David Hammer

On The Bench

How does this work?

As a PM at Google, I founded the product that eventually became known as DV360, which helps large organizations execute online ad campaigns. DV360 now accounts for more than 10% of Google's revenue. I then started Emissary, the first expert network startup to meaningful crack new use cases in the enterprise, and grew it to north of $10mm ARR before hiring a new CEO. After that, I led product and technology at Hawkfish LLC, which powered the Bloomberg presidential campaign's technology initiatives and then helped power numerous campaigns and initiatives in the 2020 election.

Ask me about
Expert Networks Software
Political Software
advertising technology
Work experience

Dec 2019 - May 2021

Hawkfish LLC

SVP Product, Research, Insights

Doing the most important work I can be doing right now.

May 2013 - Nov 2019


Founder & CEO

Emissary is a marketplace connecting sales organizations seeking an edge with the advisors who provide an inside track to win more deals, waste less time, and make better decisions. Since our launch in 2015, hundreds of companies -- from Fortune 100 multinationals to 20-person startups -- have used Emissary to get the key insights and access they need.


Sep 2006 - Aug 2012


Product manager

Founded the Demand Side Platform (DSP) efforts at Google in early 2010. Created initial product vision, built engineering and initial sales team, helped manage acquisition and integration of Invite Media. Led product + business for DoubleClick Bid Manager, the next-generation Invite Media, a world-class tool to buy real-time inventory on Ad Exchanges. Previously PM for iGoogle, Ads Abuse, and AdX teams. As Ads Abuse PM, led engineering/policy/operational team in charge of preventing bad ads of all sorts from showing at google. Drove massive improvements in efficiency while retaining quality. As iGoogle PM, led the development of numerous new features and drove dramatic growth of Google Gadgets.


Jun 2003 - Aug 2003

Let's Go


Covered Sweden and Finland for Let's Go: Europe.


2002 - 2006

Harvard University

BA, Computer Science

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