Temposonics GmbH & Co. KG
Temposonics GmbH & Co. KG is a German limited partnership with a limited-liability company as general partner (GmbH & Co. KG), entered in the commercial register (Handelsregister A) of the Amtsgericht Iserlohn under HRA 3314, with its seat in Lüdenscheid, North Rhine-Westphalia. The register sheet is current (“aktuell”). The partnership develops, manufactures and sells magnetostrictive linear-position sensors and liquid-level transmitters under the Temposonics brand, used to measure position and speed in industrial automation, mobile hydraulics and safety-critical machinery, and to measure fill levels in tanks.
The register records the partnership’s start (“Beginn”) and first entry as 21 November 1989. Its sheet was originally kept by the Amtsgericht Lüdenscheid (HRA 3716) and moved to Iserlohn when the register was converted to electronic form on 9 September 2004. Earlier names recorded in the register are MTS SYSTEMS GmbH & Co. KG and MTS Sensor Technologie GmbH & Co. KG; the present name, Temposonics GmbH & Co. KG, was entered on 8 June 2021. On 21 November 2017 the register recorded that the partnership had absorbed MTS Automotive Sensors GmbH, Lüdenscheid (Amtsgericht Iserlohn HRB 4660), as the acquiring entity under a merger agreement of 8 November 2017.
The product range on the company’s website covers industrial position sensors (R-Series, G-Series, E-Series, T-Series), mobile-hydraulics sensors (MH-Series), light-industrial sensors (C-Series) and level sensors (LP and LL Series). The legal notice of that website names Temposonics GmbH & Co. KG, Auf dem Schüffel 9, 58513 Lüdenscheid, register number HRA 3314 and VAT identification number DE 125 802 421. The company states that its Lüdenscheid site, in use since 1989, covers development, production, quality control and dispatch and employs over 300 people, and that a second German production site with 1,700 square metres of floor space opened in Dortmund-Aplerbeck in April 2024. These are the company’s own undated statements, not filed figures.
Temposonics GmbH & Co. KG is not listed on any exchange. The Bundesanzeiger index shows filed annual financial statements for the financial year 1 October 2020 to 30 September 2021 (published 16 December 2022) and for a short financial year from 1 October 2021 to 31 December 2021 (published 2 March 2023). The contents of these filings sit behind the Bundesanzeiger’s access check and were not read, so no entity-level revenue, profit or headcount is given here. Filings for financial years from 2022 onward are lodged with the Unternehmensregister, which could not be queried programmatically.
Sources
- Handelsregister, Amtsgericht Iserlohn HRA 3314, chronological printout (CD), https://www.handelsregister.de, retrieved 2026-10-15 (no permanent per-document URL)
- Temposonics, legal notice (Impressum), https://temposonics.com/de/ueber-uns/impressum, retrieved 2026-10-15
- Temposonics, production sites, https://temposonics.com/de/ueber-uns/produktionsstandorte, retrieved 2026-10-15
- Bundesanzeiger, search results for “Temposonics GmbH & Co. KG” (Rechnungslegung index entries of 16.12.2022 and 02.03.2023), https://www.bundesanzeiger.de/pub/de/suche, retrieved 2026-10-15
- Company fundamentals
- Corporate linkage & group structures
- Digitized company financials
- Firmographics — websites, social profiles, revenue and employee estimates
Shareholders
1
Shareholders of Temposonics GmbH & Co. KG
Temposonics GmbH & Co. KG is a limited partnership, so it has partners rather than shareholders and issues no shares. The commercial register (Amtsgericht Iserlohn, HRA 3314) records two partners. The general partner (persönlich haftende Gesellschafterin) is Temposonics Verwaltungs GmbH, Lüdenscheid (Amtsgericht Iserlohn HRB 4044); the register records no capital contribution for it. The only limited partner (Kommanditist) is Amphenol Systems GmbH, Berlin (Amtsgericht Charlottenburg HRB 5998 B), with a registered liability contribution (Einlage) of DEM 2,005,000.00. That partner was entered under its former name, MTS SYSTEMS GmbH; the register recorded its new name on 29 July 2021.
A registered Einlage is the limit of a limited partner’s liability. It is not a share of capital, profit or votes, and the register publishes no percentage interest for either partner. The partnership agreement, which would set the partners’ economic and voting rights, is not filed with the register. The provider table on this page shows Amphenol Systems GmbH as holding 100% in 2,005,000 “ordinary” shares of DEM 1; no such shares exist, and the 100% figure has no filed source. What the register does show is that Amphenol Systems GmbH is the sole limited partner, and that the general partner is itself wholly owned by Temposonics GmbH & Co. KG.
