In Śvetāmbara Sthānakvāsī tradition, there are many gacchas/saṅghs/lineages, but no fixed, universally accepted list of “major gacchas” like in Mūrtipūjak Derāvāsī tradition.

Commonly known Sthānakvāsī lineages include (for example):

• Āgrā Saṅgh (Āgrā‑vālī Sthānakvāsī)
• Vardhamān Śramaṇ Saṅgh
• Śramaṇ Saṅgh / Mahāsābhā type lineages in some regions
• Various regional saṅghs in Gujarat, Rajasthan, Punjab, Haryana, Delhi, etc.

But:

• Different cities and countries recognize different saṅghs as “major”.
• Some groups are independent or recently formed, so any fixed number (like “5 main gacchas”) would not be historically accurate for the whole Sthānakvāsī sampradāy.

So, from a traditional Jain dharma point of view: > Sthānakvāsī are a sub‑sect of Śvetāmbara Jains with several gacchas/saṅghs, but there is no single authoritative count of “major gacchas” accepted everywhere.

If you have a specific city or country in mind (e.g. “in Mumbai Sthānakvāsī” or “in North America Sthānakvāsī”), you would have to ask that local saṅgh for their recognized list.