Home
Loading

aVenture is in Alpha: During this preview period, you should expect the research data to be limited and may not yet meet our exacting standards. We've made the decision to provide early access to our data to showcase the product as we build, but you should not yet rely upon it alone for your investment decisions.

aVenture is in Alpha: During this preview period, you should expect the research data to be limited and may not yet meet our exacting standards. We've made the decision to provide early access to our data to showcase the product as we build, but you should not yet rely upon it alone for your investment decisions.

Get in touch

  • Contact

  • Request a demo

  • Request data updates

  • Add a company

Research

  • Companies

  • Investors

  • People

aVenture

  • Sitemap

  • Feature requests

Member

Backed by

© aVenture Investment Company, 2026. All rights reserved.

San Francisco, CA, USA

Privacy Policy

aVenture Investment Company ("aVenture") is an independent research platform providing detailed analysis and data on startups, venture capital investments, and key industry individuals. It is not a registered investment adviser, broker-dealer, or investment advisor and does not provide investment advice or recommendations. The data provided by aVenture does not constitute recommendations or advice, whether by methodology, analysis, AI-generated content, or a statement written by a staff member of aVenture.

aVenture is not affiliated with any of the people, companies, organizations, government agencies, regulatory bodies, or investment funds we provide coverage for on this site unless explicitly stated otherwise. Users assume full responsibility for decisions made based on information obtained from this platform. Links to external websites do not imply endorsement or affiliation with aVenture. Any links that provide the ability to invest in a primary or secondary transaction in a company are for convenience only and do not constitute solicitations or offers to buy or sell an investment. Investors should exercise heightened precaution and due diligence when investing in private companies, especially those not independently audited.

While we strive to provide valuable insights with objectivity and professional diligence, we cannot guarantee the accuracy of the information provided on our platform. Before making any investment decisions, you should verify the accuracy of all pertinent details for your decision. To the fullest extent permitted by law, aVenture shall not be liable for any direct, indirect, incidental, consequential, or financial damages arising from use of this site, whether by consumers of its contents directly or by persons or organizations covered by our research, even if we are advised of the possibility. Our best-efforts processes and correction request forms do not create a warranty or duty of care.

Profiles on this platform may include content generated in part by large language models (LLMs, artificial intelligence) that aggregate publicly available sources (e.g., SEC EDGAR, public filings, press releases). Source attribution is provided where known; always verify statements and claims here against original sources before relying on any data. Content on our site may contain inaccuracies, omissions, or what are commonly called 'hallucinations' if generated in part or in full by AI / LLMs. The risk can also exist even when content is written by a human, as internal and third-party sources may also have inaccuracies for the same or different reasons. While we randomly audit a proportion of content, this is not exhaustive.

We recommend that an independent auditor be hired to verify the accuracy of the information before relying on it for any sensitive decisions. By accessing this platform, you agree not to rely solely on any information generated by AI, aggregated, or sourced or written otherwise on this site, for investment, financial, or other decisions. aVenture assumes no responsibility for inaccuracies, omissions, or hallucinations. You must independently verify all data from primary sources. Use of this platform constitutes your waiver of claims for reliance-based damages, including negligent misrepresentation. To report an error, request a correction, or dispute information about a company or individual, contact us via our request data updates form.

Loading homepage
Loading
Loading
Home›
Research›
People›
Jeff Warren
AddedMar 31, 2024
UpdatedJun 28, 2026
Jeff Warren

Jeff Warren

Founder & CEO, Closer Mobile

CrunchbaseLinkedIn

Jeff Warren's Career

Closer Mobile
Closer Mobile

Seattle, WA, US

Founder & CEO· C-Suite · Management
Migo
Migo

Seattle, WA, US

Co-Founder & CEO· C-Suite · Management

Create your profile now and gain access to exclusive deals and high-potential startups.

aVenture product preview
aVenture product preview
aVenture product preview

Jeff Warren's Career

Closer Mobile
Closer Mobile
Pre-Seed$1.4M302016Seattle, WA, US
Founder & CEO· C-Suite · Management

Similar to Closer Mobile

CloserwithCloserwithWilmington, DE, USSoftwareest. 2021CloserwithWilmington, DE, US · est. 2021

Closerwith: A Delaware-based software company, founded in 2021.

Pre-Seed · $25k5
ComeCloselyComeCloselyAustin, TX, USEvents, Mobile Appest. 2019ComeCloselyAustin, TX, US · est. 2019

Interactive mobile app creating unique experiences through live events.

Pre-Seed · $700k2
ClozeClozeSomerville, MA, USCRM Softwareest. 2012ClozeSomerville, MA, US · est. 2012

Cloze: Your smart personal assistant for managing professional relationships and contact details.

Seed · $1.2M11
Greater Good AppsGreater Good AppsSeattle, WA, USMobile Appsest. 2012Greater Good AppsSeattle, WA, US · est. 2012

Greater Good Apps: Seattle-based software company since 2012.

Seed · $10.8k50
Migo
Migo
Series A$11.1M112016Seattle, WA, US
Co-Founder & CEO· C-Suite · Management

Leadership at Migo

Bill GrossBill GrossBoard Member

Similar to Migo

MovigoMovigoSan Francisco, CA, USIoT Platforms, Mobility Trackingest. 2013MovigoSan Francisco, CA, US · est. 2013

Movigo Inc: An IoT tech firm specializing in automotive industry solutions, offering a transport comparison app in the US.

Public · $50k6
BestmapBestmapSan Francisco, CA, USMobility, Transportationest. 2019BestmapSan Francisco, CA, US · est. 2019

BestMap: Your all-in-one mobility service platform offering journey planning, analytics, and customer outreach.

Seed · $345k30
MoovmoMoovmoBirmingham, AL, USRide Sharingest. 2018MoovmoBirmingham, AL, US · est. 2018

Moovmo: A ride-sharing platform designed for all, prioritizing accessible transportation needs.

Pre-Seed · $545k2
MobiagMobiagLisbon, Lisbon, PTMobile App, Softwareest. 2011MobiagLisbon, Lisbon, PT · est. 2011

Mobiag provides SaaS-based operations management software for car sharing and rental companies.

Angel · $72k30

Jeff Warren's Co-Investors

Geoff EntressGeoff EntressCo-invested · Migo Series A

Jeff Warren's Similar Executives & Operators

Achmad ZakyAchmad ZakyCo-Founder · BukalapakNugroho HerucahyonoNugroho HerucahyonoCo-Founder · BukalapakWillix HalimWillix HalimCEO · BukalapakWILL WEI CHENGWILL WEI CHENGCo-Founder · DiDiBo ZhangBo ZhangCo-Founder · DiDiDhirubhai H. AmbaniDhirubhai H. AmbaniFounder · Reliance RetailKim Beom-sooKim Beom-sooCo-Founder · KakaoBrian KimBrian KimCo-Founder · Kakao

People Similar to Jeff Warren

Dr. Ekechi E. NwokahDr. Ekechi E. NwokahCEO · MigoJeffrey S GeigerJeffrey S GeigerCEO · Moxi PlatformArtem OzerkovArtem OzerkovCEO · MitgoJeremy GreeneJeremy GreeneFounder · PingTankSean HalterSean HalterCEO · MiO Marketplace