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Photo: Dr. Simon Sabel, Managing Partner, Attorney at Law at Walberg & Cie. (© Walberg & Cie.)

Walberg & Cie. advises YAXI on investment by Ernst REINER

Photo: Dr. Simon Sabel, Mana­ging Part­ner, Attor­ney at Law at Walberg & Cie. (© Walberg & Cie.) 
21. Octo­ber 2025

Munich/Nuremberg — YAXI GmbH (“YAXI”), a start-up in the field of open banking, has gained Ernst REINER GmbH & Co KG (“REINER”) as an expe­ri­en­ced inves­tor and stra­te­gic part­ner for digi­tal secu­rity and high-quality home banking secu­rity solu­ti­ons. REINER’s invest­ment streng­thens YAXI’s growth and inno­va­tive power and marks an important step towards further posi­tio­ning the company as a leading infra­struc­ture provi­der for modern banking services. 

YAXI was foun­ded in 2022 by Dr. Vincent Haupert (CEO), Chris­to­pher Schramm (COO) and Andreas Stührk
(CTO). YAXI offers a secure and flexi­ble open banking infra­struc­ture that enablescompa­nies to offer their users payment and account infor­ma­tion tran­sac­tionswith the highest level of confi­den­tia­lity. The tech­no­logy deli­bera­tely dispen­ses with tradi­tio­nalserver infra­struc­tures and focu­ses on easy access, data protec­tion and user auto­nomy,without custo­mers incur­ring regu­la­tory licen­sing costs. A special
unique selling point of YAXI is that the tech­no­logy makes the tran­sac­tions cryp­to­gra­phi­cally secure
and traceable, so that neither the company nor the custo­mers ever have access to the
access data. As a result, unlike other provi­ders, YAXI does not require a PSD2 license.
The white label product is alre­ady being used successfully: Fliz­pay, for exam­ple, works with YAXI
and enables custo­mers of the neobro­ker Trade Repu­blic to top up their account
.

REINER, based in Furt­wan­gen in the Black Forest, is a family-run tech­no­logy company
with over 110 years of history. The REINER Group combi­nes precis­ion, inno­va­tion and
manu­fac­tu­ring exper­tise in the busi­ness areas of marking and precis­ion tech­no­logy. The REINER-Group includes the subsi­dia­ries REINER SCT and HORRAY. Toge­ther, thecompany stands for a strong network of mecha­nics, tech­no­logy and digi­ta­liza­tion.The company is repre­sen­ted world­wide with part­ners and has stood for quality, inno­va­tion andrelia­bi­lity from the Black Forest since 1913. As a pionee­ring provi­der of digi­tal. REINER comple­ments the YAXI ecosys­tem with its many years of exper­tise in the areas of authen­ti­ca­tion and secure data transmission. 

As part of the tran­sac­tion, REINER acqui­red shares from the foun­ders and inves­ted addi­tio­nal seven-digit capi­tal in YAXI as part of
a capi­tal increase. After comple­tion of the
tran­sac­tion, REINER will hold 55 percent of the shares in YAXI, while the remai­ning 45 percent will remain with the
three founders. 

YAXI will use the addi­tio­nal capi­tal speci­fi­cally for expan­sion in Europe and the further deve­lo­p­ment of
inno­va­tive secu­rity and payment solu­ti­ons. “With Reiner, we have a strong part­ner at
who enjoys an excel­lent repu­ta­tion as a relia­ble part­ner, espe­ci­ally in the banking and
secu­rity envi­ron­ment,” comm­ents Dr. Vincent Haupert on the tran­sac­tion. The foun­ders and the entire
team at YAXI welcome the new part­ner­ship as a stra­te­gic milestone. 

The Walberg & Cie. team led by Dr. Simon Sabel, Dr. Sebas­tian Binder and Marc Wies­ner, LL.M.
(Yale) provi­ded compre­hen­sive legal and tax advice to the foun­ders of YAXI on the tran­sac­tion. The
advi­sory focus was on the legal and tax struc­tu­ring of the invest­ment as well as the
draf­ting and nego­tia­tion of the complete invest­ment docu­men­ta­tion, in parti­cu­lar the Investment
Agree­ment, the Share Purchase Agree­ment (SPA) and the Share­hol­ders’ Agree­ment (SHA). The
tran­sac­tion under­lines Walberg & Cie.‘s exper­tise in advi­sing on strategic
part­ner­ships between tech­­no­­logy-orien­­ted start-ups and estab­lished family busi­nesses, where
the diffe­rent inte­rests and cultures of both types of compa­nies can be successfully combi­ned in
sustainable structures. 

Advi­sor YAXI GmbH: Walberg Law Tax Stra­tegy GmbH & Cie. KG

Dr. Simon Sabel, Mana­ging Part­ner, Attor­ney (Corpo­rate, M&A), Co-Lead
Dr. Sebas­tian Binder, Asso­ciate Part­ner, Tax Advi­sor (Tax), Co-Lead
Marc Wies­ner, LL.M. (Yale), Asso­ciate (Corpo­rate, M&A)

About Walberg & Cie.

Walberg & Cie. is a specia­li­zed legal and tax boutique based in Munich. The focus is on M&A, restruc­tu­ring and stra­te­gic invest­ments for inves­tors, entre­pre­neurs and compa­nies. The inter­di­sci­pli­nary team advi­ses on complex natio­nal and inter­na­tio­nal transactions.

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