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>Sacra estimates that Harvey reached $75M in ARR in April 2025, up from $50M at the end of 2024.</li><li>Frontier reasoning models have commodified legal reasoning as a differentiator, with every major LLM company now beating Harvey’s proprietary, fine-tuned legal model on its own BigLaw Bench.</li><li>Like vertical enterprise AI for finance Hebbia, Harvey’s high-cost software represents a bundle of software and high-touch “forward-deployed” services to drive change management, implementation, and adoption within the company.</li></ul>

Sacra estimates that Harvey reached $75M in ARR in April 2025, up from $50M at the end of 2024.Frontier reasoning models have commodified legal reasoning as a differentiator, with every major LLM company now beating Harvey’s proprietary, fine-tuned legal model on its own BigLaw Bench.Like vertical enterprise AI for finance Hebbia, Harvey’s high-cost software represents a bundle of software and high-touch “forward-deployed” services to drive change management, implementation, and adoption within the company.

<ul><li>GPTZero reached $16M in ARR by April 2025, up from $6.8M at the end of 2024.</li><li>The November 2022 launch of ChatGPT enabled students to generate whole essays with a prompt, sparking a panic in education and inspiring the launch of GPTZero (founded in 2023), an AI detection web app that uses a fine-tuned language model to measure how closely each sentence in a text matches the statistical, next-token patterns learned from millions of LLM outputs.</li><li>Like Norton Antivirus riding the 1990’s rise of PC malware, GPTZero is riding the explosion of adversarial ChatGPT copy & paste—and not unlike how Windows bundled antivirus in the OS, GPTZero’s next phase of competition will come from the threat of bundling via 1) incumbents like Turnitin in GPTZero’s core vertical of education, and 2) watermarking in the underlying LLMs by OpenAI and Gemini or new models without signatures at all.</li></ul>

GPTZero reached $16M in ARR by April 2025, up from $6.8M at the end of 2024.The November 2022 launch of ChatGPT enabled students to generate whole essays with a prompt, sparking a panic in education and inspiring the launch of GPTZero (founded in 2023), an AI detection web app that uses a fine-tuned language model to measure how closely each sentence in a text matches the statistical, next-token patterns learned from millions of LLM outputs.Like Norton Antivirus riding the 1990’s rise of PC malware, GPTZero is riding the explosion of adversarial ChatGPT copy & paste—and not unlike how Windows bundled antivirus in the OS, GPTZero’s next phase of competition will come from the threat of bundling via 1) incumbents like Turnitin in GPTZero’s core vertical of education, and 2) watermarking in the underlying LLMs by OpenAI and Gemini or new models without signatures at all.

<ul><li>In January 2025, Sacra estimates Ironclad hit $150M in annual recurring revenue (ARR), up 39% year-over-year.</li><li>Extremely sticky once configured to a customer’s workflows, Ironclad first built those workflows for customers by hand, then launched a rich self-serve workflow builder, scaling to a Sacra-estimated $150M in ARR as of January 2025, up 39% year-over-year.</li><li>Ironclad’s strength in pre-signature structured workflows has made it durable to disruption from LLMs—buying Ironclad time to structure contract data with LLMs to go end-to-end, particularly in executed contracts for sales &amp; procurement.</li></ul>

In January 2025, Sacra estimates Ironclad hit $150M in annual recurring revenue (ARR), up 39% year-over-year.Extremely sticky once configured to a customer’s workflows, Ironclad first built those workflows for customers by hand, then launched a rich self-serve workflow builder, scaling to a Sacra-estimated $150M in ARR as of January 2025, up 39% year-over-year.Ironclad’s strength in pre-signature structured workflows has made it durable to disruption from LLMs—buying Ironclad time to structure contract data with LLMs to go end-to-end, particularly in executed contracts for sales &amp; procurement.

<ul><li>Luminance is pushing furthest into fully autonomous “AI-to-AI” deal-making.</li><li>Growth accelerated in 2024 as Luminance introduced Lumi Go and Auto-Markup for AI-led negotiation, growing to a Sacra-estimated $30M ARR at the end of 2024, up 150% YoY.</li><li>With vertical integration across its model stack, document ingestion, clause flagging, and negotiation workflow, Luminance is positioning to own every high-volume, high-risk document flow across legal, compliance, procurement, and sales—effectively becoming a system of record for AI-native document intelligence.</li></ul>

Luminance is pushing furthest into fully autonomous “AI-to-AI” deal-making.Growth accelerated in 2024 as Luminance introduced Lumi Go and Auto-Markup for AI-led negotiation, growing to a Sacra-estimated $30M ARR at the end of 2024, up 150% YoY.With vertical integration across its model stack, document ingestion, clause flagging, and negotiation workflow, Luminance is positioning to own every high-volume, high-risk document flow across legal, compliance, procurement, and sales—effectively becoming a system of record for AI-native document intelligence.

<ul><li>Cursor is the fastest growing SaaS company of all time, growing 9,900% year-over-year.</li><li>Cursor has gone from an AI-enhanced autocomplete tool to a nearly full-on AI agent as it chases GitHub Copilot ($400M ARR in November).</li><li>Key points via Sacra AI: Sacra estimates that Cursor is the fastest-growing SaaS company of all time from $1M to $100M in ARR, hitting the $100M milestone in roughly 12 months at the end of 2024—faster than Wiz (18 months), Deel (20 months), and Ramp (24 months).</li></ul>

Cursor is the fastest growing SaaS company of all time, growing 9,900% year-over-year.Cursor has gone from an AI-enhanced autocomplete tool to a nearly full-on AI agent as it chases GitHub Copilot ($400M ARR in November).Key points via Sacra AI: Sacra estimates that Cursor is the fastest-growing SaaS company of all time from $1M to $100M in ARR, hitting the $100M milestone in roughly 12 months at the end of 2024—faster than Wiz (18 months), Deel (20 months), and Ramp (24 months).

United States

AI assistant for legal research and document review used by law firms and in-house counsel

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Harvey (HARVEY US)

Harvey At $75M ARR

TL;DR: Harvey has scrapped its fine-tuned legal model and gone multi-model as it shifts towards agentic workflows. Sacra estimates that Harvey...

Sacra

$16M/year Norton AntiVirus For AI Text

TL;DR: With the launch of ChatGPT triggering a panic over AI-generated essays in education, GPTZero launched as an AI detection platform that...

Sacra

Ironclad At $150M ARR

TL;DR: Founded in 2014, Ironclad began as a product-centric company building products for the rising category of legal ops that people would want...

Sacra

Luminance At $30M ARR

TL;DR: AI-native contract review and negotiation platforms are rapidly replacing manual red-lining, and Luminance is pushing furthest into fully...

Sacra

Cursor At $100M ARR

TL;DR: Going from $1M ARR to $100M ARR in 12 months, Cursor is the fastest growing SaaS company of all time, growing 9,900% year-over-year. Now, it...

Sacra

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