With limited information coming from official sources, many people — particularly in tech — have been keeping track of the Russian invasion of Ukraine over Twitter.

Ukraine is home to thousands of startups and is a developer hub, and Ukrainian founders have had success overseas including with Grammarly and Revolut. Many startups with teams in the country are now trying to evacuate their staff. 

Sifted has put together a list of Ukrainian startup and tech leaders who’ve been sharing their views and experiences on social media, from inside the country or further afield.

Here’s how Ukraine’s global tech community has been responding to the Russian invasion.

Oleksandra Zubal

Handle: @OleksandraZubal

Who? The cofounder of Lviv-based business management platform MyDone.

My daughter and I surviving the night in Ukraine. We are real people at war with crazy dictator and we need the world’s support right now#StandWithUkraine pic.twitter.com/FvdmY4GACj

— Oleksandra Zubal (@OleksandraZubal) February 24, 2022

Mike Sapiton

Handle: @sapitonmix

Who? A tech journalist from Kyiv, working as Forbes Ukrain
e’s deputy editor-in-chief. 

Leaving my dear city, my Kyiv. Will I be back? I don’t know and all my life is now contained to this backpack.

Russia will pay for everything pic.twitter.com/7ESbk5whYV

— Mike Sapiton 🇺🇦 (@sapitonmix) February 25, 2022

Natalia Tepluhina

Handle: @N_Tepluhina

Who: A Ukrainian-born engineer at Y Combinator-alumni SaaS startup GitLab — which IPO’d in the US last October at an $11bn valuation — now living in Amsterdam. 

My family is on the western border of Ukraine and my mom just called saying they hear explosions. I don't know what to say else.

— Natalia Tepluhina 🇺🇦 (@N_Tepluhina) February 24, 2022

Dmytro Voloshyn

Handle: @dmytro_voloshyn

Who? The CTO and cofounder of Ukrainian edtech Preply. The startup raised its last round in March 2021, taking its total funding to $55.4m, and making it one of the country’s most valuable private, VC-backed tech companies.

Injustice anywhere is a threat to justice everywhere. We are caught in an inescapable network of mutuality, tied in a single garment of destiny. Whatever affects one directly affects all indirectly – MLK #StandWithUkraine #SanctionRussiaNow

— Dmytro (@dmytro_voloshyn) February 24, 2022

Oleksandr Kosovan

Handle: @kosovan

Who? The Kyiv-based founder and CEO of MacBook-cleaning SaaS MacPaw. He also cofounded multi-stage Ukrainian VC Smrk.

russia has started an invasion into our beloved country, Ukraine.
MacPaw is ready to face this challenge and continue our operations to serve our customers worldwide. We stay strong and #StandWithUkraine https://t.co/W8qa8ujiPC

— kosovan (@kosovan) February 24, 2022

Mykhailo Fedorov

Handle: @FedorovMykhailo

Who? The vice prime minister and minister of digital transformation of Ukraine. He’s been a vocal supporter of education as an important tool for raising the next generation of tech talent.

It was a tough night in terms of cybersecurity of Ukraine. We've been protecting our cyberspace all night. Ukraine is experienced and continues to counter non-stop attacks on main informational sources. As of now everything operates stable. Keep calm and don't panic.

— Mykhailo Fedorov (@FedorovMykhailo) February 24, 2022

Dmitriy Zaporozhets

Handle: @dzaporozhets

Who? The cofounder of Ukrainian-founded GitLab. 

Its almost 18 hours of war. Ukraine is strong. Support Ukraine.

— DZ (@dzaporozhets) February 24, 2022

Sergey Petrenko

Handle: @gray_ru

Who? A serial entrepreneur who founded Ukrainian coworking space Terminal 42 and hosts tech podcast Radio-T, based in Odessa.

Taras Mishchenko

Handle: @tarasmi

Who? Founder and editor-in-chief at Ukrainian-language online tech publication Mezha Media, based in Kyiv.

Many Russians thought that they are so essential for the rest of the world, that an attack on Ukraine wouldn't be important. But now we see that Russia will be isolated.

— Тарас (@tarasmi) February 25, 2022

Pavlo Krasnomovets

Handle: @krasnomovets

Who? A Kyiv-based editor at Forbes Ukraine, covering all things tech and startup in the country.

Anton Melnyk

Handle: @antonmelnyk

Who? An adviser at the Ministry of Digital Transformation in Ukraine, who’s previously held roles at Kyiv-based startup incubator UUI Ventures and the Ukrainian startup fund. 

Oleg Kurchenko

Handle: @Oleg__Kurchenko

Who? A Ukrainian-born entrepreneur and investor, who founded Kyiv-based IT company YouDigital and digital asset exchange Binaryx.

🇺🇦 Ukrainian Blockchain community started a charity fundraising initiative to help those in need, to #StandForUkraine

In this challenging time for our state, we try to help by bringing Blockchain technologies to the aid of Ukraine.

Learn how you can help #Ukraine ⤵️

1/6

— Oleg Kurchenko (🇺🇦, 🇺🇦) (@Oleg__Kurchenko) February 25, 2022

Artur Orujaliev

Handle: @arturclancy

Who? A Kyiv-based entrepreneur who founded remote jobs board Reworker.net and online blockchain and crypto media publication Biteside.

Andrii Degeler

Handle: @adegeler

Who? A Ukrainian tech journalist living in Groningen, who ventured back to his family home in Kharkiv in eastern Ukraine to help his mum move further west.

I'd walked around the city of Khmelnytskyi this morning. There were a few lines to the ATMs and some stores; but by far the longest queue I saw was to a military enlistment office.

Glory to Ukraine. Glory to the heroes. 🇺🇦 pic.twitter.com/lvI4tj4tTY

— Andrii Degeler (@adegeler) February 25, 2022

Denys Zhadanov

Handle: @DenZhadanov

Who? A board member of Ukrainian-founded bootstrapped SaaS startup Readdle, based in San Francisco, London and Odessa — in the south of Ukraine.

Our country has 1200 years of history, culture and language. We chose democracy, even though it’s fragile. My heart goes to all Ukrainians now. We are one. pic.twitter.com/QA5hAvnYys

— 🚀Denys Zhadanov (@DenZhadanov) February 24, 2022

Max Lytvyn

Handle: @max_lytvyn

Who? The cofounder and head of revenue at $13bn Ukrainian-founded SaaS startup Grammarly. The company is now based in San Francisco but still has an office in Kyiv.

Vlad Yatsenko

Handle: @vyatsenko

Who? The CTO and cofounder of UK fintech Revolut, which hit a valuation of $33bn over the summer after an $800m raise from SoftBank and Tiger Global.

I hope, people of Russia will finally realise what a monster and a liar their president Putin is! The stories he's telling you are similar to what Hitler was telling Germans almost 100 year ago. There're a lot of great Russians, Putin is not one of them.

Ukraine will be free!

— Vlad Yatsenko ☮️ 🇺🇦 (@vyatsenko) February 24, 2022

Illia Polosukhin

Handle: @ilblackdragon

Who? The Ukrainian-born cofounder of US blockchain platform Near Protocol that’s gotten backing from US VC Andreessen Horowitz. Polosukhin studied in Kharkiv before moving to San Francisco in 2008.

You can support Ukraine and it's defenders via @BackAndAlive – https://t.co/rgRefXmDd4

Glory to Ukraine!

— Illia Polosukhin (root.near) (🇺🇦, 🇺🇦) (@ilblackdragon) February 24, 2022

Kai Nicol-Schwarz is a reporter at Sifted. He covers healthtech and community journalism, and tweets from @NicolSchwarzK