The register also shows who owns Amphenol Systems GmbH. Its list of shareholders, added to the register file on 17 June 2021, names Amphenol Technologies Holding GmbH, Heilbronn (Amtsgericht Stuttgart HRB 104157), as holder of 100% of its EUR 3,834,690 share capital.
Ultimate beneficial ownership
No natural person has been identified as the ultimate beneficial owner of Temposonics GmbH & Co. KG. The ownership chain above Amphenol Technologies Holding GmbH was not traced through the register. Amphenol Corporation (NYSE: APH) lists Temposonics GmbH & Co. KG, Temposonics Verwaltungs GmbH, Amphenol Systems GmbH and Amphenol Technologies Holding GmbH as subsidiaries in Exhibit 21.1 to its annual report for 2025, which gives no ownership percentages. Amphenol Corporation’s shares are publicly traded.
Data availability
Partial. The German register publishes a partnership’s general and limited partners and each limited partner’s Einlage, but no percentage interests. Shareholder lists are filed only for GmbHs. The German Transparenzregister of beneficial owners has been closed to general public inspection since the CJEU judgment of 22 November 2022 (C-37/20 and C-601/20), so beneficial-ownership data is restricted rather than absent.
Sources
- Handelsregister, Amtsgericht Iserlohn HRA 3314 (Temposonics GmbH & Co. KG), chronological printout (CD), entries 1 (09.09.2004), 3 (27.01.2011) and 10 (29.07.2021), https://www.handelsregister.de, retrieved 2026-10-15
- Handelsregister, Amtsgericht Iserlohn HRB 4044 (Temposonics Verwaltungs GmbH), list of shareholders added to the register file on 27.07.2022, https://www.handelsregister.de, retrieved 2026-10-15
- Handelsregister, Amtsgericht Charlottenburg HRB 5998 B (Amphenol Systems GmbH), notarially certified list of shareholders added to the register file on 17.06.2021, https://www.handelsregister.de, retrieved 2026-10-15
- Amphenol Corporation, Form 10-K for 2025, Exhibit 21.1 (subsidiaries as of 31 December 2025), filed 2026-02-11, https://www.sec.gov/Archives/edgar/data/820313/000110465926013549/aph-20251231xex21d1.htm, retrieved 2026-10-15
Data-provider feed — rows as supplied to Zavia for Handelsregister (Commercial Register), including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| Amphenol Systems GmbH | 100% | Handelsregister (Commercial Register) |
Officers
2
Directors and officers of Temposonics GmbH & Co. KG
As a GmbH & Co. KG, Temposonics GmbH & Co. KG has no managing directors of its own. Under the register’s general rule of representation, each general partner represents the partnership alone. The only general partner since 2011 is Temposonics Verwaltungs GmbH (Amtsgericht Iserlohn HRB 4044), formerly MTS Sensor Technologie und Verwaltungs GmbH. A second general partner, MTS Systems Beteiligungs GmbH, Berlin, left the partnership by a register entry of 27 January 2011.
The partnership is therefore managed in practice by the managing directors (Geschäftsführer) of the general partner. The register for HRB 4044 shows two current managing directors, each with sole power of representation: Jörn Eike Schmidt, entered on 18 May 2022, and Craig Anthony Lampo, entered on 21 June 2022. The company’s own legal notice names the same two people. Since the register sheet was converted to electronic form in 2004, it records seven other managing-director appointments, all of which have ended.
The partnership’s own register sheet records two grants of commercial power of attorney (Prokura), and both have ended. A joint Prokura was entered on 25 June 2013 and recorded as expired on 16 January 2015. A sole Prokura was entered on 22 December 2014 and recorded as expired on 26 March 2018. No Prokura is currently registered for the partnership. The two individuals in the provider’s officer table are these two former holders of Prokura. They were not directors or officers of the partnership, and neither holds a current position.
Recent officer changes
- 18 May 2022 (register entry, HRB 4044): Jörn Eike Schmidt entered as managing director of the general partner. Dr. Thomas Grahl, appointed by an entry of 20 October 2015, recorded as no longer a managing director.
- 21 June 2022 (register entry, HRB 4044): Craig Anthony Lampo entered as managing director of the general partner, with sole power of representation.
- 15 September 2022 (register entry, HRB 4044): David Thomas Hore, appointed by an entry of 17 January 2017, recorded as no longer a managing director.
Data availability
Current only, with history. The German commercial register publishes officeholders, their powers of representation and the dates on which changes were entered; these are entry dates and may differ from effective dates. Nationality: not disclosed, because the register does not record it. The register also prints dates of birth and towns of residence, which are deliberately not reproduced here.
