Time is my most valuable commodity. Does this sound like you? I have been working with clients since 2008 to review and assess business processes, document findings, and develop practical solutions for improving your data management and use. Book a call below. More at Services.
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Testimonials
Testimonials
(traduit du français) "DataGrow is an exceptional company. Nico has been supporting me with data analysis for over a year; his recommendations have enabled me to grow my business and improve my profitability. He demonstrates thoughtfulness and creativity, while also possessing in-depth expertise in data usage, visualization, and communication of key information. For a small business operating in France, having access to high-quality data analysis support is crucial to ensuring the long-term success of my business. I continue to use DataGrow's services and intend to use them for all my future data analysis needs." [Maison Gally Owner - Small Business] - 2026
"Excellent experience with Nicholas as he helped us create an excel file business budget that we can use and replicate as needed. Extremely thorough and easy to work with. Def will work with him again." [Upwork Client - Small Business] - 2025
"Niko is fast, efficient, and responsive. He understands business context including data limitations and challenges but can work within these boundaries to produce spectacular visualizations. He can also build robust data systems that allow others with less expertise to maintain and use the systems long after Niko's finished." Shawn Peabody, Environmental Incentives. [worked on several contracts in the data realm, mostly large offices with varied staff] - 2024
"Nicholas helped our team understand a complex financial spreadsheet and recommended the sheet, formulas, sources, and process improvements. He's familiar with data analysis and automating spreadsheets with quality sources." [Upwork Client - Small Business] - 2024
"We received excellent quality work from you. (niko)." Mohit Holmesheoran. [performed tasks including writing R code and Tableau dashboard development, worked directly for data team] - 2022
"Niko offered high quality support to visualize a complex set of data and relationships!" Iair Cohenca, Environmental Incentives. [analyzed a complex data set using Tableau, R, and Google Sheets, liaised with Iair, who managed the client] - 2022
Some concrete examples below
DataGrow - about founder
DataGrow - about founder
The DataGrow website went live in 2017, and was registered in USA in August 2019 by Nicholas Welch (LinkedIn) , a senior data engineer and strategy consultant with over a decade of international experience. Nicholas launched DataGrow (US as mentioned, France April 2026) to assist small businesses in the data realm: from fixing disconnected spreadsheets, to website or social media analytics, to training staff on AI or building AI agents.
Nicholas has been a professional baker and cook, mover, musician, epidemiologist, farmer, and compost expert. He has lived in the Americas, Asia, Africa and Europe. He brings that multi-sectoral approach from years across professions to help global clients fix data problems.
DataGrow - Practical Solutions for What Isn't Working | Data & AI
- Site active since June 2017, updated in October 2026
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