Rigorous tools for calculated decision making.

Jonsson Associates builds specialized web software for finance, project management, and data visualization. Four products. One standard of precision.

SaaS · Finance

Financial Forecaster

Lightweight three-statement forecasting with runway visibility — no full FP&A stack required.

finmod.jonssonassociates.com

DETAILS →OPEN APP ↗
Project Management · Scheduling

PERT

Multi-user PERT scheduling with optimistic / realistic / pessimistic estimates and an automatic critical path.

pert.jonssonassociates.com

DETAILS →OPEN APP ↗
Genealogy · Visualization

FamViz

GEDCOM-based family-tree merge and visualization, fully in-browser.

famviz.jonssonassociates.com

DETAILS →OPEN APP ↗
Coming Soon

Exercise Widgets

Small, focused exercise widgets — in development.

Coming soon

Small teams move faster when they have better tools.

Jonsson Associates was founded on the belief that general-purpose software often fails the specialists. We build the second-order tools — the ones you reach for when the spreadsheet isn't enough.

Our products are built with a utility-first philosophy: zero bloat, high keyboard accessibility, and robust data portability.

About the firm
Property registry
jonssonassociates.comMarketing siteLIVE
finmod.jonssonassociates.comForecasterLIVE
pert.jonssonassociates.comPERTLIVE
famviz.jonssonassociates.comFamVizLIVE
/widgetsExercise WidgetsSOON