UK companies/SIC 26511/Shareholders/Page 6

Shareholders of UK companies in SIC 26511Page 6 of 18

Manufacture of electronic measuring, testing etc. equipment, not for industrial process control·1,578 companies carry this code·30 shown on this page

SIC 26511 — Manufacture of electronic measuring, testing etc. equipment, not for industrial process control is the Companies House industry code carried by 1,578 UK companies. This page sets out the shareholder register of 30 of them: 120 distinct shareholders holding 129 share-class positions. Every figure comes from the statement of capital and list of members in that company’s most recent CS01 confirmation statement, filed between 2021-12-30 and 2026-04-13. Each company and each shareholder carries a Sophymarine OpenRegistry ID.

Industry code
SIC 26511

On the UK register
1,578

With a shareholder register
537

Companies on this page
30

Distinct shareholders
120

Shareholders that are UK companies
16

CAMBRIDGE RESEARCH SYSTEMS LIMITED

openregistry-gb-02350123·confirmation statement 2023-03-17·4 shareholders·3 share classes

Shareholder	Share class	Shares held
THOMAS MACDONALD ROBSONopenregistry-h-thomas-macdonald-robson-9f99ce	A ORDINARY	71
CAROL ANNE LUSCOMBEopenregistry-h-carol-anne-luscombe-f4d104	A ORDINARY	36
STEVEN RICHARD ELLIOTTopenregistry-h-steven-richard-elliott-18a13f	C ORDINARY	12
RICHARD JOHN ROBSONopenregistry-h-richard-john-robson-4bff9d	B ORDINARY	0

CONNECTED RESPONSE LIMITED

openregistry-gb-SC621878·confirmation statement 2022-02-19·4 shareholders·3 share classes

Shareholder	Share class	Shares held	% of class
WARMWORKS SCOTLAND LLPopenregistry-gb-SO305326	ORDINARY SHARES OF £0.67 EACH	60,000	100.00%
WARMWORKS SCOTLAND LLPopenregistry-gb-SO305326	ORDINARY SHARES OF £0.80 EACH	25,000	100.00%
DAVID WILLIAM REYNOLDSopenregistry-h-david-william-reynolds-e494a2	ORDINARY	0
KENNETH JAMES COATS CAMERONopenregistry-h-kenneth-james-coats-cameron-730c81	ORDINARY	0
MARTIN EMRYS AYO ADE-HALLopenregistry-h-martin-emrys-ayo-ade-hall-39f3e1	ORDINARY	0

TIME ELECTRONICS LIMITED

openregistry-gb-00904328·confirmation statement 2024-08-28·4 shareholders·2 share classes

Shareholder	Share class	Shares held	% of class
MARTIN JAMES BAILEYopenregistry-h-martin-james-bailey-5fecc9	ORDINARY A	5,100	63.75%
JOANNE L BAILEYopenregistry-h-joanne-l-bailey-50dcea	ORDINARY A	2,900	36.25%
ROBERT BAILEYopenregistry-h-robert-bailey-e1c545	ORDINARY B	1,500	75.00%
MARIA BAILEYopenregistry-h-maria-bailey-445893	ORDINARY B	500	25.00%

LINKAM SCIENTIFIC INSTRUMENTS LIMITED

openregistry-gb-01671841·confirmation statement 2025-10-27·4 shareholders·2 share classes

Shareholder	Share class	Shares held
V B KAMP, J KAMP, A C F KAMP - TRUSTEES OF THE LM KAMP DECEASED WILL TRUSTopenregistry-h-v-b-kamp-j-kamp-a-c-f-kamp-trustees-of-t-5c3129	B ORDINARY	4,900
JACQUELINE SARA AHOopenregistry-h-jacqueline-sara-aho-e01657	A ORDINARY	2,550
VINCENT KAMPopenregistry-gb-10650809	A ORDINARY	2,550
ARNOLDUS CORNELIUS FRANCOIS KAMPopenregistry-h-arnoldus-cornelius-francois-kamp-e2130a	A ORDINARY	0

KENCO TECHNIQUES LIMITED

openregistry-gb-02354647·confirmation statement 2022-03-02·4 shareholders·2 share classes

Shareholder	Share class	Shares held	% of class
LESLIE ROBERT ROCKLEYopenregistry-h-leslie-robert-rockley-3fa092	ORDINARY	2,500	50.00%
RAYMOND ALLAN ROCKLEYopenregistry-h-raymond-allan-rockley-6a12bc	ORDINARY	2,500	50.00%
MICHELLE ROCKLEYopenregistry-h-michelle-rockley-6bb52b	ORDINARY A	1	50.00%
RUTH MARION ROCKLEYopenregistry-h-ruth-marion-rockley-343f9d	ORDINARY A	1	50.00%

