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§ Private Profile · Austin, TX, USA
Managed accounts receivable service focused on invoice recovery for law firms and small businesses, automating past-due follow-ups.
Based in Dallas, Texas, CollBox provides a managed accounts receivable service that automates follow-ups on past-due invoices through targeted email and phone outreach. The platform integrates directly with major accounting and practice management software systems, including industry platforms such as QuickBooks, Xero, FreshBooks, Clio, and Sage. Operating on a flat-fee monthly subscription model starting at $599, the company primarily serves law firms and growing small businesses by assigning dedicated specialists to handle professional invoice recovery. The organization currently operates with fewer than 25 employees and previously secured $1 million in seed funding in January 2020. As of July 2025, CollBox has surpassed $100 million in total recovered revenue for its clients, with individual law firms recovering an average of $66,000 per month. The company's exact founding year and original founders are not publicly disclosed.
CollBox has raised $1.0M across 1 funding round.
CollBox has raised $1.0M in total across 1 funding round.
CollBox is a technology company building an accounts receivable (AR) management platform that automates debt collection for small businesses, with a primary focus on law firms struggling with past-due invoices.[1][2][3][4][5] It integrates directly with accounting and practice management software like QuickBooks, Xero, Clio, Smokeball, and MyCase to identify overdue accounts, match them to collection agencies or experts, and handle follow-ups via automated notifications, emails, calls, and reporting—helping users recover payments 40% faster on average while preserving client relationships.[1][2][3][4][5] The platform solves the $800B annual unpaid invoice problem by providing enterprise-grade services in three clicks, with law firms recovering an average of $66,000 monthly and over $800,000 lifetime per firm; it has surpassed $100M in total recovered revenue as of July 2025.[2][4][5] Pricing starts at $250/month with flat-fee plans for one-time cleanups or ongoing support, and onboarding takes 1-2 weeks.[1][5]
CollBox emerged from Austin, Texas, as a solution to help small businesses access professional collections without the hassle of manual processes.[2][3] Founded by Matt Darner (Co-Founder) and others, the company raised $1M in seed funding led by Bala Investments, with participation from Long View Technology Ventures, Capital Factory, and Alamo Angel Network—marking early validation from the local startup ecosystem.[3] The idea stemmed from addressing unpaid invoices that plague growing businesses like law firms and accountants; pivotal early traction included integration with major tools like QuickBooks and Clio, leading to rapid adoption and the $100M recovery milestone by mid-2025.[2][3][4][5] Backed by Capital Factory, CollBox evolved from a general small-business tool to a purpose-built AR platform emphasizing AI automation blended with human outreach.[2][4]
CollBox rides the wave of legal tech and fintech convergence, capitalizing on rising economic pressures like inflation and delayed payments that hit law firms' cash flow amid post-pandemic recovery.[4] Its timing aligns with explosive growth in practice management tools (e.g., Clio's ecosystem, where it was a finalist for Best New App), as firms seek automation to cut administrative burdens—especially with AR delays averaging 40% longer in professional services.[2][4][5] Market forces favoring it include the $800B global unpaid invoice crisis and demand for "human-in-the-loop" AI that maintains relationships, differentiating from pure automation tools.[2][4] By accelerating collections and integrating with dominant platforms, CollBox influences the ecosystem, enabling smaller firms to scale like enterprises and boosting overall legal tech adoption.[3][4][5]
CollBox is poised for expansion beyond law firms into broader SMB sectors, leveraging its $100M milestone and seed funding to enhance AI for predictive AR insights and global integrations.[3][4] Trends like embedded fintech, no-contingency pricing, and regulatory pushes for faster B2B payments will propel growth, potentially doubling recovery volumes amid tightening credit markets. Its influence may evolve into a full cash flow platform, solidifying Austin's fintech hub status while empowering more businesses to reclaim the $800B in trapped revenue—proving that friendly persistence pays off in the AR wars.[2][4][5]
CollBox has raised $1.0M in total across 1 funding round.
CollBox's investors include Rajiv Bala, S3 Ventures, Alamo Angels, Capital Factory, Long View Technology Ventures.
CollBox has raised $1.0M across 1 funding round. Most recently, it raised $1.0M Seed in January 2020.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Jan 1, 2020 | $1M Seed | Rajiv Bala | S3 Ventures, Alamo Angels, Capital Factory, Long View Technology Ventures | Announced |