Beteiligungen mit einem Kapitalanteil von mindestens 20 Prozent:
| Name der Gesellschaft | Sitz | Kapitalanteil | ||||
| ABC Beteiligungen AG | Heidelberg | 100% | ||||
| Heidelberger Beteiligungsholding AG | Heidelberg | 89% | ||||
| AEE Ahaus-Enscheder AG | Ahaus | 88% | ||||
| Alpha Cleantec AG | Heidelberg | 100% | ||||
| Alpha Cleantec AG | Zug (CH) | 100% | ||||
| Balaton Agro Invest AG | Heidelberg | 100% | ||||
| Balaton Agro Investment plc | Addis Ababa (ET) | 99,9% | ||||
| E.D.A. Agro Industry plc | Addis Ababa (ET) | 86% | ||||
| BCT bio cleantec AG | Heidelberg | 100% | ||||
| Beta Systems Software AG | Berlin | 53% | ||||
| Beta Systems DCI Software AG | Berlin | 100% | ||||
| Beta Systems IT Operations GmbH | Berlin | 50% | ||||
| Beta GRC Consulting GmbH | Berlin | 100% | ||||
| HORIZONT Software GmbH | München | 100% | ||||
| HORIZONT IT Services CZ s.r.o | Budweis (CZ) | 100% | ||||
| SI Software Innovation GmbH | Neustadt an der Weinstraße | 100% | ||||
| Beta Systems IAM Software AG | Berlin | 100% | ||||
| Beta Systems IT Operations GmbH | Berlin | 50% | ||||
| Beta Systems EDV-Software Ges.m.b.H | Wien (A) | 100% | ||||
| Beta Systems Software AG | Kloten (CH) | 100% | ||||
| Beta Systems Software BV | Nieuwegein (NL) | 100% | ||||
| Beta Systems Software Espana SL | Madrid (E) | 100% | ||||
| Beta Systems Software France SARL | Ivry sur Seine (F) | 100% | ||||
| Beta Systems Software Ltd. | Cobham (GB) | 100% | ||||
| Beta Systems Software of North America, Inc. | McLean (USA) | 100% | ||||
| Beta Systems Software of Canada Inc. | Calgary (CAN) | 100% | ||||
| Beta Systems Software SPRL | Louvaine-la-Neuve (Belgien) | 100% | ||||
| Beta Systems Software SRL | Bollate (I) | 100% | ||||
| Betann Systems AB | Täby (S) | 100% | ||||
| capFlow AG | München | 56% | ||||
| CARUS AG | Heidelberg | 74% | ||||
| Carus Grundstücksgesellschaft Am Taubenfeld AG | Heidelberg | 100% | ||||
| ConBrio Beteiligungen AG | Frankfurt am Main | 100% | ||||
| Abalo Media GmbH i. Ins. | Wien (A) | 48% | ||||
| wSwipe mobile solutions GmbH | Wien (A) | 92% | ||||
| CornerstoneCapital Beteiligungen GmbH | Frankfurt am Main | 100% | ||||
| CornerstoneCapital II AG & Co. KG | Heidelberg | 100% | ||||
| ELTEC Elektronik AG | Mainz | 55% | ||||
| Prime Security GmbH | Mainz | 25% | ||||
| Eppstein Foils Holding GmbH | Eppstein | 70% | ||||
| EppsteinFOILS GmbH & Co. KG | Eppstein | 100% | ||||
| Verwaltungsgesellschaft Eppstein Foils mbH | Eppstein | 100% | ||||
| Eppstein Technologies GmbH | Eppstein | 100% | ||||
| Infoniqa HR Invest GmbH | Thalheim bei Wels (A) | 70% | ||||
| Infoniqa Payroll Holding GmbH | Thalheim bei Wels (A) | 71% | ||||
| Infoniqa HR Solutions GmbH | Thalheim bei Wels (A) | 100% | ||||
| Infoniqa LGV Payroll Services GmbH | Graz (A) | 100% | ||||