APPLIED WEIGHING INTERNATIONAL LIMITED

openregistry-gb-02851771·confirmation statement 2025-09-09·4 shareholders·2 share classes

Shareholder	Share class	Shares held
APPLIED VWS LIMITEDopenregistry-gb-16198200	A ORDINARY	227,500
APPLIED VWS LIMITEDopenregistry-gb-16198200	B ORDINARY	122,500
JOHN TREACYopenregistry-h-john-treacy-86bc8f	B ORDINARY	0
JULIAN GLASSPOLEopenregistry-h-julian-glasspole-9ec9a3	A ORDINARY	0
PHILIPPA TREACYopenregistry-h-philippa-treacy-dde561	B ORDINARY	0

RS HYDRO LIMITED

openregistry-gb-03452628·confirmation statement 2026-02-13·4 shareholders·2 share classes

Shareholder	Share class	Shares held	% of class
ROBERT STEVENSopenregistry-h-robert-stevens-1f4c9a	A ORDINARY	7,700	77.00%
LINDSEY STEVENSopenregistry-h-lindsey-stevens-a59bc1	A ORDINARY	2,300	23.00%
JASON LEE ANDERSONopenregistry-h-jason-lee-anderson-ee11fe	B ORDINARY	105	50.00%
ROBERT STEVENSopenregistry-h-robert-stevens-1f4c9a	B ORDINARY	105	50.00%
MICHAEL OSWELLopenregistry-h-michael-oswell-5a4c1a	B ORDINARY	0	0.00%

SERCON LIMITED

openregistry-gb-04290072·confirmation statement 2026-03-24·4 shareholders·2 share classes

Shareholder	Share class	Shares held
TECHCOMP (EUROPE) LIMITEDopenregistry-gb-08330380	ORDINARY	50
TECHCOMP (EUROPE) LIMITEDopenregistry-gb-08330380	A ORDINARY	6
GARRY DEWARS ARMSTRONGopenregistry-h-garry-dewars-armstrong-e86dc4	ORDINARY	0
GARRY DEWARS ARMSTRONGopenregistry-h-garry-dewars-armstrong-e86dc4	A ORDINARY	0
JOANNE O'CONNORopenregistry-h-joanne-o-connor-4e378d	ORDINARY	0
MARK O'CONNORopenregistry-gb-16005671	ORDINARY	0

GT VISION LTD

openregistry-gb-04974093·confirmation statement 2023-09-19·4 shareholders·2 share classes

Shareholder	Share class	Shares held
NORMEDICA INTERNATIONAL LIMITEDopenregistry-gb-14330628	ORDINARY GBP1 SHARES	100
NORMEDICA INTERNATIONAL LIMITEDopenregistry-gb-14330628	ORDINARY B CLASS SHARES	10
MR IAN DAVID BALDWINopenregistry-h-mr-ian-david-baldwin-6f0016	ORDINARY GBP1 SHARES	0
MR ROBERT ALAN TOWNopenregistry-h-mr-robert-alan-town-5599cb	ORDINARY B CLASS SHARES	0
MR ROBERT ALAN TOWNopenregistry-h-mr-robert-alan-town-5599cb	ORDINARY GBP1 SHARES	0
MRS CHRISTINE ANN TOWNopenregistry-h-mrs-christine-ann-town-9ce370	ORDINARY B CLASS SHARES	0
MRS CHRISTINE ANN TOWNopenregistry-h-mrs-christine-ann-town-9ce370	ORDINARY GBP1 SHARES	0

UMMU LTD

openregistry-gb-14802711·confirmation statement 2026-04-13·4 shareholders·2 share classes

Shareholder	Share class	Shares held	% of class
WHITESANDS HOLDINGS LTDopenregistry-gb-14802221	ORDINARY B	1,000	91.32%
WHITESANDS HOLDINGS LTDopenregistry-gb-14802221	ORDINARY A	1,000	100.00%
GALLOWAY LIMITEDopenregistry-h-galloway-limited-eda050	ORDINARY B	40	3.65%
ARGOSOPHIA GMBHopenregistry-h-argosophia-gmbh-b9d992	ORDINARY B	35	3.20%
PETER FANCONIopenregistry-h-peter-fanconi-a338b0	ORDINARY B	20	1.83%

DDK POSITIONING LIMITED

openregistry-gb-SC551326·confirmation statement 2025-12-06·4 shareholders·2 share classes

