Michael Feiertag is a Partner at AllegisCyber Capital. He previously founded tCell and held product leadership roles at Rapid7, Okta, and Blue Coat Systems.

What Michael can write

Writes checks of$3M to $30M
Comes in atSeed, Series A, Series BCan lead the round
Ownership target7-10%At first check
Email the firm[email protected]The firm's own inbox for founders.

AllegisCyber Capital writes $3M to $30M checks, larger than 93% of firms in the atlas.

Bars: how many firms report each check band. Highlighted: AllegisCyber Capital.

Career

  1. Blue Coat Systems
  2. Okta
  3. tCell · founder and CEO
  4. Rapid7
    2017
  5. AllegisCyber Capital · Partner
    Now

Companies founded

tCell

Focus

secure infrastructurenetworkingapplication securityidentity

Education

University of Chicago, BSUniversity of Maryland, MS in mathematics

Also at AllegisCyber Capital

Partners like Michael

At firms with a similar stage, sector and check size.

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Questions

Who is Michael Feiertag?

Michael Feiertag is a Partner at AllegisCyber Capital. He previously founded tCell and held product leadership roles at Rapid7, Okta, and Blue Coat Systems.

How much does Michael Feiertag invest?

Michael Feiertag invests through AllegisCyber Capital, which writes checks of $3M to $30M at seed, series a, series b.

How do I pitch Michael Feiertag?

Email [email protected], the firm's inbox for founders, and name Michael in the subject. A warm intro from a founder AllegisCyber Capital backed works better.

What did Michael Feiertag do before AllegisCyber Capital?

Blue Coat Systems; Okta; founder and CEO at tCell; Rapid7.

Last updated 2026-10-15. Is this you? Ask for a correction.