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John Brennan Email & Phone Number

Head of Data at ConsenSys
Location: Los Angeles, California, United States 11 work roles 1 school
1 work email found @att.net 8 phones found area 201, 617, 845, 973, 516, and 347 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 8 phones

Work email b****@att.net
Direct phone (201) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Head of Data
Location
Los Angeles, California, United States
Company size

Who is John Brennan? Overview

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Quick answer

John Brennan is listed as Head of Data at ConsenSys, a with 778 employees, based in Los Angeles, California, United States. AeroLeads shows a work email signal at att.net, phone signal with area code 201, 617, 845, 973, 516, 347, and a matched LinkedIn profile for John Brennan.

John Brennan previously worked as Head of Data & Analytics Engineering at Consensys and Co-Lead/Head of Product, Coven VC DAO at Consensys. John Brennan holds B.S., Computer Science With Honors from University Of Maryland.

Company email context

Email format at ConsenSys

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*@att.net
68% confidence

AeroLeads found 1 current-domain work email signal for John Brennan. Compare company email patterns before reaching out.

Profile bio

About John Brennan

⚙️ ‎‏‏‎ ‎Builder of Products // 🤚 🌎 ‏‏‎ ‎Participant in Crypto Networks // 💵 ‏‏‎ ‎Supporter of Entrepreneurs𝙉𝙤𝙬: 7 years in blockchain and digital assets space working on decentralized autonomous organizations (DAO), token economic models, DeFi, key management, protocol research, and privacy. Currently improving the product experience to onboard the next 100M users to decentralized networks (web3). I also advise and invest both individually (web3) and through Indicator Ventures (web2).𝙋𝙖𝙨𝙩: Founded and sold restaurant tech company, BuzzTable to Sysco (NYSE:SYY) after surpassing 100 million guests. Made lifelong friends on the journey.Never stop improving the mind, body and world around you

Listed skills include Mobile Applications, Entrepreneurship, Start Ups, Mobile Devices, and 16 others.

Current workplace

John Brennan's current company

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ConsenSys
Consensys
Head of Data
Los Angeles, CA, US
Website
Employees
778
AeroLeads page
11 roles · 21 years

John Brennan work experience

A career timeline built from the work history available for this profile.

Head Of Data & Analytics Engineering

Current

Fort Worth, Texas, Us

Consensys is building a complete suite of products to create and participate in web3 including the leading self-custodial wallet (MetaMask), development tools and node infra (Infura), and an EVM equivalent zkEVM rollup (Linea).Our team manages multi-cloud infra to deliver analytics, on-chain data, and insights across the business. We work across all products and departments, and invest significant time and resources towards many in-house solutions focused on user choice and preserving privacy in web3.

May 2021 - Present

Co-Lead/Head Of Product, Coven Vc Dao

Fort Worth, Texas, Us

Experimenting with DAO structures to coordinate venture capital.We built one of the first "Decentralized Venture Capital Funds" using crypto economic incentives to facilitate the collaborative sourcing, diligencing, and approval of early stage venture capital investments. Generated >2x cash-on cash returns in aggregate in less than 3 years, driven by investments in companies like Bison Trails, Relay Payments, and Axie Infinity, with a TVPI of ~5x.

Mar 2018 - Jul 2021

Entrepreneur In Residence

Fort Worth, Texas, Us

tinker and support

Jan 2018 - Sep 2018

Venture Partner

Investing at the pre-seed and seed stage, focusing on B2B software and marketplace, digital health and FinTech

2015 - 2020 ~5 yrs

Senior Director Of Product Management (Vi Acq)

Tampa, Florida, Us

Rebranded BuzzTable to CAKE as Sysco subsidiary. Led product teams across enterprise and consumer initiatives to develop a cohesive b2b2c strategy for Sysco's 400,000 restaurant customers.

2013 - 2015 ~2 yrs

Co-Founder, President & Cto

New York, New York, Us

Restaurant OS and CRM. Acquired by Sysco (NYSE: SYY) rebranded to Cake

2011 - 2015 ~4 yrs

Co-Founder, Ceo

Brooklyn, Ny, Us

Mapping software on top of gmaps

2009 - 2011 ~2 yrs

Lifetime Learner/Tinkerer

Side Projects

Products I've built:Pancake (2017)Home sharing via private networks. Designed UX/Built in React Native. Early (lack of) engagement and match making suggested it wasn't worth the opportunity cost of my time. TravelCo (2017)Auto-generated photo forward itineraries based on your phone's camera. Good reason to learn React Native and write some native bridges.Wanderfoot (2008-09)Visual discovery tool for architects and their clients. Library of 25K+ high quality images. Pinterest before Pinterest. Global Financial Crisis closed many architecture firms (that were our customers), so when they closed shop so did we.99circles (2005-06)One of many social networking startups you've never heard of. The power of (lack of) network effects.Menuocity (2002-06)Online food & delivery service on college campuses. Knew nothing about sales or GTM. Executed the right strategy in the wrong market.Bandindex, acquired privately on eBay (1997-2002)One of the first music discovery tools on the Internet in the early 2000s. Got to meet/interview many of my favorite artists at the time. Best part was the reaction when they realized they were being interviewed by a 15 year old. Used the cash to purchase my first car — nothing left over.

Aug 1997 - 2011

Software Engineer/Project Lead

London, Gb

Built a web-based, collaboration app for intelligence analysts at several 3 letter acronym agencies.

2006 - 2009 ~3 yrs

Program Manager

Redmond, Washington, Us

Worked on RSS strategy and implementation for Office Online as a 2x intern. Got to play in their state-of-the-art usability rooms to test the new Office 2007 product.

May 2004 - Aug 2005
1 education record

John Brennan education

  • University Of Maryland
    University Of Maryland
    Computer Science With Honors
FAQ

Frequently asked questions about John Brennan

Quick answers generated from the profile data available on this page.

What company does John Brennan work for?

John Brennan works for ConsenSys.

What is John Brennan's role at ConsenSys?

John Brennan is listed as Head of Data at ConsenSys.

What is John Brennan's email address?

AeroLeads has found 1 work email signal at @att.net for John Brennan at ConsenSys.

What is John Brennan's phone number?

AeroLeads has found 8 phone signal(s) with area code 201, 617, 845, 973, 516, 347 for John Brennan at ConsenSys.

Where is John Brennan based?

John Brennan is based in Los Angeles, California, United States while working with ConsenSys.

What companies has John Brennan worked for?

John Brennan has worked for Consensys, Indicator Ventures, Cake Corporation, Buzztable (Acquired By Sysco), and Openaction (Acquired).

How can I contact John Brennan?

You can use AeroLeads to view verified contact signals for John Brennan at ConsenSys, including work email, phone, and LinkedIn data when available.

What schools did John Brennan attend?

John Brennan holds B.S., Computer Science With Honors from University Of Maryland.

What skills is John Brennan known for?

John Brennan is listed with skills including Mobile Applications, Entrepreneurship, Start Ups, Mobile Devices, User Experience, Strategy, Javascript, and Web Applications.

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