CALIX NETWORKS UK LTD
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Cash
£1.6m
-0.7% vs 2024
Net assets
£6.4m
+7.9% highest in 3 filed years
Employees
21
-12.5% lowest in 3 filed years
Profit before tax
£310k
-4.5% lowest in 3 filed years
Net assets
3-year trend · vs Telecommunications median
Accounts
3-year trend · Δ = latest vs prior filed period · latest reflected 2025-12-31
| Metric | Trend | 2023-12-31 | 2024-12-31 | 2025-12-31 | Δ vs prior |
|---|---|---|---|---|---|
| Turnover | £6,966,255 | £6,394,303 | £6,342,621 | -0.8% | |
| Operating profit | £331,813 | £304,491 | £302,030 | -0.8% | |
| Profit before tax | £336,371 | £324,785 | £310,297 | -4.5% | |
| Net profit | £273,595 | £194,620 | £224,172 | +15.2% | |
| Cash | £1,528,381 | £1,562,936 | £1,552,235 | -0.7% | |
| Total assets less current liabilities | £5,400,714 | £5,894,652 | £6,360,593 | +7.9% | |
| Net assets | £5,400,714 | £5,894,652 | £6,360,593 | +7.9% | |
| Equity | £5,400,714 | £5,894,652 | £6,360,593 | +7.9% | |
| Average employees | 23 | 24 | 21 | -12.5% | |
| Wages | £4,186,646 | £3,884,403 | £3,823,177 | -1.6% | |
| Directors' remuneration | — | — | — | — |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. The Δ column is the change from the prior filed period as a percentage of |prior|; lines a company doesn't report show —. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-12-31 | 2024-12-31 | 2025-12-31 |
|---|---|---|---|---|
| Operating margin | 4.8% | 4.8% | 4.8% | |
| Net margin | 3.9% | 3.0% | 3.5% | |
| Return on capital employed | 6.1% | 5.2% | 4.7% | |
| Gearing (liabilities / total assets) | 15.0% | 10.4% | 7.0% | |
| Current ratio | 6.68x | 9.61x | 14.19x |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Auditor
- KPMG LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The financial statements have been prepared on a going concern basis which the Directors consider to be appropriate for the following reasons. The Company has been profitable and expects to continue to be profitable.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
3 active · 14 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| CSC CLS (UK) LIMITED | Corporate Secretary | 2025-07-21 | — | — |
| GEMETTI, Thomas Martin | Director | 2025-05-01 | Nov 1971 | American |
| SINDELAR, Cory | Director | 2017-09-11 | Feb 1969 | American |
Show 14 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| ATKINS, William | Secretary | 2016-02-08 | 2017-05-19 |
| MEKHALFA, Sabrina | Secretary | 2015-06-30 | 2016-02-08 |
| QUINLAN, Denis | Secretary | 2011-02-10 | 2015-06-30 |
| TOM, Suzanne | Secretary | 2017-01-01 | 2021-11-19 |
| CORPORATION SERVICE COMPANY (UK) LIMITED | Corporate Secretary | 2017-02-22 | 2025-07-21 |
| ASHBY, Michael | Director | 2011-03-09 | 2011-07-08 |
| ATKINS, William | Director | 2016-02-08 | 2017-05-19 |
| BRANNON, Kelyn Joann | Director | 2011-02-10 | 2011-03-05 |
| LOCKHART, Andy | Director | 2011-07-08 | 2016-12-05 |
| MEKHALFA, Sabrina, Mrs. | Director | 2014-05-30 | 2016-02-08 |
| QUINLAN, Denis Jerome | Director | 2012-11-01 | 2015-05-30 |
| STATHIS, Pete | Director | 2013-02-01 | 2014-05-30 |
| TOM, Suzanne Pamela | Director | 2016-12-05 | 2017-09-11 |
| WEINGARTH, Roger | Director | 2011-02-10 | 2013-02-01 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Calix, Inc. | Corporate entity | Shares 75–100% | 2021-11-19 | Active |
| Ms Suzanne Pamela Tom | Individual | Appoints directors | 2016-12-05 | Ceased 2021-11-19 |
Filing timeline
Last 20 of 82 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-09-28 | AA | accounts | Accounts with accounts type full | |
| 2026-03-10 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2026-01-14 | CH01 | officers | Change person director company with change date | |
| 2025-10-02 | CH01 | officers | Change person director company with change date | |
| 2025-10-01 | CH01 | officers | Change person director company with change date | |
| 2025-09-30 | PSC05 | persons-with-significant-control | Change to a person with significant control | |
| 2025-09-25 | AA | accounts | Accounts with accounts type full | |
| 2025-08-13 | AP04 | officers | Appoint corporate secretary company with name date | |
| 2025-08-13 | AD01 | address | Change registered office address company with date old address new address | |
| 2025-08-13 | TM02 | officers | Termination secretary company with name termination date | |
| 2025-05-06 | AP01 | officers | Appoint person director company with name date | |
| 2025-02-10 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-09-21 | AA | accounts | Accounts with accounts type full | |
| 2024-02-12 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-09-27 | AA | accounts | Accounts with accounts type full | |
| 2023-02-22 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-01-19 | PSC07 | persons-with-significant-control | Cessation of a person with significant control | |
| 2023-01-19 | PSC02 | persons-with-significant-control | Notification of a person with significant control | |
| 2022-09-30 | AA | accounts | Accounts with accounts type full | |
| 2022-07-26 | TM02 | officers | Termination secretary company with name termination date |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 5
- Capital events
- 0
- Officers appointed
- 0
- Officers resigned
- 0
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.