Exhibit 21.1

Subsidiaries of the Registrant
Subsidiary	Jurisdiction of Incorporation or Organization
Analytica LA-SER International, Inc.	Delaware
ANSER Europe Limited	United Kingdom
AUTHOR! et al, B.V.	Netherlands
BaseCase, Inc.	Delaware
BioMedCom Consultants, Inc.	Canada
Certara Australia Pty Ltd	Australia
Certara Canada Corporation	Canada
Certara Coöperatief U.A.	Netherlands
Certara France S.a.r.l.	France
Certara Germany GmbH	Germany
Certara G.K.	Japan
Certara Holdco, Inc.	Delaware
Certara Holding, Inc.	Delaware
Certara Holdings, Inc.	Delaware
Certara Intermediate, Inc.	Delaware
Certara Italy S.r.l.	Italy

Exhibit 21.1

Certara, L.P.	Delaware
Certara, L.P. - Sucursal em Portugal	Portugal
Certara Netherlands B.V.	Netherlands
Certara Philippines Inc.	Philippines
Certara S.a.r.l.	Luxembourg
Certara (Shanghai) Pharmaceutical Consulting Co., Ltd.	China
Certara Spain, S.L.	Spain
Certara Software India Private Limited	India
Certara UK Holdings, Ltd.	United Kingdom
Certara UK Limited	United Kingdom
Certara USA, Inc.	Delaware
Insight Medical Writing Limited	United Kingdom
Insight PV & Consulting GmbH	Germany
Instytut ARCANA sp. z o. o.	Poland
Integrated Nonclinical Development Solutions, Inc.	Michigan
La-Ser Europe Limited	United Kingdom
MBDD UK, LLC	Delaware

Exhibit 21.1

MBDD US, L.L.C.	Delaware
Pinnacle 21, LLC	Delaware
Pinnacle 21, Japan GK	Japan
Quantitative Solutions, Inc.	California
Quantitative Solutions LLC	Delaware
Quantitative Solutions L.P.	California
Synchrogenix Europe Limited	United Kingdom
Synchrogenix Information Strategies, LLC	Delaware
Tripos Investments, L.L.C.	Delaware
Vyasa Analytics, LLC	Delaware