Shareholder	Share class	Shares held
IRIDIUM SATELLITE UK LIMITEDopenregistry-gb-12505689	A ORDINARY	43,278
TOPCON POSITIONING SYSTEMS INCopenregistry-h-topcon-positioning-systems-inc-fd4df6	A ORDINARY	43,278
KEVIN GAFFNEYopenregistry-h-kevin-gaffney-250005	ORDINARY	24,944
DAVID ALEXANDER ROBERT MACKAYopenregistry-h-david-alexander-robert-mackay-8621ff	ORDINARY	18,685

R.K. PRINT-COAT INSTRUMENTS LIMITED

openregistry-gb-00775106·confirmation statement 2023-12-15·4 shareholders·1 share class

Shareholder	Share class	Shares held
THOMAS ROMAN KERCHISSopenregistry-h-thomas-roman-kerchiss-0d44ed	ORDINARY	6,581
HARRIET LUCY JERRAMopenregistry-h-harriet-lucy-jerram-824342	ORDINARY	1,645
JESSICA LOUISE SAVORYopenregistry-h-jessica-louise-savory-7cc5eb	ORDINARY	1,645
JOANNE KERCHISSopenregistry-h-joanne-kerchiss-1a9a58	ORDINARY	1,097

SPEIRS ROBERTSON AND COMPANY LIMITED

openregistry-gb-00909741·confirmation statement 2024-04-05·4 shareholders·1 share class

Shareholder	Share class	Shares held
IAIN GRAHAM ROBERTSONopenregistry-h-iain-graham-robertson-2839a2	ORDINARY	668
MARION ELIZABETH ROBERTSONopenregistry-h-marion-elizabeth-robertson-60ff2a	ORDINARY	668
LAUREN LYNNE ROBERTSONopenregistry-h-lauren-lynne-robertson-8b42bc	ORDINARY	664
CHARLES MORVEN ROBERTSONopenregistry-h-charles-morven-robertson-46acf8	ORDINARY	0

BIODATA LIMITED

openregistry-gb-01107155·confirmation statement 2022-06-12·4 shareholders·1 share class

Shareholder	Share class	Shares held
BIODATA LTDopenregistry-gb-01107155	ORDINARY	500
GRAHAM ARTHUR DAVID COLLINSopenregistry-h-graham-arthur-david-collins-740ce2	ORDINARY	253
BRIAN GEORGE OSBORNEopenregistry-h-brian-george-osborne-a01aa5	ORDINARY	247
ASAD SYEDopenregistry-h-asad-syed-833074	ORDINARY	0

MONITRAN LIMITED

openregistry-gb-02054040·confirmation statement 2025-09-30·4 shareholders·1 share class

Shareholder	Share class	Shares held
GRINSTY RAIL LIMITEDopenregistry-gb-07676183	ORDINARY	200
FIONA JANE WYATTopenregistry-h-fiona-jane-wyatt-38662f	ORDINARY	0
GERALDENE ANN LYONopenregistry-h-geraldene-ann-lyon-841cdd	ORDINARY	0
JOYCE PICKARDopenregistry-h-joyce-pickard-6dba67	ORDINARY	0

TELE-PRODUCTS LIMITED

openregistry-gb-02295985·confirmation statement 2024-09-02·4 shareholders·1 share class

Shareholder	Share class	Shares held
CYCLOPS ELECTRONICS LIMITEDopenregistry-gb-SC128862	ORDINARY	400,000
ANDREW GURNELLopenregistry-h-andrew-gurnell-445dff	ORDINARY	0
J. SEGARANopenregistry-h-j-segaran-0c9098	ORDINARY	0
T. SEGARANopenregistry-h-t-segaran-8dcd52	ORDINARY	0

ADVANCED WITNESS SYSTEMS LIMITED

openregistry-gb-02565074·confirmation statement 2026-01-09·4 shareholders·1 share class

Shareholder	Share class	Shares held	% of class
R.G. SANGSTERopenregistry-h-r-g-sangster-a4bd0a	ORDINARY	19,760	98.80%
THOMAS PETER HALEYopenregistry-h-thomas-peter-haley-eb8fa9	ORDINARY	120	0.60%
DAVID WHITMILLopenregistry-h-david-whitmill-7dc925	ORDINARY	60	0.30%
PHILIP JAMES MELAY RICHARDSopenregistry-h-philip-james-melay-richards-272844	ORDINARY	60	0.30%

ACCEL POWER SUPPLIES LIMITED

openregistry-gb-02586898·confirmation statement 2026-02-28·4 shareholders·1 share class

