Gusto vs Mainstreet
Gusto
Growing the small business economy with technology and heart 🧡⚡️
4797 employees · est. 2011 · San Francisco, United States
Mainstreet
Streamline your bookkeeping, discover hidden tax credits, and manage your finances with our AI-powered platform
63 employees · est. 2019 · San Francisco, United States
Gusto is the older company (2011 vs 2019); Gusto is the larger of the two.
Side-by-Side Comparison
| Metric | Gusto | Mainstreet |
|---|---|---|
| Founded | ||
| Founded | 2011 older | 2019 |
| Headquarters | ||
| Headquarters | San Francisco, United States | San Francisco, United States |
| Employees | ||
| Employees | 4797 larger | 63 |
| Industry | ||
| Industry | Enterprise Software, Financial Services, Fintech | Financial Services, Fintech, Banking |
| Funding Stage | ||
| Funding Stage | Venture round | Series B |
| Total Funding | ||
| Total Funding | $746.10M | $64.65M |
| Funding Rounds | ||
| Funding Rounds | 15 | 4 |
| Services | ||
| Services | Full-service payroll, Employee benefits management, HR platform, Time and attendance tracking, Tax compliance assistance, Hiring and onboarding tools, Workers' compensation management, Financial benefits advisory | Automated bookkeeping, Tax credit identification and claiming, Business entity formation and compliance, Tax preparation and advisory, Payroll and employee benefits management, Expense management with corporate cards |
| Target Customers | ||
| Target Customers | Small and medium-sized businesses, Startups, HR professionals, Business owners, Accountants | Small businesses, Entrepreneurs, Startups, Freelancers, Consultants |
| Taxonomy | ||
| Taxonomy | Human Capital ManagementPayroll ProcessingBenefits AdministrationTime And Attendance TrackingEmployee OnboardingHR Services +6 | AI-powered Financial PlatformBookkeeping AutomationTax Credit DiscoverySmall Business SupportBack Office SolutionsGovernment Incentives +9 |
| Website | ||
| Website | gusto.com | mainstreet.com |
About Gusto
Gusto is a compelling player in the Enterprise Software, Financial Services, and Fintech sectors, with a strong focus on SaaS and Human Resources. Since its founding in 2011, the United States-based company has demonstrated a significant commitment to enhancing the small business economy through inn...
About Mainstreet
Mainstreet is a promising player in the Fintech and Financial Services sectors, offering an AI-powered platform designed to assist small businesses in streamlining bookkeeping, discovering hidden tax credits, and managing finances efficiently. Established in 2019, the company seeks to provide the k...
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Compiled from the BounceWatch company index. We last looked at Gusto on 31 Oct 2026, and Mainstreet on 19 Feb 2026. 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.
