Hansel Tantohari
AI-Native Strategist & GTM Engineer | Ex-Bain | Yale-NUS & NUS Law hanseltantohari.com
I specialise in 0-1, AI-native GTM - driving from concept to early revenues in new or constantly changing markets where there are no established playbooks.
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Give me an ambiguous market and a goal, and I will figure out how to get there end-to-end: from strategy, to automation, relationship-building, deal structure, and close. I’ve owned 0→1 execution across a variety of highly technical products, going from pre-product to closing multi-year enterprise and SMB contracts, and fundraising over USD4m across the ventures I've worked on.
GTM Index
- HUD (YC W25)JOB
- Founding GTM Eng6M
Founding GTM Engineer
HUD (YC W25)
- HUD provides the marketplace and the tools for individuals and organisations to monetise their data (Private codebases, ML Datasets etc.) to frontier labs and AI-enabled enterprises. Basically Shopify for data! - I lead Vendor Acquisition GTM and Frontier Lab Account Management globally
- THE NEW GTMJOB
- Founder /AI-native GTM & G…8M
Founder /AI-native GTM & Growth Consultant
The New GTM
- Feel free to check out hanseltantohari.com for more! - Built a custom AI Business Development/Lead Generation tool for a Series B Mining Exploration Tech startup to identify “early adopter” companies and individuals within the 1000+ enterprise universe of mining companies. I ran the engagement solo from contract negotiations and customer co-design to product build + integration. - Zo Computer ambassador for Singapore
- SOUTHBRIDGEAIJOB
- Operations Dir4M
Operations Director
SouthbridgeAI
Southbridge is trying to solve the core bottleneck to AI at scale: agentic understanding, unification, and retrieval of semi-structured data. - Negotiated design partnership and crafted service agreement with Southbridge’s first APAC design partner - Led research and implementation of source-available license and terms of service for Southbridge’s alpha launch of its execution runtime and orchestration layer for building and running long-horizon agents
- WRIGHT PARTNERSJOB
- Engagement Mgr/Venture Lead1Y 4M
Engagement Manager/Venture Lead
Wright Partners
- Responsible for end-to-end venture delivery and board-level stakeholder management for the venture studio - Led a team of 4 to launch an AI-powered smart maintenance venture from ideation to first customers and fundraising, securing US$800K seed funding from the venture’s FTSE 100 corporate partner and closing 2 contracts from FMCG and Pharma manufacturers in the Philippines worth US$150K, pre-product - Owned and automated the early commercial engine: opportunity pipeline, target accounts, stakeholder mapping, outbound sequences (LI/email/calls), and sales playbooks for repeatable execution - Led end-to-end venture build of a data marketplace platform for Malaysia's largest Telco Infra…
- BAIN & COMPANYJOB
- Senior Associate Consultant1Y 4M
Senior Associate Consultant
Bain & Company
New Business Building and Ventures Division (Part of Bain Next) - Partnered with a global FTSE 100 engineering firm to build a biofuels venture. I mainly focussed on validating venture desirability assumptions within the sustainable maritime and aviation fuel markets -Co-founded and built a high-tech urban farm venture which received SGD2m seed funding from a leading Asian real-estate developer. While I wore many hats, I largely focussed on validating viability assumptions through financial modelling and customer development Value Creation for existing startups - Built VC partnership network for top-of-funnel deal flow for the company from 0 to 20+ VCs - Co-led a GTM program for Korean…
- GREENFIJOB
- BD Advisor5M
Business Development Advisor
GreenFi
GreenFi GreenFi is an ESG due diligence enhancement and decision automation solution for sustainable financing and supply chain. It turns ESG due diligence from a manual, yet incomplete 1000+ man-hour process into an AI-powered one that takes just minutes - with credible, comprehensive, and explainable results. - Owned and automated APAC GTM Strategy and pipeline from scratch by testing channels (outbound, partnerships, community/investor intros etc.) and refining messaging based on conversion analytics. Tracked and reported pipeline health regularly to executive leadership - Closed pilot contracts with top-tier Indonesian banks totalling S$60K ARR. Managed end-to-end CRM and sales process
- SIMON-KUCHER & PARTNERSJOB
- Consultant1Y 4M
Consultant
Simon-Kucher & Partners
- Delivered top-line recommendations for one of India’s largest quick-service restaurant chains that resulted in 13.3% top-line growth. I also led the design and implementation of A/B tests for 4 recommendations by coordinating with 6 different client departments - Formulated differential pricing strategy by use-case for one of the world’s largest business messaging platforms, which is expected to lead to a 9% increase in revenue
- YALE-NUS COLLEGESCHOOL
- Liberal Arts Double Degree…5Y 11M
Liberal Arts Double Degree Programme with Law, Liberal Arts /Liberal Studies and Law
Yale-NUS College
- NUS FACULTY OF LAWSCHOOL
- Bachelor of Laws - LLB, Law5Y 11M
Bachelor of Laws - LLB, Law
NUS Faculty of Law
- GALIGOJOB
- Co-Founder1Y 9M
Co-Founder
Galigo
- Galigo aimed to build a digital platform that bridges businesses, green innovators, and industry authorities - Raised SGD 250k in a pre-seed SAFE round at a valuation of SGD 3m and recruited talent, growing from 2 founders to a team of 7 - Led the product team from the conceptual stage to an ARR of SGD 90k with anchor clients in the construction association space in Singapore
- YALE UNIVERSITYSCHOOL
- Liberal Arts11M
Liberal Arts
Yale University
- APEX TOKEN FUNDJOB
- Community Mgr6M
Community Manager
Apex Token Fund
