Mode VC
Florida

ClearSky

ClearSky, based in Florida, backs cybersecurity and climate/energy startups at Seed, Series A, and Series B, leading rounds with $1-3M checks.

Website LinkedInPortfolioPitch pageTeam page
Entry stageSeed, Series A, Series B
Check size$1M to $3M
Leads roundsYes
FocusCybersecurity, Climate
Latest fundApproximatelyApproximately $1B in capital commitments
Investing team9 peopleNo activity since Sep

Who you would pitch at ClearSky

9 people on the investing team, 5 of them partners who can make the call. Partners are listed first.

Alex Weiss
Alex WeissManaging PartnerHe previously held senior roles at NextEra Energy, Morgan Stanley, Smith Barney, and Paine Webber, and holds degrees from Boston University and…
James Huff
James HuffManaging PartnerHe previously held roles at NextEra Energy, Chicago Venture Partners, and Deloitte.
Erik Straser
Erik StraserPartnerHe previously held roles at Current by General Electric, Mohr Davidow Ventures, and Stanford Angels and Entrepreneurs.
Robert Rauch
Robert RauchPartnerHe previously worked at NextEra Energy and NASA, and holds degrees from the University of Florida and Duke University.
Ryan Crum
Ryan CrumPartnerHe previously held senior roles at Apollo, TIAA-CREF, JPMorgan, and PricewaterhouseCoopers.
Austin Summers
Austin SummersSenior Vice PresidentHe previously worked as an investment banking analyst at SunTrust Robinson Humphrey and Frisch Capital Partners.
Anjali Nagaraja
Anjali NagarajaAssociateShe previously worked as a management consultant on mergers and acquisitions at PricewaterhouseCoopers and holds a B.A. from the University of…
Joseph Wright
Joseph WrightChairman, Investment CommitteeHe has held executive roles at multiple companies and served in government under President Reagan.
Owen Santos
Owen SantosAnalystHe holds degrees from the University of Florida.

Work here and something is wrong? Ask for a correction.

Writes $1M to $3M checks. Its smallest check is larger than 83% of firms in the atlas.

Bars: how many firms in the atlas report each band. Highlighted: this firm.

No recent activity since September 2026. Quiet does not mean closed.

Weekly count of activity updates. Activity is not a confirmed deal.

Before you pitch

Ownership target7-10%

Notable investments

DatabricksNikolaMandiantArctic WolfBigIDHarnessHUMAN SecurityNextrackerCylance

In their words

ClearSky | What’s next.ClearSky is a venture capital and growth equity firm investing in the cybersecurity and sustainable energy sectors.www.clear-sky.com
Founders and investors at a Mode VC gathering

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Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.

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Alert me when ClearSky is active

One email when this firm shows new activity. Nothing else.

Firms like ClearSky

MassMutual Ventures$1M to $10M · active Oct 8
Allstate Strategic Ventures$1M to $10M
Riot Ventures$1M to $30M+ · active Oct 10
Analog Ventures$500K to $3M
SCOR Ventures$1M to $30M
Seven Peaks Ventures$500K to $3M

On these lists

Seed investors in United States2836Series A investors in United States1790Series B investors in United States563Seed climate investors204Series A climate investors160Seed cybersecurity investors100Series A cybersecurity investors77Series B climate investors68

Questions

What stage does ClearSky invest in?

ClearSky reports entry at seed, series a, series b.

How much does ClearSky invest?

ClearSky reports checks of $1M to $3M.

Does ClearSky lead rounds?

Yes. ClearSky says it can lead.

Who are the partners at ClearSky?

Alex Weiss (Managing Partner), James Huff (Managing Partner), Erik Straser (Partner), Robert Rauch (Partner), Ryan Crum (Partner).

Is ClearSky active right now?

No recent activity since September 2026.

Work at ClearSky? Claim or correct this profile.