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  "markdown": "Co-founder and former CEO, TaxCloud.\n\nDavid Campbell co-founded TaxCloud in 2008 and was its CEO. He testified before the US Congress and contributed to the South Dakota v. Wayfair Supreme Court case on sales tax. Before TaxCloud he founded Deep9 and Punch Networks, and he later co-founded WonderTax Labs.\n\n- LinkedIn: https://www.linkedin.com/in/r-david-l-campbell/\n\n## What David builds\n\n- [TaxCloud](https://www.anchorterminal.com/tools/taxcloud.md), graded C, 57.5/100, in Tax calculation \u0026 compliance. TaxCloud is a US sales tax service from The Federal Tax Authority, LLC. Its v3 REST API calculates tax on carts, records orders and refunds for filing, stores exemption certificates, verifies addresses and searches product tax codes. Co-founder and former CEO, TaxCloud, researched 2026-10-28.\n\n## Backed by\n\n- [Camber Partners](https://www.anchorterminal.com/investors/camber-partners/)\n\n## Questions\n\n### Who is David Campbell?\n\nDavid Campbell co-founded TaxCloud in 2008 and was its CEO. He testified before the US Congress and contributed to the South Dakota v. Wayfair Supreme Court case on sales tax. Before TaxCloud he founded Deep9 and Punch Networks, and he later co-founded WonderTax Labs.\n\n### What does The Federal Tax Authority, LLC (TaxCloud) make?\n\nAnchor Terminal lists TaxCloud from The Federal Tax Authority, LLC (TaxCloud). TaxCloud is a US sales tax service from The Federal Tax Authority, LLC. Its v3 REST API calculates tax on carts, records orders and refunds for filing, stores exemption certificates, verifies addresses and searches product tax codes.\n\n### Who has invested in The Federal Tax Authority, LLC (TaxCloud)?\n\nThe sources our research read name Camber Partners.\n\n### How are David's tools graded?\n\nTaxCloud is graded C, 57.5 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://taxcloud.com/\n- https://taxcloud.com/contact-us/\n- https://taxcloud.com/authors/david-campbell/\n- https://taxcloud.com/about-us/\n\nThese are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.\n",
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