Sarus Inc.
Indirect Tax Automation and Managed Tax Support Services
48 employees · est. 2006 · Atlanta, United States
Sarus Inc. is the older company (2019 vs 2006); Fonoa is the larger of the two.
Side-by-Side Comparison
| Metric | Fonoa | Sarus Inc. |
|---|---|---|
| Founded | ||
| Founded | 2019 | 2006 older |
| Headquarters | ||
| Headquarters | Dublin, Ireland | Atlanta, United States |
| Employees | ||
| Employees | 206 larger | 48 |
| Industry | ||
| Industry | API, Financial Services, Fintech | Enterprise |
| Funding Stage | ||
| Funding Stage | Series B | Not tracked yet |
| Total Funding | ||
| Total Funding | $85.00M | Not tracked yet |
| Funding Rounds | ||
| Funding Rounds | 3 | Not tracked yet |
| Services | ||
| Services | Tax ID Validation, Compliance Reporting, Automated E-Invoicing, VAT/GST Return Submission, Real-Time Tax Calculations, Regulatory Updates Integration, Data Sharing for Tax Compliance | Not tracked yet |
| Target Customers | ||
| Target Customers | Global Marketplaces, SaaS Companies, Digital-First Businesses, Engineering Managers, Tax Departments, Businesses Operating Across Multiple Jurisdictions | Not tracked yet |
| Taxonomy | ||
| Taxonomy | Global Tax Automation, End-to-End Tax Solution, Multinational Digital Platforms, Marketplace Tax Compliance, SaaS Tax Solutions, Tax ID Validation, Tax Calculation, E-Invoicing, Tax Return Filing, Digital Tax Reporting, Sales Tax Automation, VAT Compliance, GST Solutions, Tax Technology, Transactional Tax Management | Indirect Tax Automation, Tax Technology, Managed Tax Support Services, Exemption Certificate Outsourcing, Transaction Tax Automation, Tax Technology Support, ECM Services, Tax Technology Partner, Fortune 500 Companies, Sabrix, Vertex, Taxware, VAT, Sales Tax, Use Tax |
| Website | ||
| Website | fonoa.com | sarusinc.com |
About Fonoa
Fonoa, founded in 2019 and headquartered in Ireland, presents itself as an essential player in the API, Financial Services, Fintech, and SaaS arenas. Boasting the slogan "Indirect Tax Technology for Global Businesses," it offers the first global tax automation platform capable of validating tax IDs,...
About Sarus Inc.
Sarus is a highly focused and skilled firm specializing in “Transaction Tax Automation”. Our area of expertise is, in designing and implementing solutions for some of the most complex indirect tax regimes and businesses. We have been the preferred indirect tax technology partner with many Fortune 50...
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Funding, hiring, leadership and stack changes at Fonoa and Sarus Inc. — by email.
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Compiled from the BounceWatch company index. We last looked at Fonoa on 16 Feb 2026, and Sarus Inc. on 13 Sep 2024. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.