Investors / United States / ClearSky
ClearSky
Venture capital · West Palm Beach, FL, United States · North America
ClearSky is a venture capital and growth equity fund manager that invests in technology companies. It focuses on cybersecurity and energy transition solutions and has managed approximately one billion dollars in capital commitments.
Invests inAI & Machine LearningCybersecurity
In its own wordscybersecurityenergy transitionclimate techsustainabilityimpact investinggrowth equity
Your fit with ClearSky
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsClearSky lists 44 checked portfolio companies on its own site and is named in 1 funding round, 1 of them as lead. Its most frequent entry is Series A, 100% of the companies with a known first round. Its largest themes are AI & Machine Learning (29%), Cybersecurity (21%) and Industrial & Manufacturing (13%). 63% of its companies are based in United States. It invests most often alongside Cisco Investments, DCVC and Energy Impact Partners.
Counts come from funding rounds that name ClearSky, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Round figures show recent activity, not ClearSky's whole history. Rounds on record name 1 company; its own site lists 44. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Entry stage
share of companies by the stage of its first roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 0% |
| Series A | 100% |
| Series B | 0% |
| Growth | 0% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 0 | 0 |
| '26 | 1 | 1 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 80th | 44 companies |
| Recent activity | 59th | 1 rounds in 12 months |
| Early stage | 54th | 0% of entries at pre-seed or seed |
| Evidence | 55th | 2% of companies confirmed by a round |
| Sector focus | 48th | 29% in its largest sector |
| Reach | 91th | 8 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 29% | 18% |
| Cybersecurity | 21% | 4% |
| Industrial & Manufacturing | 13% | 7% |
| Education | 12% | 7% |
| E-commerce & Marketplaces | 9% | 6% |
| Enterprise Software | 5% | 8% |
| Space & Defense | 4% | 3% |
| Fintech | 4% | 12% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Cisco Investments | 5 |
| DCVC | 3 |
| Energy Impact Partners | 3 |
| Insight Partners | 3 |
| Salesforce Ventures | 3 |
| Scale Venture Partners | 3 |
| Alkeon Capital | 2 |
| Artisanal Ventures | 2 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers3784%
- No longer answers00%
- Points to another company716%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with Cisco Investments
Compare ClearSky head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Funds
from public registers and its siteRecent portfolio activity
when companies last raised with ClearSky| Date | Company | Stage |
|---|---|---|
| 2 Sept 2026 | Series A Led |
Round details for ClearSky
Amounts, full round histories and every co-investor in ClearSky's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
44 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Altamira advances critical National Security missions with tech-enabled multi-intelligence solutions and critical operations | CybersecurityAI & Machine Learning | Portfolio page | ||
| AppOmni provides security solutions for SaaS and AI applications for enterprises | CybersecurityAI & Machine Learning | Portfolio page | ||
| Arctic Wolf provides cybersecurity services, including security operations and incident response, to protect organizations from cyber threats. | CybersecurityAI & Machine Learning | Portfolio page | ||
| Authentic8 provides a digital investigations platform for gathering and analyzing intelligence from various sources, including the web and social media. | CybersecurityAI & Machine Learning | Portfolio page | ||
| Portfolio page | ||||
| ClimateTrade operates a marketplace for carbon offsetting and provides a platform for companies and individuals to compensate for their carbon footprint | E-commerce & MarketplacesSpace & Defense | Portfolio page | ||
| Databricks provides a unified platform for data, analytics, and AI. | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Diamanti provides hybrid cloud Kubernetes solutions and related products and services. | Enterprise SoftwareAI & Machine Learning | Portfolio page | ||
| EdgeQ designs and manufactures wireless infrastructure products, including small cells and satellite terminals | Space & DefenseConsumer | Portfolio page | ||
| Envana provides industrial AI for carbon and energy decisions | AI & Machine LearningSpace & Defense | Portfolio page | ||
EducationEducation | Portfolio page | |||
| Fortress provides cybersecurity solutions for supply chain risk management and vulnerability management | CybersecurityAI & Machine Learning | Portfolio page | ||
E-commerce & MarketplacesIndustrial & Manufacturing | Portfolio page | |||
| Guardz provides a unified cybersecurity platform for managed service providers (MSPs). | CybersecurityAI & Machine Learning | Portfolio page | ||
| Harness provides a platform for software development and delivery using artificial intelligence and automation. | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Portfolio page | ||||
| Inky provides email security solutions to block threats and prevent data leaks. | CybersecurityAI & Machine Learning | Portfolio page | ||
| The company is now known as Phoenix Contact Network Communications Inc. | Industrial & Manufacturing | Portfolio page | ||
| Lasso Security provides AI security solutions for enterprises | CybersecurityAI & Machine Learning | Sept 2026Series A | Page + round | |
| Mainspring Energy delivers firm, flexible power when and where you need it. | Industrial & ManufacturingE-commerce & Marketplaces | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- clear-sky.com
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 2 Sept 2026
- Companies checked
- 44
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
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