social entrepreneurs latin america x
Bertzman Funds Zilper Trenchless
Zilper's versatile and cost-effective trenchless technology is used to reduce the cost of critical underground pipeline infrastructure.
Dec 02
When ‘Free’ Doesn’t Sell
The search and discovery of truth as to why only a limited number of families were reached with the foundation’s dependence on donations and why many recipients of the free devices neglected to use them.
Oct 11
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