Shareholder	Share class	Shares held
STEPHEN JOHN GAMBLENopenregistry-h-stephen-john-gamblen-29e405	ORDINARY	34
GARY CHRISTOPHER WHITTINGTONopenregistry-h-gary-christopher-whittington-6f2801	ORDINARY	30
SAMANTHA ESTELLE WHITTINGTONopenregistry-h-samantha-estelle-whittington-e1cb3c	ORDINARY	20
PRISCILLA GAMBLENopenregistry-h-priscilla-gamblen-dc329d	ORDINARY	16

C-MAX LIMITED

openregistry-gb-02761056·confirmation statement 2022-11-02·4 shareholders·1 share class

Shareholder	Share class	Shares held
TIMOTHY ROBINSONopenregistry-h-timothy-robinson-277137	ORDINARY	90
GAVIN ROBINSONopenregistry-h-gavin-robinson-ccf734	ORDINARY	64
HUGH FRATERopenregistry-h-hugh-frater-b215b9	ORDINARY	46
ROBINSON PETERopenregistry-h-robinson-peter-922927	ORDINARY	0

E.P.A. PRODUCTS LIMITED

openregistry-gb-03129515·confirmation statement 2026-01-08·4 shareholders·1 share class

Shareholder	Share class	Shares held
ANDREW STUART WILLIAMSONopenregistry-h-andrew-stuart-williamson-8fec80	ORDINARY	51
ALISON PLUMMERopenregistry-h-alison-plummer-7cfc9b	ORDINARY	49
CHRISTOPHER JAMES PLUMMERopenregistry-h-christopher-james-plummer-7af1f3	ORDINARY	0
SOPHIE MAY PLUMMERopenregistry-h-sophie-may-plummer-c743e0	ORDINARY	0

EJ ELECTRONICS LIMITED

openregistry-gb-03444471·confirmation statement 2024-09-19·4 shareholders·1 share class

Shareholder	Share class	Shares held	% of class
DAMIAN JAMES CUMBERBATCHopenregistry-h-damian-james-cumberbatch-b66848	ORDINARY	51	51.00%
CLAYTON BURZILEE ELLIOTTopenregistry-h-clayton-burzilee-elliott-8ff789	ORDINARY	26	26.00%
LEROY ERROL ELLIOTTopenregistry-h-leroy-errol-elliott-f9f956	ORDINARY	15	15.00%
STEPHEN W SMITHopenregistry-h-stephen-w-smith-7b3ccb	ORDINARY	8	8.00%

CALEX ELECTRONICS LIMITED

openregistry-gb-03737294·confirmation statement 2025-10-23·4 shareholders·1 share class

Shareholder	Share class	Shares held	% of class
MR GARY JOHN FULLERopenregistry-h-mr-gary-john-fuller-62283e	ORDINARY	1,234	100.00%
DR MICHAEL LESLIE DEVINEopenregistry-h-dr-michael-leslie-devine-66a086	ORDINARY	0	0.00%
MR SIMON RICHARD TATTAMopenregistry-h-mr-simon-richard-tattam-5f105e	ORDINARY	0	0.00%
MRS RUTH SULLIVANopenregistry-h-mrs-ruth-sullivan-0149ab	ORDINARY	0	0.00%

ALPHA CONTROL SERVICES LTD

openregistry-gb-04355066·confirmation statement 2025-11-19·4 shareholders·1 share class

Shareholder	Share class	Shares held	% of class
ANDREW BUSHopenregistry-h-andrew-bush-3e8575	ORDINARY	300	30.00%
JONATHAN PAUL BUSHopenregistry-h-jonathan-paul-bush-981b43	ORDINARY	300	30.00%
RHIA BUSHopenregistry-h-rhia-bush-37eddb	ORDINARY	300	30.00%
NICK BUSHopenregistry-h-nick-bush-c67e5f	ORDINARY	100	10.00%

DANMEDICAL LIMITED

openregistry-gb-04604636·confirmation statement 2025-12-13·4 shareholders·1 share class

Shareholder	Share class	Shares held
DANMEDICAL HOLDINGS LIMITEDopenregistry-gb-16756726	ORDINARY SHARES A	296
DAVID WILLIAMSopenregistry-gb-17188997	ORDINARY SHARES A	0
IAN DRYSDALEopenregistry-h-ian-drysdale-e1a39c	ORDINARY SHARES A	0
KEELEY DRYSDALEopenregistry-h-keeley-drysdale-8fc5f9	ORDINARY SHARES A	0

MINDFIELD BIOSYSTEMS LTD.

openregistry-gb-05004610·confirmation statement 2021-12-30·4 shareholders·1 share class

