Emdros is a proven technology
I have sold an Emdros license to Logos Bible Software. Logos is the world's leading vendor of Bible Software, and Emdros powers the Syntax Search in their Libronix product, as well as a "grammatical sketch", similar to Adam Kilgariff's Sketch Engine, but for the Biblical original languages.
Emdros is being used with great success in a number of places, mostly academic settings with linguistic database needs.
Among them is a large-scale Hebrew database project at the Vrije Universiteit Amsterdam. We have imported a 420,000-word corpus of syntactic analyses with 1.4 million syntactic objects, and Emdros has proven to be fast and reliable.
Linguists at one of the Universities in Toulouse are using Emdros in their research. Emdros powers the "Keskya" concordancer, developed at IRIT, Toulouse, France, which helps the linguists conduct their corpus-based research.
The Thai Treebank used to have an online, searcheable interface powered by Emdros. It appears to be offline for now, however.
The Royal Netherlands Academy of Arts and Sciences (KNAW) have a subdivision called "DANS", which stands for "Data Archiving and Networked Services". The DANS have selected Emdros to be the underlying database technology for at least two projects aimed at making the Dutch computational linguistic research legacy available and archivable online. One of them can be seen here.
What users say
"At long last, a query interface that one does not have to fight with! Emdros allows the exegete to formulate queries the way he thinks about the text. It's natural and intuitive."
--Prof. Kirk Lowery, Director, Westminster Hebrew Institute
"We use Emdros for complex consistency checks on the data we produce. It allows us to translate involved linguistic constructions to clear and practical queries. The EMdF model makes it possible to address both the linguistic and the philological issues of classical corpora."
--Constantijn Sikkel, Werkgroep Informatica, Faculty of Theology, Vrije Universiteit Amsterdam
"Your level of support for Emdros is really outstanding, and an important reason for why I think that using and building on Emdros is a Good Idea."
--Michael Piotrowski, M.A., PhD candidate, University of Magdeburg
"I particularly like the ease with which I can write Emdros-based applications, thanks to the powerful API's, the support for various programming and scripting languages, and the excellent documentation. Try it, and you'll see what I mean."
--Hendrik Jan Bosman, PhD candidate, Faculty of Theology, Vrije Universiteit Amsterdam