DFX Intelligence
Venture Capital Intelligence
Firms, funds, partners, companies and rounds from sworn filings, firm sites and announcements, kept as a graph with a date and a source on every edge. Facts, inferences and estimates are labelled as such. A fund target is never a close, GAV is never dry powder, and a round size is never an investor’s check.
Firms / Clearsky Advisors LLC
Clearsky Advisors LLC
Institutional venture firmWest Palm Beach, FLclear-sky.comSEC venture capital fund adviserfundraising evidence
ClearSky is a venture capital and growth equity firm investing in the cybersecurity and sustainable energy sectors.
venture manager, reported GAV $311M across 6 vehicles
Importance
44
elevated
Active deployment
90
high
Emerging
0
low
Completeness
75
high
Freshness
100
high
Research priority
28
moderate
Identity and regulatory footprint
- Headquarters
- West Palm Beach, FLadviserinfo.sec.gov
- Office address
- 525 OKEECHOBEE BOULEVARD, #800, West Palm Beach, FL, 33401adviserinfo.sec.gov
- Business phone
- 561-720-1525adviserinfo.sec.gov
- Website
- https://www.clear-sky.com/
- SEC adviser type
- exempt reporting adviseradviserinfo.sec.gov
- SEC exemption claimed
- venture capital fund adviseradviserinfo.sec.govItem 2.B(1): advises solely venture capital funds
- Latest Form ADV
- Mar 27, 2026
- Private funds reported
- 5 (5 venture capital funds)adviserinfo.sec.gov
- Private fund gross assets
- $716Madviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
- business phone
- 561-371-5650adviserinfo.sec.govpublished by the subject
- business phone
- 561-720-1525adviserinfo.sec.govpublished by the subject
Stated thesis versus observed behaviour
70 observed deals
Stated (the firm’s website)
- Sectors
- climate, energy, cybersecurity
- Stages
- growth
- Geography
- global
- Check size
- not stated; DFX does not estimate checks from round sizes
- Self-described
- growth investor
Observed (from deals on record)
Stage at participation
series d plus 100%
Stage at first entry
series d plus 100%
Sectors
unknown 93%Other Technology 4%Other 1%Other Energy 1%
lead rate 0%follow-on rate 0%new logos, 12 months 70
Funds and vehicles
6 reported
| Vehicle | Type | Vintage | Lifecycle | Reported GAV | Owners | Form D sold | Latest Form D |
|---|---|---|---|---|---|---|---|
| XGS Funding LLC | Fund | 2026 form d first sale | Fundraising | unknown | unknown | $6.2M of $20.0M | May 14, 2026 |
| ClearSky Fund IV LP | Fund | 2025 form d first sale | Fundraising | unknown | unknown | $58.4M of $500M | Nov 13, 2025 |
| ClearSky Fund IV International LP | Fund | 2025 form d first sale | Fundraising | unknown | unknown | $38.5M of $500M | Nov 13, 2025 |
| Clearsky Power & Technology Fund II LLC | Fund | 2019 form d first sale | Mature | $231M Mar 29, 2024 | 63 | $200M of $400M | Apr 6, 2020 |
| Clearsky Power & Technology Fund I LLC | Fund | 2012 form d first sale | Harvest | $72.7M Mar 29, 2024 | 50 | $254M of $350M | Feb 3, 2014 |
| Mainspring Funding LLC | Fund | unknown | Unknown | $7.7M Mar 29, 2024 | 37 | unknown | unknown |
GAV is the gross asset value the adviser reported on Form ADV for the vehicle, never the fund’s committed size and never dry powder. Form D sold is the amount sold as of the latest filing, never a final close.