Shareholder	Share class	Shares held
MINDFIELD BIOSYSTEMS LIMITEDopenregistry-gb-05004610	ORDINARY	1,000
ANKE GELSINGopenregistry-h-anke-gelsing-5e34b7	ORDINARY	0
MICHAEL FOERSTERopenregistry-h-michael-foerster-52814d	ORDINARY	0
NIKO ROCKENSUESSopenregistry-h-niko-rockensuess-9f3b09	ORDINARY	0

CLAIRAIR LIMITED

openregistry-gb-05676304·confirmation statement 2026-01-16·4 shareholders·1 share class

Shareholder	Share class	Shares held
KASPER LIopenregistry-h-kasper-li-3b1f61	ORDINARY	59
ALAN DONCASTERopenregistry-h-alan-doncaster-537dc9	ORDINARY	15
ARTHUR BURNLEYopenregistry-h-arthur-burnley-a86865	ORDINARY	13
YUNDONG CHENopenregistry-h-yundong-chen-d0678f	ORDINARY	13

VST GLOBAL LIMITED

openregistry-gb-06418987·confirmation statement 2022-09-12·4 shareholders·1 share class

Shareholder	Share class	Shares held
DANNY JONESopenregistry-h-danny-jones-b41e38	ORDINARY	100
KENNY JONESopenregistry-h-kenny-jones-b8d27b	ORDINARY	100
LEWIS DAVIESopenregistry-h-lewis-davies-3c2907	ORDINARY	50
RYAN JONESopenregistry-gb-OC342689	ORDINARY	0

M.D. DIAGNOSTICS LIMITED

openregistry-gb-06715726·confirmation statement 2022-02-02·4 shareholders·1 share class

Shareholder	Share class	Shares held
DANIEL QUIRKEopenregistry-h-daniel-quirke-7223fd	ORDINARY	67
CAMBRIDGE SENSORS LTDopenregistry-gb-02668392	ORDINARY	49
SARAH MACKINopenregistry-h-sarah-mackin-595088	ORDINARY	9
OISIN DUBH MCMANIGANopenregistry-h-oisin-dubh-mcmanigan-e10a64	ORDINARY	0

CITY OCCUPATIONAL LIMITED

openregistry-gb-06861486·confirmation statement 2024-04-08·4 shareholders·1 share class

Shareholder	Share class	Shares held
COL-AEGLIA INSTITUTE FOR OCCUPATIONAL VISIONopenregistry-h-col-aeglia-institute-for-occupational-vi-0b4d2f	ORDINARY	1,000
CITY, UNIVERSITY OF LONDONopenregistry-h-city-university-of-london-98b9fa	ORDINARY	0
MR JONATHAN ALISTER HARLOWopenregistry-h-mr-jonathan-alister-harlow-a6df5f	ORDINARY	0
PROF JOHN LAZAR BARBURopenregistry-h-prof-john-lazar-barbur-62847a	ORDINARY	0

RD BIOMED LIMITED

openregistry-gb-06979218·confirmation statement 2023-01-26·4 shareholders·1 share class

Shareholder	Share class	Shares held	% of class
MAXHEALTH INVESTMENTS LIMITEDopenregistry-h-maxhealth-investments-limited-27c330	ORDINARY SHARES	60	51.28%
HARVEY DETTMARopenregistry-h-harvey-dettmar-872bfa	ORDINARY SHARES	55	47.01%
MAAB INTERNATIONAL LIMITEDopenregistry-h-maab-international-limited-a81636	ORDINARY SHARES	2	1.71%
PETER DETTMARopenregistry-h-peter-dettmar-683a81	ORDINARY SHARES	0	0.00%

Each shareholder carries a Sophymarine OpenRegistry ID. Where the shareholder resolves unambiguously to a UK registered company the ID is openregistry-gb- plus its Companies House number, so the same company carries the same ID wherever it appears. Every other shareholder, including individuals, is given openregistry-h- plus the name as filed and a short hash of it.

A name-derived ID keys the name as recorded on the confirmation statement, not a verified individual. Two different people filed under the same name share one ID; one person filed inconsistently across companies receives more than one.

“% of class” is the holding as a proportion of the shares allotted in that class, from the statement of capital in the same filing. It is blank where the filing states no allotment for the class.

Not every UK company has a machine-readable shareholder list. 537 of the 1,578 companies in SIC 26511 do; companies without one are not listed here.

Source: UK Companies House CS01 confirmation statements and the Free Company Data product, parsed by OpenRegistry. Figures are as filed on the date shown against each company and are not restated for later share transfers.