Grünecker "is a permanent fixture" in trademark, design and competition law, praises the Juve editorial team in the new edition of the handbook. The team processes a "high volume of cases", but also has a strong prosecution practice. Juve rates the number of international companies among Grünecker’s clients as “impressive”. Grünecker's practice also appeals to German midsized businesses and start-ups.

Competitors and clients often recommend Prof. Dr. Maximilian Kinkeldey ("extremely pleasant and fair opponent", "very quick to react", "highly specialized and competent, super!"), Dr. Nicolás Schmitz ("expert and experienced"), Dr. Holger Gauss ("reliable and pragmatic") and Martin Aufenanger ("very good work").

Among the clients known to Juve from the market are Capri Sun in proceedings concerning 3D packaging, Schwan Stabilo in numerous lawsuits concerning counterfeit pens, a luxury furniture manufacturer in design law proceedings against a competitor, Hermès in trademark and competition law proceedings as well as Laverana with comprehensive counsel on trademark law and domains. Juve mentions other Grünecker clients in trademark and unfair competition law,  including Facebook, Galderma, Nintendo, Sony Music, Xerox and Lyft.