VOLT DATA LAB is a data-driven journalism agency, providing data-driven investigations, research, news stories, visualizations, interactives, on-demand projects and training to media companies and NGOs. We also publish our own stories in partnership with major and small-sized news organizations.

What we do

Here at VOLT we do a lot of things with data. From news agency and in-depth reporting to training courses and research reports, we are building a new kind of journalism services provider.


A Few of Our Projects

News Atlas in Brazil

Groundbreaking research project, in partnership with the Institute for the Development of Journalism (Projor), to map all journalistic ventures in Brazil, with focus on local journalism. 

The research, the first of its kind in Brazil, aims at providing information and statistical insights for academics, entrepreneurs and policy makers, in order to promote the development of a better environment for small and mid-sized news organizations in the country.  

Landing page in English.

Investigating Wikipedia


Special investigation for the Brazilian magazine piauí, diving into changes made in Wikipedia to polish the image of politics and remove references on corruption and questionable behavior. Volt did the research, wrote the story and develop the visuals.

In English (adapted in Google Docs). See original publication here.

How Brazil's economy is lagging behind

Volt produced a special report with our partners at fact-checking website Aos Fatos about the state of the economy in Brazil. We did the graphics, the research, the design and the text. 

NYC Landscape - a guide to media companies

This is an on-demand project made for the Tow-Knight Center for Entrepreneurial Journalism, in which we researched, developed the methodology and created a small interactive database about media companies based in New York City.

The project is still in beta mode, but all data and code are already available. 

In English.

Mapping local journalism

Volt was hired by the NGO Observatório de Favelas, which assists poor communities in Rio de Janeiro, to implement a simple publishing platform for their project to map community journalism in Brazil. 

We implemented the code and visuals behind the map, while savvy and bright young journalists did the content.  

This project is available only in Portuguese.

Database about layoffs of journalists in Brazil

In 2015, Volt started to track, compile and visualize the layoffs of Brazilian journalists. Before this project, there was no measurement or data about this, and our project became a big reference in this segment.

Passaralhos is the Portuguese jargon used to describe layoffs of journalists. 

For now, this project is available only in Portuguese.

Prego! Find the tools to work with data

Prego! is a quick reference guide compiling numerous tools to manipulate, analyze, visualize and read data.

It is meant to be a simple, easy website where people come to look for resources and tools to create data journalism-related or other kind of projects.

In English.

This is a new approach in the media market. Beyond the quality of their work, Volt relies on a high level of technical expertise and journalism standards. - MIGUEL PAZ, Director, Poderopedia


Volt has made Aos Fatos a more innovative, accessible project. Its contribution to the growth of our platform is extremely important. - TAI NALON, Director, Aos Fatos

"The great thing about working with Volt is that they take the process of developing data visualizations— which can be complex, costly, slow and exhausting—and make it efficient, cost-effective, quick and interesting. We found Volt to be a smart partner to select for efficient, reasonably-priced, high-quality work." - JEREMY CAPLAN, Director, Tow-Knight Center for Entrepreneurial Journalism

Who we are

VOLT DATA LAB was created by Brazilian journalist Sérgio Spagnuolo in late 2014, and it started as a blog, but later grew up to become an independent, data-driven news agency.

Nieman Lab published full a profile about us, check it out.

We are currently based in Sao Paulo, Brazil, but we do journalism anywhere. You can reach Sérgio at Twitter and also check his LinkedIn profile .

You can reach us at info [at] voltdata.info.

Check our blog in Medium for updates about projects, data journalism and tools.

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