What clients say

My latest clients, in their own words.

1:17

Video

Ron Lissak

Catapult Advisors, an independent investment bank in San Francisco

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0:52

Video

Kat Brown

Founder, Impactum, a social and environmental impact consultancy

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Video

Sleem Hasan

Founder and CEO, Privity FZ LLE

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My latest Upwork reviews

Nassiripour Law Firm, an immigration law firm in Irvine, California

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Aloha Bookkeeping Pros, Hawaii. The contract was for WordPress; I built her site in my own code instead, with an editor she uses for her own changes.

Upwork review from Aloha Bookkeeping Pros

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Cornerstone, a remodeling firm in Las Vegas

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By the way, I have also been to the Parliament of Poland in Warsaw, on fintech and technology ties between Malaysia and Poland. Here is a bit about me.

About me

Client reviewsCleven & Co.™

About me

A bit about me, beyond websites.

I am Cleven Chang. I have been a startup founder for ten years and I am a full stack engineer: I design, code and ship every site myself, with no account manager in between. I co-founded AssetCut, in asset tokenization, and AgentVocal, in AI voice agents, so I work at the forefront of AI, fintech and tokenization every day. Cleven & Co. is my studio, run by KEEN CORP LTD, a company registered in England and Wales.

Read the Government of Poland’s article on the FinTech Forum

Cleven Chang in the chamber of the Parliament of Poland, Warsaw — At the Parliament of Poland in Warsaw, on a visit about fintech and technology ties between Malaysia and Poland.

Cleven Chang with the delegation at the Parliament of Poland — With the delegation at the Parliament of Poland.

Cleven Chang at the second Poland and Malaysia FinTech Forum, Kuala Lumpur

The Poland and Malaysia FinTech Forum

On 4 November 2024 the Embassy of Poland in Malaysia held the second Poland and Malaysia FinTech Forum in Kuala Lumpur, with the Asia School of Business. AssetCut, the asset tokenization company I co-founded, presented live. The Government of Poland published an article about the forum on its own website.

Read the Government of Poland’s article gov.pl, Poland in Malaysia

On the record

The AssetCut founders slide on screen during the second Poland and Malaysia FinTech Forum, Kuala Lumpur — AssetCut presenting live at the second Poland and Malaysia FinTech Forum in Kuala Lumpur, with our founders slide on screen.

Cleven Chang with Dominik Tarczyński, Member of the European Parliament — With Dominik Tarczyński, Member of the European Parliament.

Cleven Chang on a video call about real world asset tokenization with NEOM Investment Fund — On a call about real world asset tokenization with Karim Jallad on LinkedIn (opens in a new tab), Investment Director at NEOM Investment Fund.

About meCleven & Co.™