Sources
- Handelsregister, Amtsgericht Iserlohn HRA 3314 (Temposonics GmbH & Co. KG), chronological printout (CD), entries 1, 3, 4, 5, 6, 8 and 9, https://www.handelsregister.de, retrieved 2026-10-15
- Handelsregister, Amtsgericht Iserlohn HRB 4044 (Temposonics Verwaltungs GmbH), chronological printout (CD), entries 1–12, https://www.handelsregister.de, retrieved 2026-10-15
- Temposonics, legal notice (Impressum), https://temposonics.com/de/ueber-uns/impressum, retrieved 2026-10-15
Data-provider feed — rows as supplied to Zavia for Handelsregister (Commercial Register), including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
Group Structure
Group structure of Temposonics GmbH & Co. KG
Temposonics GmbH & Co. KG belongs to the Amphenol group. The commercial register links it to the group as follows. Its sole limited partner is Amphenol Systems GmbH (Berlin, HRB 5998 B), and that company’s list of shareholders names Amphenol Technologies Holding GmbH (Stuttgart register, HRB 104157) as its 100% shareholder. The partnership in turn holds 100% of its own general partner, Temposonics Verwaltungs GmbH. This is a so-called Einheits-KG, in which the partnership owns its general partner.
The ultimate parent is Amphenol Corporation, a Delaware company listed on the New York Stock Exchange (APH). In its Exhibit 21.1 subsidiary lists as of 31 December 2021, 2023 and 2025, it names Temposonics GmbH & Co. KG, Temposonics Verwaltungs GmbH, Amphenol Systems GmbH and Amphenol Technologies Holding GmbH. These lists are flat: they give no percentages and do not separate direct from indirect holdings. The links between Amphenol Technologies Holding GmbH and Amphenol Corporation were not traced through registers.
For scale, Amphenol Corporation reported consolidated net sales of USD 23,094.7 million for 2025. That is a group figure, not the revenue of Temposonics GmbH & Co. KG. Apart from its general partner, no subsidiary of the partnership was verified.
Verified corporate relationships
| Entity | Country | Registration number | Relationship | Ownership | Status | Information date |
|---|---|---|---|---|---|---|
| Amphenol Corporation | United States (Delaware) | SEC CIK 0000820313 | Ultimate parent (lists the partnership as a subsidiary) | Ownership percentage not disclosed | Listed, NYSE: APH | 31 Dec 2025 |
| Amphenol Technologies Holding GmbH | Germany | HRB 104157, Amtsgericht Stuttgart | Indirect parent; sole shareholder of the limited partner | 100% of Amphenol Systems GmbH | Current | 17 Jun 2021 |
| Amphenol Systems GmbH (formerly MTS SYSTEMS GmbH) | Germany | HRB 5998 B, Amtsgericht Charlottenburg | Immediate parent; sole limited partner (Kommanditist) | Einlage DEM 2,005,000; no percentage registered | Current | 29 Jul 2021 |
| Temposonics Verwaltungs GmbH | Germany | HRB 4044, Amtsgericht Iserlohn | General partner and direct subsidiary | 100% of DEM 100,000 share capital | Current | 27 Jul 2022 |
| Temposonics, LLC | United States (Delaware) | Not verified | Affiliate under the same ultimate parent (per Exhibit 21.1) | Not applicable | Listed as a subsidiary | 31 Dec 2025 |
| MTS Automotive Sensors GmbH | Germany | HRB 4660, Amtsgericht Iserlohn | Historical: merged into the partnership | Not applicable | Absorbed | 21 Nov 2017 |
Recent structural changes
- 21 November 2017: the register records that the partnership absorbed MTS Automotive Sensors GmbH under a merger agreement of 8 November 2017.
- 7 April 2021: Amphenol Corporation announced that it had completed the acquisition of MTS Systems Corporation, the US group to which the partnership and its limited partner then belonged. Amphenol said it had agreed to sell MTS’s Test & Simulation business to Illinois Tool Works and to keep the sensors business.
- 2021: the register entered the change of the general partner’s name to Temposonics Verwaltungs GmbH on 1 June, the partnership’s own change of name on 8 June, and its limited partner’s change of name to Amphenol Systems GmbH on 29 July. The shareholder list showing Amphenol Technologies Holding GmbH as sole shareholder of Amphenol Systems GmbH was added to the register file on 17 June 2021.
Data availability
Partial. The German register links are verified, with dates. The levels above Amphenol Technologies Holding GmbH rest on Amphenol’s Exhibit 21.1, which carries no percentages. The provider’s corporate tree uses keys that combine a postcode with the register number (for example “DE 58636A3314”); these are not register numbers.
