Holland Code and RIASEC, explained

RIASEC is a model of vocational interests set out by the psychologist John Holland. It sorts the things people like doing into six types, and describes work environments using the same six. The idea underneath it is simple and has held up well: people tend to be more satisfied in environments that match their interests.

Your Holland Code is usually the top three types in order — RIA, SEC and so on. Three rather than one, because almost nobody is a pure type, and the combination carries more information than the winner alone.

Realistic — working with things: tools, machines, materials, physical systems. Often called the “doers”.
Investigative — working with ideas and evidence: analysing, researching, figuring out why.
Artistic — working with form and expression: designing, writing, performing, making.
Social — working with people: teaching, caring, guiding, helping.
Enterprising — working through people toward an outcome: persuading, leading, selling, organising.
Conventional — working with order and detail: structuring, recording, checking, administering.

The six are usually drawn as a hexagon, and the position matters: adjacent types have more in common than opposite ones. Realistic and Investigative sit next to each other; Realistic and Social sit opposite. A code combining opposite types is not wrong, but it usually describes someone whose work and interests pull in two directions.

This is the part most often lost, and it is worth stating plainly: RIASEC asks what you would enjoy, not what you would be good at. A high Artistic score is not a statement that you can draw. Holland's model is about fit and satisfaction, not competence or prediction.

That is also why it survives scrutiny better than most career instruments — it makes a modest claim and mostly keeps to it. The distinction is the same one set out in what a career aptitude test actually measures.

The US Department of Labor publishes the O*NET Interest Profiler, which is a genuine RIASEC instrument, free, with no account required, and directly linked to occupational data. If you specifically want your Holland Code, that is the most credible free route and it is better than most paid alternatives.

Be wary of ten-question “Holland Code tests” that return a three-letter code instantly. RIASEC is not complicated, but a handful of items cannot separate six types reliably.

This site works in four families rather than six types, because four is what eighteen questions can separate honestly. The overlap is close, and worth knowing if you already have a code:

Realistic maps largely onto Concourse A, Systems & Structure — the Builder, the Operator, the Fixer. Investigative maps onto Concourse C, Ideas & Analysis. Artistic maps onto Concourse D, Making & Expression. Social maps onto Concourse B, People & Care. Enterprising and Conventional split across the board rather than sitting in one place — Enterprising leans B and C, Conventional leans A and C — which is the honest answer rather than a forced fit.

If you have a Holland Code already, the eighteen questions here will usually land you somewhere consistent with it, and will add the two modifiers RIASEC does not cover: how much structure you want, and how front-facing you want to be.