The Latvian Council of Science manages research programmes. Most national funding is based on ESIF (ERDF), see also there.
National Funding Opportunities in Latvia
Language Technology is a priority, next call for proposals in January 2017. Most of national projects are financed by ESIF, hence national funding is not extra mentioned.
ESIF Funding Opportunities in Latvia
EUREKA: Yes. Funding available for all beneficiaries, upper yearly limit.
Eurostars: Funding available for all beneficiaries, upper yearly limit.
Eureka/Eurostars Opportunities in Latvia