-8601 date of the first regular payroll payroll_firstPayPeriodID: type: string description: Reporting period ID of the first regular payroll responses: '200': description: '200' content: application/json: examples: Result: value: success: true data: companyID: 1e2wu23273238c22ea2 first_name: Richard last_name: Hendricks email: richard@piedpiper.com business_name: Pied Piper business_address: 1 Market St. business_city: San Francisco business_state: CA business_zip: '94110' business_phone: '2025550151' mail_address: 1 Market St. mail_city: San Francisco mail_state: CA mail_zip: '94110' ssn: 22-333-4444 ownership_percentage: 25 dob: 01/01/1990 legal_structure: ccorp job_title: CEO address: 1 Ferry Building city: San francisco state: CA zip: '94105' payroll_firstCheckDate: '2024-08-30' payroll_schedule: weekly payroll_firstPayPeriodID: 6580ce4a3808d60023b4e412 schema: type: object properties: success: type: boolean example: true default: true data: type: object properties: companyID: type: string example: 1e2wu23273238c22ea2 first_name: type: string example: Richard last_name: type: string example: Hendricks email: type: string example: richard@piedpiper.com business_name: type: string example: Pied Piper business_address: type: string example: 1 Market St. business_city: type: string example: San Francisco business_state: type: string example: CA business_zip: type: string example: '94110' business_phone: type: string example: '2025550151' mail_address: type: string example: 1 Market St. mail_city: type: string example: San Francisco mail_state: type: string example: CA mail_zip: type: string example: '94110' ssn: type: string example: 22-333-4444 ownership_percentage: type: integer example: 25 default: 0 dob: type: string example: 01/01/1990 legal_structure: type: string example: ccorp job_title: type: string example: CEO address: type: string example: 1 Ferry Building city: type: string example: San francisco state: type: string example: CA zip: type: string example: '94105' payroll_firstCheckDate: type: string example: '2024-08-30' payroll_schedule: type: string example: weekly payroll_firstPayPeriodID: type: string example: 6580ce4a3808d60023b4e412 '400': description: '400' content: application/json: examples: Result: value: success: false errors: - message: No user with this company ID exists code: 4 schema: type: object properties: success: type: boolean example: false default: true errors: type: array items: type: object properties: message: type: string example: No user with this company ID exists code: type: integer example: 4 default: 0 deprecated: false components: securitySchemes: sec0: type: apiKey in: header name: Authorization x-bearer-format: bearer ````