| Infoniqa LGV Payroll Solutions GmbH | Salzburg (A) | 100% | ||||
| Infoniqa Payroll GmbH | Böblingen | 100% | ||||
| CornerstoneCapital Verwaltungs AG | Heidelberg | 100% | ||||
| Deutsche Balaton Erste Schiffsverwaltungs GmbH | Haren – Ems | 100% | ||||
| Deutsche Balaton Immobilien I AG | Heidelberg | 100% | ||||
| DIO Deutsche Immobilien Opportunitäten AG | Bad Vilbel | 49,99% | ||||
| Eurohaus Frankfurt AG | Heidelberg | 100% | ||||
| Fidelitas Deutsche Industrie Holding AG | Heidelberg | 100% | ||||
| Goldrooster AG | Berlin | 36% | ||||
| Hart Technik kft. | Pomaz (HU) | 100% | ||||
| HOFFMANN HANDELS AG | Karlsruhe | 75% | ||||
| HW Verwaltungs AG | Halberstadt | 63% | ||||
| hydroWEB d.o.o Beograd | Belgrad (SRB) | 100% | ||||
| hydroWEB GmbH | Halberstadt | 100% | ||||
| Hyrican Informationssysteme AG | Kindelbrück | 45% | ||||
| Investunity AG | Heidelberg | 65% | ||||
| MARENAVE SCHIFFAHRTS AG | Hamburg | 21% | ||||
| Ming Le Sports AG | Heidelberg | 46% | ||||
| Mistral Media AG | Frankfurt am Main | 47% | ||||
| Bora Marketing & Advertisement GmbH i.L. | Köln | 100% | ||||
| Kalme GmbH | Frankfurt am Main | 100% | ||||
| MS „Active“ Schiffahrts GmbH & Co. KG | Haren – Ems | 98,8% | ||||
| MTM-Holding AG | Ittigen (CH) | 97% | ||||
| Nordic SSW 1000 AG & Co. KG | Hamburg | 51% | ||||
| Nordic SSW 1000 Verwaltungs AG | Hamburg | 80% | ||||
| OOC CTV GmbH & Co. KG | Hamburg | 54% | ||||
| OOC Nerz C.V. | Groningen | 95% | ||||
| OOC CTV Verwaltungs GmbH | Hamburg | 100% | ||||
| Prisma Equity AG | Heidelberg | 100% | ||||
| BNS Holding GmbH | Heidelberg | 100% | ||||
| PWI-PURE SYSTEM AG | Heidelberg | 60% | ||||
| Scintec Aktiengesellschaft | Rottenburg am Neckar | 30% | ||||
| Sparta AG | Hamburg | 23% | ||||
| SPK Süddeutsche Privatkapital AG | Heidelberg | 80% | ||||
| Strawtec Estate LTD | Kigali (RWA) | 100% | ||||
| Tabalon Mobile Technologies AG | Heidelberg | 100% | ||||
| Youbisheng Green Paper AG i.L. | Köln | 45% | ||||
| Web Financial Group SA | Madrid (E) | 25% | ||||
Beteiligungen an großen Kapitalgesellschaften mit einem Stimmrechtsanteil von mehr als 5 Prozent
| Name der Gesellschaft | Sitz | Kapitalanteil | ||||
| Biofrontera AG | Leverkusen | 8% | ||||
| Easy Software AG | Mülheim an der Ruhr | 11% | ||||
| Epigenomics AG | Berlin | 6% | ||||
| GK Software SE | Schöneck/Vogtland | 6% | ||||
| Impact Minerals Ltd. | West Perth (AUS) | 12% | ||||
| Kartonpack Rt. | Debrecen (HU) | 8% | ||||
| Mologen AG | Berlin | 5% | ||||
| Stellar Diamonds plc | London (GB) | 14% | ||||
| Sygnis AG | Heidelberg | 7% | ||||
| Ultrasonic AG i.l. | Köln | 7% | ||||
| Vtion Wireless Technology AG | Frankfurt am Main | 13% | ||||
(* Stand: 31. Dezember 2017)
Daneben hält die Deutsche Balaton AG wechselnd weitere Beteiligungen auch unter 5% an verschiedenen Unternehmen.