Backed by someone who actually builds and sold startups

Battlefield Capital is my investment vehicle, where I hold equity as an advisor and board member in early-stage startups. Through this role, I help founders become strategically prepared to face challenges and scale their companies. I bring a founder’s mindset to the boardroom, driving product clarity, go-to-market precision, and execution that actually delivers results.

Joaquim Costa


Former Navy. Serial Entrepreneur. 3 exits.

I’ve built and sold startups, shipped 14+ products, and backed early-stage ventures across Europe, States and LatAm.
Through Battlefield Capital, I advise founders as a board member, helping them move from concept to traction with ruthless clarity and focus. I don’t do theory. I build, scale, and back those who execute.

My LinkedIn

We measure outcomes, not vanity metrics

13
startups invested
3
Exits
1
year

Battlefield Impact

$70M+
revenue generated across
portfolio and in-house ventures
$450k+
smart money invested
and hands-on execution
98%
founders who’d go to
war with us again

What Founders Say

"Joaquim and Battlefield helped KuantoKusta develop two new products in record time, with exceptional quality and massive market value. Their hands-on execution and product expertise turned our vision into reality faster than we thought possible"

Paulo Pimenta

Founder & CEO at KuantoKusta

"Working with Joaquim and Battlefield as investor was the turning point for us. They helped us sharpen our vision, cut through noise, and execute with military-grade discipline. Thanks to their guidance, we went from a messy concept to a scalable AI-driven immigration assistant that users actually trust."

Wilson Bicalho

Founder & CEO at Nextborder

“Savearth went from idea-stage uncertainty to a real impact-driven startup because of Joaquim and Battlefield.
Their no-bullshit feedback and hands-on support gave us the clarity to refine our AI product and the confidence to push forward with growth.”

João Machado

Founder & CEO at Savearth

“Kapisci was just a name when we met Joaquim. With Battlefield’s investment and support, we found our voice, structured our product strategy, and built something real. Joaquim’s ability to see through fluff and push execution is what turned us into a functioning company.”

Joaquim Nascimento

Founder & CEO at Kapisci

“Spriva was moving in circles until Joaquim and Battlefield stepped in. They pushed us to refine our positioning, simplify our product, and execute with speed. Their tough love and battlefield-tested frameworks gave us the clarity we were missing."

João Moreira

Founder & CEO at Spriva

“Before Joaquim, Roxconnect lacked direction. Battlefield came in, stripped away the noise, and forced us to focus on a clear ICP and product wedge. That shift is what unlocked our traction and growth.”

Alexandre Morgado

Founder & CEO at Roxconnect

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