- Worked closely with the fund’s founding team to organise 100+ international investors across 19 different countries for the world's first tokenised Fund-Of-Funds throughout the fund-raising and eventual wind-down - Negotiated down the fixed fees from 3m USD to 2m USD on behalf of investors upon the eventual vehicle wind-down due to the investment soft-cap not being met
- RAFFLES INSTITUTIONSCHOOL
- Raffles Institution1Y 11M
Raffles Institution
Raffles Institution
- VICTORIA SCHOOL (SINGAPORE)SCHOOL
- Victoria School (Singapore)3Y 11M
Victoria School (Singapore)
Victoria School (Singapore)
- Job: Wright Partners — Engagement Manager/Venture Lead · 2024-05 – 2025-09 · 1y 4mo — - Responsible for end-to-end venture delivery and board-level stakeholder management for the venture studio - Led a team of 4 to launch an AI-powered smart maintenance venture from ideation to first customers and fundraising, securing US$800K seed funding from the venture’s FTSE 100 corporate partner and closing 2 contracts from FMCG and Pharma manufacturers in the Philippines worth US$150K, pre-product - Owned and automated the early commercial engine: opportunity pipeline, target accounts, stakeholder mapping, outbound sequences (LI/email/calls), and sales playbooks for repeatable execution - Led end-to-end venture build of a data marketplace platform for Malaysia's largest Telco Infra…
- Job: Bain & Company — Senior Associate Consultant · 2023-01 – 2024-05 · 1y 4mo — New Business Building and Ventures Division (Part of Bain Next) - Partnered with a global FTSE 100 engineering firm to build a biofuels venture. I mainly focussed on validating venture desirability assumptions within the sustainable maritime and aviation fuel markets -Co-founded and built a high-tech urban farm venture which received SGD2m seed funding from a leading Asian real-estate developer. While I wore many hats, I largely focussed on validating viability assumptions through financial modelling and customer development Value Creation for existing startups - Built VC partnership network for top-of-funnel deal flow for the company from 0 to 20+ VCs - Co-led a GTM program for Korean…
- Job: GreenFi — Business Development Advisor · 2023-11 – 2024-04 · 5 mo — GreenFi GreenFi is an ESG due diligence enhancement and decision automation solution for sustainable financing and supply chain. It turns ESG due diligence from a manual, yet incomplete 1000+ man-hour process into an AI-powered one that takes just minutes - with credible, comprehensive, and explainable results. - Owned and automated APAC GTM Strategy and pipeline from scratch by testing channels (outbound, partnerships, community/investor intros etc.) and refining messaging based on conversion analytics. Tracked and reported pipeline health regularly to executive leadership - Closed pilot contracts with top-tier Indonesian banks totalling S$60K ARR. Managed end-to-end CRM and sales process
- Job: Simon-Kucher & Partners — Consultant · 2021-09 – 2023-01 · 1y 4mo — - Delivered top-line recommendations for one of India’s largest quick-service restaurant chains that resulted in 13.3% top-line growth. I also led the design and implementation of A/B tests for 4 recommendations by coordinating with 6 different client departments - Formulated differential pricing strategy by use-case for one of the world’s largest business messaging platforms, which is expected to lead to a 9% increase in revenue
- Job: SouthbridgeAI — Operations Director · 2025-09 – 2026-01 · 4 mo — Southbridge is trying to solve the core bottleneck to AI at scale: agentic understanding, unification, and retrieval of semi-structured data. - Negotiated design partnership and crafted service agreement with Southbridge’s first APAC design partner - Led research and implementation of source-available license and terms of service for Southbridge’s alpha launch of its execution runtime and orchestration layer for building and running long-horizon agents
- Job: Apex Token Fund — Community Manager · 2018-01 – 2018-07 · 6 mo — - Worked closely with the fund’s founding team to organise 100+ international investors across 19 different countries for the world's first tokenised Fund-Of-Funds throughout the fund-raising and eventual wind-down - Negotiated down the fixed fees from 3m USD to 2m USD on behalf of investors upon the eventual vehicle wind-down due to the investment soft-cap not being met
- Job: HUD (YC W25) — Founding GTM Engineer (Founding GTM) · 2026-04 – present · 4 mo — - HUD provides the marketplace and the tools for individuals and organisations to monetise their data (Private codebases, ML Datasets etc.) to frontier labs and AI-enabled enterprises. Basically Shopify for data! - I lead Vendor Acquisition GTM and Frontier Lab Account Management globally
- Job: Galigo — Co-Founder · 2019-11 – 2021-08 · 1y 9mo — - Galigo aimed to build a digital platform that bridges businesses, green innovators, and industry authorities - Raised SGD 250k in a pre-seed SAFE round at a valuation of SGD 3m and recruited talent, growing from 2 founders to a team of 7 - Led the product team from the conceptual stage to an ARR of SGD 90k with anchor clients in the construction association space in Singapore
- Job: The New GTM — Founder /AI-native GTM & Growth Consultant · 2026-02 – present · 6 mo — - Feel free to check out hanseltantohari.com for more! - Built a custom AI Business Development/Lead Generation tool for a Series B Mining Exploration Tech startup to identify “early adopter” companies and individuals within the 1000+ enterprise universe of mining companies. I ran the engagement solo from contract negotiations and customer co-design to product build + integration. - Zo Computer ambassador for Singapore
- School: Yale-NUS College — Liberal Arts Double Degree Programme with Law, Liberal Arts /Liberal Studies and Law · 2016 – 2021
- School: Yale University — Liberal Arts · 2020 – 2020
- School: NUS Faculty of Law — Bachelor of Laws - LLB, Law · 2016 – 2021
- School: Raffles Institution · 2012 – 2013
- School: Victoria School (Singapore) · 2008 – 2011
- School: NUS Faculty of Law — Bachelor of Laws - LLB, Law
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