Passionate about moving leaders to act—with speed and scale. Chair @KleinerPerkins
Joined February 2009
- Tweets 981
- Following 410
- Followers 382,267
- Likes 162
80 Photos and videos
Pinned Tweet
Apr 20
1/ Today, I published a letter on the three forces shaping our energy future: The surging demand for electricity; the growing geopolitical advantage of clean technology; and the disruptive market forces lowering the costs of clean energy.
Read it at speedandscale.com.
Let’s build, friends, build.
8
5
31
5,902
John Doerr retweeted
Apr 21
To make history, you have to honor it.
In 2004, long before I joined Kleiner Perkins, I sat at the iconic table at KP as a young business school student visiting Sand Hill Road for the first time. It was a dream to just be in that room, let alone become a partner at Kleiner Perkins one day.
I couldn't have known how much that moment — and this place — would shape my own journey.
This short film reflects on the people, partnerships, and defining moments that built this firm, and the principles that still guide how we back founders today.
6
5
193
20,599
Apr 20
1/ Today, I published a letter on the three forces shaping our energy future: The surging demand for electricity; the growing geopolitical advantage of clean technology; and the disruptive market forces lowering the costs of clean energy.
Read it at speedandscale.com.
Let’s build, friends, build.
8
5
31
5,902
Apr 20
5/ That’s why, alongside my letter, we’ve updated the Speed & Scale Tracker, with new data from Climate TRACE and sharper metrics. It shows what we need to build, with price targets and deadlines that square with a habitable planet.
2
9
1,420
Apr 20
6/ What was once an opportunity is now an imperative. The moment, once again, is now.
1
10
1,301
15 Jul 2025
It’s hard to imagine a better use for AI than @EvidenceOpen.
Daniel Nadler and his world-class team at OpenEvidence are building what I believe will become an AI-era treasure—a life-saving resource for doctors, patients, and their families.
I can’t imagine the future without it.
15 Jul 2025
This year, more than 100 million Americans will be treated by a doctor who has used OpenEvidence. Word of mouth has propelled @EvidenceOpen into 10,000 hospitals and clinics, helping healthcare providers access, evaluate, and apply the world’s medical knowledge. We’re proud to co-lead their Series B alongside @GVteam as they redefine evidence-based care.
23
12
109
26,336
24 Jun 2025
The 2025 #HeartlandSummit brought together trailblazers committed to unlocking the region’s potential. Thanks to @HeartlandFwd for the opportunity to talk OKRs, AI, & healthcare and to @axios for capturing the energy and purpose behind the movement.
Full article: axios.com/sponsored/collecti…
#HeartlandSummit #MeetIntheMiddle @lumeris @clevelandClinic
6
4
15
7,230
22 Apr 2024
I'm thrilled to share the @speedandscale 2024 Global Climate Tracker. It shows where progress toward net zero has been made, where it's lagging, and what we need to do to get there in time. Dig in.
speedandscale.com/tracker/
52
20
103
22,145
John Doerr retweeted
1 Feb 2024
Exciting news: we’ve raised a $100M Series C, led by Greenoaks and including @kleinerperkins, @sequoia, and other existing investors.
Read more about what we have in store for our next chapter >> watershed.com/blog/series-c
8
27
157
70,713
John Doerr retweeted
23 May 2023
It’s one thing to announce a net zero target. It’s a another thing entirely to sign contracts to deliver on it. Huge props to JPMorgan for inking some major carbon removal purchases. We’re stoked to go put another 28,585 tCO₂ underground @CharmIndustrial wsj.com/articles/jpmorgan-ma…
22
22
120
26,758
15 Nov 2022
ICYMI: @RyPan & Anjali of @SpeedandScale hosted a #COP27 Power Hour with global climate leaders @topnigel @UNenvoyMM @AngelaAchurie & @investinclimate.
Press play to listen to the conversation & learn what we can take away from #COP27.
x.com/i/spaces/1BRJjZadWVpJw
36
11
33
John Doerr retweeted
31 Oct 2022
This might come as a surprise, but protected bike lanes are the best investment of a city’s infrastructure dollars when it comes to tackling the climate crisis.
speedandscale.com/now-is-the…
Here’s why ⬇️ 1/8
12
75
278
John Doerr retweeted
26 Oct 2022
Did you know that while over 50% of Fortune Global 500 companies have a climate commitment, only 5% have a clear net zero goal for 2050 or earlier?
That's less than 30 companies!
If you work at one of these companies YOU can fix this
🧵from #VERGE22 @GreenBiz on what to do ➡️
9
39
102
28 Sep 2022
Entrepreneurs are heroes.
They are provocateurs, risk-takers, innovators.
In Rise of the Rest, @SteveCase paints a hopeful American future, built on the shoulders of founders across the country.
amazon.com/Rise-Rest-Entrepr…
16
25
69
John Doerr retweeted
27 Sep 2022
#RiseOfRestBook is finally here. I hope its stories give you as much hope about America’s future as the entrepreneurs I’ve met in the last 10 years have given me.
Order your copy today: rvltn.vc/ROTR
7
36
179