Where does Ernest Sim work?

Ernest Sim is Founder of Atlas and Founder at Grain.

What companies did Ernest Sim found?

Ernest Sim founded Atlas, Grain.

Where did Ernest Sim go to school?

Ernest Sim studied at Y Combinator (Making something people want); Ngee Ann Polytechnic (Diploma, Information Technology); Anglo-Chinese School (Barker Road).

Ernest Sim

Founder

Founder at Atlas · Founder at Grain

Singapore

FoundedAtlas · YC Grain

Find your path to Ernest

744 people in our graph share verified history with Ernest — schools, employers, funds. One of them is your warm intro.

Garry TanunlockedErnest: together at Y Combinator (2021)

×10Ernest: together at Y Combinator

Ernest: together at Ngee Ann Polytechnic

About

Ernest Sim is co-founder of Atlas and previously co-founded Grain, a Series B-backed online restaurant based in Singapore. He has focused on food and beverage technology ventures.

Founder at Atlas YC S21

Intro paths

Ernest went through Y Combinator (Summer 2021) — any YC alum in your network can reach them through the YC community.

Their group partner at YC was Gustaf Alstromer — the partner who ran Atlas's batch and knows the company first-hand. YC profile ↗

→

In turn, Ernest can intro founders to Atlas's investors below.

Atlas's investors · 6

AccelPalo Alto · $1.6M – $70M checks · since 2026 BlackRockWilmington · since 2026 LocalGlobeLondon NorthzoneLondon · $1M – $50M checks Village GlobalCovina · $100K – $500K checks Y CombinatorSan Francisco · $500K checks · since 2021

Co-founders at Atlas

Yi Sung (Sung) YongFounder

Shawn LiamFounder

Surendhar Reddy ‎Founder

Founder at Grain

Intro paths

→

In turn, Ernest can intro founders to Grain's investors below.

Grain's investors · 2

500 GlobalSan Francisco · $150K checks · since 2016 Cento VenturesSingapore · $580K – $21M checks

Experience

AtlasCo-Founder, CTOcurrent2021 — presentSingapore
GrainCo-Founder, CTOcurrent2013 — presentSingapore
MethodDirector, Technology2013 — 2015Singapore
ActatlysCo-Founder, CTO2011 — 2013Singapore
FreelanceSoftware Developer2010 — 2013Singapore
Singapore Armed Forces (SAF)Commando Medic2008 — 2010Singapore
National Research Foundation (PMO)Admin Assistant / IT Support2008

Skills & more

Web Development26Software Development20jQuery13MySQL10Ruby on Rails9Web Applications8Programming10Start-ups9PHP5Photoshop6JavaScript8Advanced CSS3

+5 more

RubyMobile ApplicationsHTMLLeadershipCSS

Languages Chinese · English

Enterprise Design Thinking Practitioner — IBM

From Ernest's professional profile.

Frequently asked questions

Who is Ernest Sim?: Ernest Sim is co-founder of Atlas and previously co-founded Grain, a Series B-backed online restaurant based in Singapore. He has focused on food and beverage technology ventures.
Where does Ernest Sim work?: Ernest Sim is Founder of Atlas and Founder at Grain.
What companies did Ernest Sim found?: Ernest Sim founded Atlas, Grain.
Where did Ernest Sim go to school?: Ernest Sim studied at Y Combinator (Making something people want); Ngee Ann Polytechnic (Diploma, Information Technology); Anglo-Chinese School (Barker Road).

Founder mafias

Y Combinator mafia10,230

Also came through, then founded or led a company.

Sam AltmanPresidentFounded Tools for Humanity +3 Garry TanPresident & CEOFounded Y Combinator +1 Jessica LivingstonCo-founderFounded Y Combinator Alexis OhanianPartnerFounded Reddit Fred EhrsamYC Summer 2012Founded Nudge +1 Matt HuangYC Winter 2011Founded Paradigm +1

+ 10,223 more

Ngee Ann Polytechnic mafia7

Also came through, then founded or led a company.

Siu Rui QuekDiploma in Business StudiesFounded Carousell +1 Marcus TanFounded Carousell +1 Stan ChangDiploma in Multimedia ComputingFounded Taskade Alvin YapDipFounded Laku6 Kazel Koh En YangDiploma of Information TechnologyFounded Collar Stanley ChiaDiploma in AccountancyFounded Cialfo

Atlas mafia2

Also came through, then founded or led a company.

Dmitry StarodubtsevAngel InvestorFounded Creopop +2

Same school

Also attended Y Combinator2,000

Tarek MansourCo-founder & CEO of Kalshi Suhail DoshiFounder of Mixpanel; founder of Particle Subomi OluwalanaCo-founder & CEO of Convoy Arhaan A.Deeptech Fellow at Clear Ventures Collin WallaceGeneral Partner at Lobby Capital Victor SantosVictor Scout at One Way Ventures

+ 1,994 more

Also attended Ngee Ann Polytechnic31

Dallies LimInvestor Relations Associate at Burda Principal Investments Natalie NgInvestor at TNBAura John TayDirector of Partnerships and Strategy at Tin Men Capital Johny TjhengDirector at Artesian Sean KhuaGeneral Counsel at Vickers Venture Partners Kellie ChanAssistant Director at SGInnovate

+ 25 more

Also attended Anglo-Chinese School (Barker Road)5

Sean KhuaGeneral Counsel at Vickers Venture Partners Hsien-Hui TongExecutive Director, Investments at SGInnovate Paul OngPartner at InnoVen Capital Vishal HarnalGlobal Managing Partner; Managing Partner, Southeast Asia at 500 Startups Vietnam Arushi JindalInvestor at Together Fund

Also attended Catholic High School 公教中学2

Jden GohSoftware Engineer at Openspace Ventures Goh Chee KiongCEO of CHARGE+ at Charge+

Shared employers

+ 63 more

Find your path to Ernest

About

Founder at AtlasYC S21

Intro paths

Atlas's investors · 6

Co-founders at Atlas

Founder at Grain

Intro paths

Grain's investors · 2

Experience

Skills & more

Frequently asked questions

Founder mafias

Y Combinator mafia10,230

Ngee Ann Polytechnic mafia7

Atlas mafia2

Same school

Also attended Y Combinator2,000

Also attended Ngee Ann Polytechnic31

Also attended Anglo-Chinese School (Barker Road)5

Also attended Catholic High School 公教中学2

Shared employers

Also worked at Atlas3

Also worked at Grain2

Also worked at Singapore Armed Forces (SAF)69

Founder at Atlas YC S21