Sources
- Handelsregister, Amtsgericht Iserlohn HRA 3314, chronological printout (CD), https://www.handelsregister.de, retrieved 2026-10-15
- Handelsregister, Amtsgericht Iserlohn HRB 4044, chronological printout and list of shareholders (added to the register file 27.07.2022), https://www.handelsregister.de, retrieved 2026-10-15
- Handelsregister, Amtsgericht Charlottenburg HRB 5998 B, chronological printout and list of shareholders (added to the register file 17.06.2021), https://www.handelsregister.de, retrieved 2026-10-15
- Amphenol Corporation, Form 10-K for 2025, Exhibit 21.1, filed 2026-02-11, https://www.sec.gov/Archives/edgar/data/820313/000110465926013549/aph-20251231xex21d1.htm, retrieved 2026-10-15
- Amphenol Corporation, Form 10-K for 2021, Exhibit 21.1, filed 2022-02-09, https://www.sec.gov/Archives/edgar/data/820313/000155837022000961/aph-20211231xex21d1.htm, retrieved 2026-10-15
- Amphenol Corporation, Form 8-K, Exhibit 99.1 “Amphenol completes acquisition of MTS Systems”, filed 2021-04-07, https://www.sec.gov/Archives/edgar/data/820313/000110465921047428/tm2112193d1_ex99-1.htm, retrieved 2026-10-15
- Amphenol Corporation, 2025 net sales (XBRL, Form 10-K filed 2026-02-11), https://data.sec.gov/api/xbrl/companyconcept/CIK0000820313/us-gaap/RevenueFromContractWithCustomerExcludingAssessedTax.json, retrieved 2026-10-15
Data-provider feed — rows as supplied to Zavia for Handelsregister (Commercial Register), including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
Amphenol Corporation
United States
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Frequently Asked Questions
What does Temposonics GmbH & Co. KG do?
Temposonics GmbH & Co. KG (Amtsgericht Iserlohn HRA 3314, Lüdenscheid) develops and manufactures magnetostrictive linear-position sensors and liquid-level transmitters under the Temposonics brand; it was formerly named MTS Sensor Technologie GmbH & Co. KG and took its present name by a register entry of 8 June 2021.
Who owns Temposonics GmbH & Co. KG?
Temposonics GmbH & Co. KG has no shares; the register records Temposonics Verwaltungs GmbH as general partner and Amphenol Systems GmbH (HRB 5998 B Charlottenburg) as sole limited partner with a liability contribution of DEM 2,005,000, without any percentage interest.
Who is Temposonics GmbH & Co. KG's UBO (Ultimate Beneficial Owner)?
No natural person has been verified as ultimate beneficial owner of Temposonics GmbH & Co. KG; it is listed as a subsidiary by Amphenol Corporation (NYSE: APH), and the German Transparenzregister has been closed to the public since November 2022.
What is Temposonics GmbH & Co. KG's company registration number?
Temposonics GmbH & Co. KG's registration number is HRA 3314 Iserlohn, filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is Temposonics GmbH & Co. KG still an active company?
Temposonics GmbH & Co. KG's status on Handelsregister (Commercial Register) is listed as active.
When was Temposonics GmbH & Co. KG incorporated?
Temposonics GmbH & Co. KG was incorporated on 21 November 1989, according to Handelsregister (Commercial Register).
What is Temposonics GmbH & Co. KG's registered address?
The registered address on file for Temposonics GmbH & Co. KG is Lüdenscheid, Germany.
What is Temposonics GmbH & Co. KG's revenue?
No entity-level revenue for Temposonics GmbH & Co. KG is given: its filed accounts (latest indexed: short financial year to 31 December 2021) could not be read freely. Amphenol Corporation reported consolidated net sales of USD 23,094.7 million for 2025, which is a group figure.
Is Temposonics GmbH & Co. KG listed on a stock exchange?
Temposonics GmbH & Co. KG is a limited partnership and is not listed on any exchange.
Who are the officers/directors of Temposonics GmbH & Co. KG?
Temposonics GmbH & Co. KG is represented by its general partner Temposonics Verwaltungs GmbH, whose managing directors in the register are Jörn Eike Schmidt (entered 18 May 2022) and Craig Anthony Lampo (entered 21 June 2022); no Prokura is currently registered for the partnership.
Does Temposonics GmbH & Co. KG have a parent company or subsidiaries?
Temposonics GmbH & Co. KG is part of the Amphenol group: its sole limited partner Amphenol Systems GmbH is wholly owned by Amphenol Technologies Holding GmbH, Amphenol Corporation lists it as a subsidiary, and the partnership itself owns 100% of its general partner Temposonics Verwaltungs GmbH.
Can Zavia monitor changes to Temposonics GmbH & Co. KG's ownership over time?
This profile reflects a point-in-time snapshot from Handelsregister (Commercial Register). Zavia's monitoring API can track changes to Temposonics GmbH & Co. KG's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access Temposonics GmbH & Co. KG's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Germany, so records like Temposonics GmbH & Co. KG's registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Handelsregister (Commercial Register) and was last synced on 8 October 2026.