Fundraising Fox

Charles Stack

Investor

Investor at FlashStarts

Cleveland, Ohio

Writes $100K – $5M checks · typically $1.5M

Find your path to Charles

153 people in our graph share verified history with Charles — schools, employers, funds. One of them is your warm intro.

Toby CoppelunlockedCharles: together at Blockchain (2018)
×4Charles: together at BEA Systems
×2Charles: together at Blockchain
×4Charles: together at Kent State University

About

Charles Stack is the founder and CEO of Coworkers.Global, an AI staffing agency offering managed AI agents across specialized roles including startup advisor, paralegal, developer, and finance analyst. With over 20 years of experience at the intersection of software and workplace practices, Stack previously founded Flashline, which was acquired by BEA between 2001 and 2006, and holds background experience in English, law, and software development.

Experience

  1. Coworkers.globalCEOcurrent2026 — presentCleveland, Ohio, United States
  2. Flashstarts, Inc.Innovation Consultant2019 — 2026Greater Cleveland
  3. Flashstarts, Inc.Co-Founder/CEO2012 — 2019Greater Cleveland
  4. North Coast Angel FundMember2009 — 2026Greater Cleveland
  5. The City Club of ClevelandMember Board Of Directors2016 — 2026Greater Cleveland
  6. Blockland SolutionsExecutive Committee2018 — 2020Greater Cleveland
  7. StartMart.USFounder2014 — 2019Greater Cleveland
  8. Ohio Venture AssociationMember / Board Member2006 — 2019Greater Cleveland
  9. SidewaysFounder/ CEO2010 — 2012Greater Cleveland
  10. BEA SystemsSr. Exec. Vice President Web Services Group2006 — 2007San Francisco
  11. Flashline, Inc. (Acquired BEA/Oracle 2006)Founder/CEO1999 — 2006Greater Cleveland
  12. CUC InternationalVice President Internet Retail1996 — 1998Stamford CT
  13. Books.com (Acquired CUC/B&N 1996)Founder/CEO1992 — 1996Greater Cleveland
  14. Parallax LegalSystems, Inc.Founder/CEO1984 — 1991Greater Cleveland

Skills & more

Claude SkillsAnthropic ClaudeClaude Code SubagentsBlockchain5Bitcoin3LIghtning Network2Mobile Applications11E-commerce9Marketing8Business Development7Corporate Development8Email Marketing6
+12 moreManagement ConsultingWeb ServicesWeb DevelopmentSmall BusinessSEOProject ManagementSoftware DevelopmentSEMWeb DesignAnalyticsCloud ComputingDigital Marketing

Languages English

From Charles's professional profile.

Colleagues at FlashStarts

Charles G Stock
Executive Officer at FlashStarts
Jennifer Neundorfer
General Partner at FlashStarts
Shannon Lyons
General Partner at FlashStarts

Frequently asked questions

Who is Charles Stack?
Charles Stack is the founder and CEO of Coworkers.Global, an AI staffing agency offering managed AI agents across specialized roles including startup advisor, paralegal, developer, and finance analyst. With over 20 years of experience at the intersection of software and workplace practices, Stack previously founded Flashline, which was acquired by BEA between 2001 and 2006, and holds background experience in English, law, and software development.
Where does Charles Stack work?
Charles Stack is Investor at FlashStarts.
What check size does Charles Stack write?
Charles Stack typically writes checks of $100K – $5M.
Where did Charles Stack go to school?
Charles Stack studied at Anthropic (Claude, AI Agents); Case Western Reserve University School of Law (Doctor of Law (JD), Intellectual Property); Blockchain (Online Courses, Blockchain).

Same school

Also attended Case Western Reserve University School of Law13

Matt RiehlHead of Government Relations at JumpStart VenturesJim BildnerCEO at The Draper Richards Kaplan FoundationJohn McIlwraithManaging Director at Allos VenturesAlex GoldFounder and General Partner at Harvest Venture PartnersHarry HsingGeneral Counsel at Motley Fool VenturesElena Armenteros de la FuenteLegal Counsel at Orilla Asset Management

+ 7 more

Also attended Kent State University43

Sara Risch, PhDAdvisor at CincyTechBrent BlakeVenture Partner at TFX CapitalAkhil SaklechaAdvisor - Healthtech at Augment VenturesBrianne KimmelFounder & Managing Partner at Worklife VenturesMatt RiehlHead of Government Relations at JumpStart VenturesDewey RiceCreative Services Specialist at Rev1 Ventures

+ 37 more

Also attended Kalamazoo College20

Jack SmithMBA Associate at Energy Capital VenturesLawrence CarterFellow at High Street Equity PartnersJason BarnettSenior Vice President, Lending at Invest DetroitSamer YaghnamChief Operations Officer at The Olayan GroupDan HoevelManaging Director and Head of Fundraising & Investor Relations at Silver Lake PartnersDarrah BixlerChief People Officer, Human Resources at Heitman

+ 14 more

Shared employers

Also worked at North Coast Angel Fund4

Carmen FontanaInvestor at Countdown CapitalTodd FedermanGeneral Partner at North Coast AngelJ. Gary McDanielChief Executive Officer at GeothermalDan QuiggExecutive Officer, Director at Public Insight

Also worked at Sideways1

Aina AbiodunPresident & CEO at VertueLab

Also worked at BEA Systems45

Tim HaleyCo-Founder at Redpoint VenturesPuneet AgarwalInvestor at True VenturesSanjeev KumarVenture Partner at FusionCharles ZedlewskiVenture Partner at Zero Prime VenturesMichael GirdleyManaging Director at GeekdomSam PullaraManaging Director at Sutter Hill Ventures

+ 39 more

Also worked at Flashline, Inc. (Acquired BEA/Oracle 2006)1

Mark WoodkaExecutive Officer, Director at Onshift