Private Markets, Angel and Secondary Investing, Sacra

Sacra

Private Markets, Angel and Secondary Investing

Bringing transparency to private markets so investors, founders, and employees can build on conviction. Sacra delivers deeply researched insights on the private companies shaping tomorrow's markets. By surfacing the data, context, and operator perspective that are missing from private markets today, we help secondary buyers and sellers price equity accurately and unlock liquidity for the people building these businesses.

Private Capital Markets

<ul><li>Taxwire raised $2.7M in a pre-seed round announced in January 2025.</li><li>Taxwire provides end-to-end sales tax compliance through a combination of cloud software and expert support.</li><li>Taxwire operates a subscription SaaS model with heavy service components, targeting businesses through a sales-assisted process rather than self-service.</li></ul>

Taxwire raised $2.7M in a pre-seed round announced in January 2025.Taxwire provides end-to-end sales tax compliance through a combination of cloud software and expert support.Taxwire operates a subscription SaaS model with heavy service components, targeting businesses through a sales-assisted process rather than self-service.

<ul><li>In October 2025, Anrok raised a $55M Series C led by Spark Capital, more than doubling its valuation to $525M, with participation from Sapphire Ventures, Khosla Ventures, Sequoia, and Index; customers include Anthropic, Mistral, and Cursor.</li><li>Anrok operates a usage-based SaaS model that combines a monthly subscription fee with a percentage of transaction volume.</li><li>The platform continuously tracks these nexus thresholds across all 45 US states with sales tax (and 80+ international jurisdictions) and alerts finance teams when they need to start collecting tax in a new location.</li></ul>

In October 2025, Anrok raised a $55M Series C led by Spark Capital, more than doubling its valuation to $525M, with participation from Sapphire Ventures, Khosla Ventures, Sequoia, and Index; customers include Anthropic, Mistral, and Cursor.Anrok operates a usage-based SaaS model that combines a monthly subscription fee with a percentage of transaction volume.The platform continuously tracks these nexus thresholds across all 45 US states with sales tax (and 80+ international jurisdictions) and alerts finance teams when they need to start collecting tax in a new location.

<ul><li>Numeral was valued at $350M following its $35M Series B round led by Mayfield in September 2025.</li><li>Numeral provides automated sales tax compliance software that handles the entire workflow from monitoring tax obligations to filing returns and remitting payments.</li><li>The expansion of sales tax to software and digital services represents Numeral's most immediate growth vector.</li></ul>

Numeral was valued at $350M following its $35M Series B round led by Mayfield in September 2025.Numeral provides automated sales tax compliance software that handles the entire workflow from monitoring tax obligations to filing returns and remitting payments.The expansion of sales tax to software and digital services represents Numeral's most immediate growth vector.

<ul><li>Checkout friction in external linking still favors Apple’s in-app flow even at the 30% fee, but the pain line starts at $5-10M in annual revenue for developers to consider routing payments externally to their existing payment processor for web payments like Stripe or Adyen.</li><li>For global enterprises opting out of Apple’s in-app payments, the solution isn’t just Stripe or a single payment processor; it means bringing together a number of regional payment providers like Stripe (US), Adyen (EU), PortOne (South Korea) & Airwallex (SEA) that use local bank rails and enforce local regulation like real-time e-invoicing mandates (EU, LatAm).</li><li>Unbundling their stack from vertically-integrated Stripe payments, billing and tax products, enterprise-level customers shift towards best-in-breed financial SaaS point solutions as they grow — for example in sales tax, adopting an independent tax layer in Taxwire, Anrok ($54M raised, Sequoia) & Avalara (acquired by Vista Equity Partners for $8.4B) that spans multiple payment processors and ledgers.</li></ul>

Checkout friction in external linking still favors Apple’s in-app flow even at the 30% fee, but the pain line starts at $5-10M in annual revenue for developers to consider routing payments externally to their existing payment processor for web payments like Stripe or Adyen.For global enterprises opting out of Apple’s in-app payments, the solution isn’t just Stripe or a single payment processor; it means bringing together a number of regional payment providers like Stripe (US), Adyen (EU), PortOne (South Korea) & Airwallex (SEA) that use local bank rails and enforce local regulation like real-time e-invoicing mandates (EU, LatAm).Unbundling their stack from vertically-integrated Stripe payments, billing and tax products, enterprise-level customers shift towards best-in-breed financial SaaS point solutions as they grow — for example in sales tax, adopting an independent tax layer in Taxwire, Anrok ($54M raised, Sequoia) & Avalara (acquired by Vista Equity Partners for $8.4B) that spans multiple payment processors and ledgers.

Andrew Rea, CEO Of Taxwire, On Why Enterprises Need More Than Stripe

<ul><li>Sales tax is a pretty new problem for many SaaS companies.</li><li>Anrok is the enterprise-grade sales tax solution specifically built for SaaS companies.</li><li>Anrok really works best for these kinds of software companies that are planning for hyper growth.</li></ul>

Sales tax is a pretty new problem for many SaaS companies.Anrok is the enterprise-grade sales tax solution specifically built for SaaS companies.Anrok really works best for these kinds of software companies that are planning for hyper growth.

Michelle Valentine, co-founder And CEO Of Anrok, On The Modularization Of The SaaS Finance Stack

United States

Platform for mid-market e-commerce companies to calculate, collect, and file sales tax across multiple geographies and sales channels

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Taxwire (TAXWIRE US)

Primer: Taxwire - 07 Dec 2025

Platform for mid-market e-commerce companies to calculate, collect, and file sales tax across multiple geographies and sales channels

Sacra

Primer: Anrok - 21 Oct 2025

Software for SaaS companies to automate sales tax calculation, filing, and compliance

Sacra

Primer: Numeral - 25 Sep 2025

Platform automating sales tax compliance for SaaS and e-commerce businesses from registration to remittance

Sacra

Andrew Rea, CEO Of Taxwire, On Why Enterprises Need More Than Stripe

Apple doesn't only provide distribution (saving on sales & marketing expenses) and payments but it also handles fraud, chargebacks, subscriptions,...

Sacra

Michelle Valentine, co-founder And CEO Of Anrok, On The Modularization Of The SaaS Finance Stack

The Sacra interview with Anrok CEO and co-founder Michelle Valentine on building a sales tax solution for SaaS companies and the modern back-office...

Sacra

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