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

AI communications and public relations software for media research, campaign planning, drafting, and coverage monitoring.

<ul><li>Honeyjar announced a $2M pre-seed round in December 2025, co-led by Heather Hartnett of Human Ventures and Kevin Mahaffey of SNR Ventures.</li><li>Honeyjar is an AI communications platform.</li><li>Honeyjar competes directly with Muck Rack, Cision, Meltwater, and Semrush's Prowly for media research, monitoring, and communications workflows.</li></ul>

Honeyjar announced a $2M pre-seed round in December 2025, co-led by Heather Hartnett of Human Ventures and Kevin Mahaffey of SNR Ventures.Honeyjar is an AI communications platform.Honeyjar competes directly with Muck Rack, Cision, Meltwater, and Semrush's Prowly for media research, monitoring, and communications workflows.

WindBorne operates autonomous weather balloons and sells atmospheric observations and AI-powered forecasts to government agencies and businesses.

<ul><li>WindBorne reported that revenue tripled over the twelve months through August 2026, as its fleet expanded to more than 600 autonomous weather balloons.</li><li>In October 2026, the US Air Force awarded WindBorne its largest contract to date, with a ceiling of $49M and $1.7M in orders placed at announcement.</li><li>WindBorne raised a $37M Series B in August 2026, co-led by Khosla Ventures and Galvanize with participation from Translink Capital, Biprogy, Lux Capital, and existing investors.</li></ul>

WindBorne reported that revenue tripled over the twelve months through August 2026, as its fleet expanded to more than 600 autonomous weather balloons.In October 2026, the US Air Force awarded WindBorne its largest contract to date, with a ceiling of $49M and $1.7M in orders placed at announcement.WindBorne raised a $37M Series B in August 2026, co-led by Khosla Ventures and Galvanize with participation from Translink Capital, Biprogy, Lux Capital, and existing investors.

Fully customizable scheduling software for individuals and businesses to book meetings and manage appointments

<ul><li>Sacra estimates that Cal hit $11M in annual recurring revenue (ARR) in September 2026, up from $6.2M at the end of 2025 (+111% YoY in 2025).</li><li>Cal has raised a confirmed $32.4M in primary equity across its seed and Series A, with the co-founders retaining approximately 75% of the company after those two rounds.</li><li>Cal's core scheduling apps market is estimated at $674M in 2025, growing toward $2.2B by 2034.</li></ul>

Sacra estimates that Cal hit $11M in annual recurring revenue (ARR) in September 2026, up from $6.2M at the end of 2025 (+111% YoY in 2025).Cal has raised a confirmed $32.4M in primary equity across its seed and Series A, with the co-founders retaining approximately 75% of the company after those two rounds.Cal's core scheduling apps market is estimated at $674M in 2025, growing toward $2.2B by 2034.

AI coworker that executes business tasks inside Slack and Microsoft Teams

<ul><li>Sacra estimates that Viktor hit $50M in annualized revenue in September 2026.</li><li>Viktor raised a $75M Series A led by Accel in May 2026, with angel participation from Slack co-founders Stewart Butterfield and Cal Henderson and Vercel founder Guillermo Rauch.</li><li>In October 2026, Viktor listed more than 70,000 teams using its AI coworker across marketing, operations, finance, and engineering.</li></ul>

Sacra estimates that Viktor hit $50M in annualized revenue in September 2026.Viktor raised a $75M Series A led by Accel in May 2026, with angel participation from Slack co-founders Stewart Butterfield and Cal Henderson and Vercel founder Guillermo Rauch.In October 2026, Viktor listed more than 70,000 teams using its AI coworker across marketing, operations, finance, and engineering.

Chatbot-based personal finance tool for Gen Z offering credit coaching and cash advances

<ul><li>Sacra estimates Cleo reached $400M in annualized revenue in May 2026, up 20% from the $333M run rate it reported at the end of 2025 and more than double its $186M run rate at the end of 2024.</li><li>Cleo generated $254.1M in revenue in 2025, up 87% from $135.7M in 2024 and $65.9M in 2023.</li><li>Cleo reported an $18.6M operating loss and a $39.4M net loss in 2025.</li></ul>

Sacra estimates Cleo reached $400M in annualized revenue in May 2026, up 20% from the $333M run rate it reported at the end of 2025 and more than double its $186M run rate at the end of 2024.Cleo generated $254.1M in revenue in 2025, up 87% from $135.7M in 2024 and $65.9M in 2023.Cleo reported an $18.6M operating loss and a $39.4M net loss in 2025.

Sacra
Private Markets, Angel and Secondary Investing

Primer: Honeyjar - 13 Oct 2026

AI communications and public relations software for media research, campaign planning, drafting, and coverage monitoring.

Sacra

Primer: WindBorne - 13 Oct 2026

WindBorne operates autonomous weather balloons and sells atmospheric observations and AI-powered forecasts to government agencies and businesses.

Sacra

Primer: Cal.com - 13 Oct 2026

Fully customizable scheduling software for individuals and businesses to book meetings and manage appointments

Sacra

Primer: Viktor - 12 Oct 2026

AI coworker that executes business tasks inside Slack and Microsoft Teams

Sacra

Primer: Cleo - 12 Oct 2026

Chatbot-based personal finance tool for Gen Z offering credit coaching and cash advances

Sacra