Mainstack
Our tools empower businesses to grow revenue and creators to monetize their work seamlessly with no currency limitations
41 employees · est. 2022 · Dallas, United States
QuickFee
QuickFee accelerates A/R for professional service firms, powered by digital payments and our A/R automation platform.
43 employees · est. 2009 · Dallas, United States
QuickFee is the older company (2022 vs 2009).
Side-by-Side Comparison
| Metric | Mainstack | QuickFee |
|---|---|---|
| Founded | ||
| Founded | 2022 | 2009 older |
| Headquarters | ||
| Headquarters | Dallas, United States | Dallas, United States |
| Employees | ||
| Employees | 41 | 43 |
| Industry | ||
| Industry | AI, Enterprise Software, Payments | Financial Services, Payments |
| Funding Stage | ||
| Funding Stage | Pre Seed | Post Ipo Equity |
| Total Funding | ||
| Total Funding | $420.00K | $74.00M |
| Funding Rounds | ||
| Funding Rounds | 2 | 2 |
| Services | ||
| Services | Not tracked yet | Not tracked yet |
| Target Customers | ||
| Target Customers | Not tracked yet | Not tracked yet |
| Taxonomy | ||
| Taxonomy | No-code Tools, Creators, Entrepreneurs, Payments Platform, Global Payments, Showcase Platform, Digital Storefront, Online Business, Payment Processing, Online Marketplace | Professional Service Firms, Accounts Receivable, Integrated Payments Platform, Online Payments, Financing, Recurring Payments, Client Invoicing, SME Lending, Credit Cards, ACH Payments |
| Website | ||
| Website | mainstack.com | quickfee.com |
About Mainstack
Mainstack is an emerging player in the realm of digital payments, catering specifically to creators and entrepreneurs. Founded in 2022, this United States-based company provides a platform that facilitates global sales with local adaptability. Their chief offering revolves around enabling businesses...
About QuickFee
QuickFee is a financial technology startup that aims to expedite accounts receivable processes for professional service firms through an integrated platform for payments and invoicing. Founded in 2009 and headquartered in the United States, QuickFee offers a comprehensive solution to help profession...
We will tell you when either one moves
BounceWatch watches Mainstack and QuickFee for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Mainstack and QuickFee — by email.
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Compiled from the BounceWatch company index. We last looked at Mainstack on 29 May 2025, and QuickFee on 12 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.