Exhibit 23.1
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Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in this Registration Statement on Form F-1 filed pursuant to Rule 462(b) under the Securities Act of 1933, as amended, of our report dated July 25, 2017, relating to the financial statements of Ablynx NV, which report expresses an unqualified opinion and includes an explanatory paragraph relating to the restatement discussed in Note 28, appearing in the Prospectus included in the Registration Statement on Form F-1 (No. 333-220763) and to the reference to us under the heading “Experts” in the Prospectus.
Zaventem, 25 October 2017
/s/ Nico Houthaeve
DELOITTE Bedrijfsrevisoren / Réviseurs d’Entreprises
BV o.v.v.e. CVBA / SC s.f.d. SCRL
Represented by Nico Houthaeve
Deloitte Bedrijfsrevisoren / Réviseurs d’Entreprises
Burgerlijke vennootschap onder de vorm van een coöperatieve vennootschap met beperkte aansprakelijkheid /
Société civile sous forme d’une société coopérative à responsabilité limitée
Registered Office: Gateway Building, Luchthaven Nationaal, 1J, Zaventem, 1930, Belgium
VAT BE 0429.053.863 - RPR Brussel/RPM Bruxelles - IBAN BE 17 2300 0465 6121 - BIC GEBABEBB
Member of Deloitte Touche Tohmatsu Limited