Investment team
16 current, 0 departed
Owen Santos
AnalystAnalyst
Anjali Nagaraja
AssociateAssociate
Joseph Wright
Founder or executiveChairman of the Investment Committee
Daniel Furey
Investor relationsPartner, Head of Global Capital Formation
Alex Weiss
Managing partnerCEO, Co-Founder & Managing Partner
James Huff
Managing partnerCo-Founder & Managing Partner
Energy Transition
OtherPortfolio
Alexander Weiss
PartnerManager · since Mar 1, 2023
Erik Straser
PartnerPartner
Howard Shecter
PartnerExecutive Partner
Robert Rauch
PartnerPartner
Ryan Crum
PartnerPartner
Nick-Anthony Buford
Platform and operationsManaging Director & General Counsel
Vince Nicchi
Platform and operationsController
Guy Nizan
Venture partnerVenture Partner
Austin Summers
Vice presidentSenior Vice President
Investments on record
70 edges, 69 companies, 0 partner-attributed
“This investor” is the amount disclosed for this investor alone; it is unknown unless a source said it. The round size is the whole round.
Co-investors
40 relationships from shared deals, counted for the whole firm
TEN Eleven Ventures, LLC 3 shared · recurringA.capital Ventures 2 shared · recurringSYN Ventures 2 shared · recurringAlkeon Capital Management, LLC 2 shared · recurringDelta-V Capital, LLC 1 shared · one timeSection Partners 1 shared · one timeAnzu Partners 1 shared · one timeNotation Capital Management, LLC 1 shared · one timeEastlink Capital Management, LLC 1 shared · one timeInstitutional Venture 1 shared · one timeElectric Capital Partners, LLC 1 shared · one timeFusion Fund Silicon Valley LLC 1 shared · one timePresidio Partners Management, LLC 1 shared · one timeBuilding Ventures, LLC 1 shared · one timeDeepwater Asset Management, LLC 1 shared · one timeTola Capital Management, LLC 1 shared · one timeCross Creek Advisors, LLC 1 shared · one timeKhosla Ventures, LLC 1 shared · one timeManhattan West Asset Management, LLC 1 shared · one timeBoldstart Ventures Management LLC 1 shared · one timeClean Energy Venture Management, LLC 1 shared · one timePA Capital Management LLC 1 shared · one timeCNK Equity Partners I, LLC 1 shared · one timeScout Vc, LLC 1 shared · one timeLUX Capital Management, LLC 1 shared · one timeLeadout Capital Management, LLC 1 shared · one timeDark Pool Capital 1 shared · one timeSJF Management LLC 1 shared · one timeMindset Consulting (US) LLC 1 shared · one timeTranslink Capital 1 shared · one timeArtisanal Ventures, LLC 1 shared · one time137 Ventures Management, LLC 1 shared · one timeMenlo Ventures 1 shared · one timeSoma Capital Management LLC 1 shared · one timeGlynn Capital Management, LLC 1 shared · one timeBeyda, Gil 1 shared · one timeAvenir Management Company, LLC 1 shared · one timeAmplify Partners 1 shared · one timeInterplay Ventures Early Stage Management LLC 1 shared · one timeGrotech Management Company 1 shared · one time
Limited partners
0 disclosed
No LP commitment on record. An LP edge needs a public disclosure with a quote: a pension report (see Limited partners for the plans read), a fund announcement naming the LP, or a Form ADV owner. The fund page carries the LP’s reported performance.
Timeline
3 dated events
- Sep 16, 2026Query.ai no longer listed on Clearsky Advisors LLC's portfolio pageRemoved from portfolio pagePortfolioInferenceQuery.aiVenture organization websites (about, team, portfolio, thesis, news pages)
- Oct 6, 2023Clearsky Advisors LLC first filed Form ADV (ERA, venture capital fund adviser exemption)First SEC adviser filingOrganizationFactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
- Oct 6, 2023Mainspring Funding LLC first reported on Form ADV by Clearsky Advisors LLC (Venture Capital Fund), GAV $7,775,101Fund first reported on Form ADVFundsFactMainspring Funding LLCSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Classification history
- Sep 12, 2026Institutional venture firm (confirmed, 95%, cls-1)venture manager, reported GAV $311M across 6 vehicles
- Sep 12, 2026Institutional venture firm (confirmed, 95%, cls-1)venture manager, reported GAV $311M across 3 vehicles
Evidence
47 observations from 3 sources