London Stock Exchange: SDI

How many employees work at SDI Group?

SDI Group Plc (SDI) has approximately 511 total employees worldwide as of December 2025, according to Revelio Labs workforce intelligence data. SDI Group's total headcount has grown 1.0% from 506 employees in 2023 to 511 in 2025.

Data source: Revelio LabsCoverage: Global workforce, 2023–2026Published June 2026

SDI Group is hiring

Is SDI Group hiring right now?

Yes, SDI Group is actively hiring. SDI Group had 2 active job postings in 2025, a 40.0% decline from 2024 see job openings & hiring trends.

About SDI Group's Workforce

SDI Group Plc (SDI) is an Electronics Manufacturing company that employs 511 people worldwide as of December 2025. It is the 11th-largest by headcount among its peers. Founded in 2007, the company is headquartered in Cambridge, United Kingdom and trades on the London Stock Exchange.

SDI Group's workforce has grown 1.0% from 2023 to 2025, up 1.1% year over year in 2025. Its workforce is concentrated most in the United Kingdom (70.6%), followed by Australia (7.1%) and Portugal (4.4%), with India, its fastest-growing location.

SDI Group's largest functional groups are Finance and Operations (44.7%), Engineering (30.8%), and Sales and Marketing (24.5%), with Engineering growing fastest (up 3.0%). Median employee tenure is 5.0 years. The average salary is $63,268, ranging from a median of $90,000 in Northern America to $12,000 in South-Eastern Asia.

SDI Group's active job postings fell 40.0% in 2025 to 2, with new postings per month cooling from 9 in 2023 to 5 in 2025. Overall employee sentiment is neutral but improving.

Sourced from Revelio Labs workforce data.

As of December 2025

SDI Group
workforce metrics

Headcount

511

1.1% YoY

Avg. Salary

$63.3k

2.0% YoY

Tenure

5.0yr

0.2yr YoY

Growth Rate

1.1%

3.8pts YoY

Hiring Rate

Attrition Rate

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Interactive chart of SDI Group annual worldwide employee count from 2023 to 2025.
  • SDI Group had 511 employees in 2025, a 1.1% increase (+5) from 2024.
  • SDI Group had 506 employees in 2024, a 2.7% decline (-13) from 2023.
  • SDI Group had 519 employees in 2023, a 2.4% increase (+12) from 2022.

SDI Group's total workforce has grown from 506 employees in 2024 to 511 in 2025. SDI Group's headcount peaked at 524 in 2024 before declining in 2024 and recovering through 2025.

SDI Group Plc — quarterly employee count (20232025)

YearQtrEmployeesYoY ChangeYoY %
2025Q4511+5+1.1%
2025Q3517+6+1.2%
2025Q2518-6-1.2%
2025Q1509-9-1.7%
2024Q4506-13-2.7%
2024Q3511-13-2.4%
2024Q2524+14+2.8%
2024Q1518+12+2.2%
2023Q4519+12+2.4%
2023Q3524+30+5.9%
2023Q2510+23+4.6%
2023Q1506+8+1.6%

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The United Kingdom accounts for the largest share of SDI Group's global workforce with approximately 71% of total employees, followed by Australia and Portugal. SDI Group's headcount in India is growing fastest among its major locations, up 14.1% year over year in 2025.

SDI Group employees by country — 2025

CountryEmployees% of TotalYoY %
United Kingdom36270.6%+0.4%
Australia377.1%+0.0%
Portugal224.4%-4.4%
United States224.4%-2.7%
India132.5%+14.1%
Singapore81.5%+0.0%
Bulgaria61.2%+0.0%
Indonesia61.1%+0.0%
Malaysia40.8%+0.0%
Senegal30.7%+0.0%

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SDI Group's largest employee groups are Finance and Operations (44.7%), Engineering (30.8%), and Sales and Marketing (24.5%).

SDI Group employees by department — 2025

DepartmentEmployees% of TotalYoY %
Finance and Operations22844.7%-0.8%
Engineering15730.8%+3.0%
Sales and Marketing12524.5%-1.0%

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SDI Group's average employee salary is $63,268 globally. Employees in Northern America receive the highest compensation, with median pay approximately 1.4x the global average. Pay is lowest in South-Eastern Asia, at a median of $12,000.

SDI Group median employee salary by region — 2025 (USD)

RegionMedian Salary
Northern America$90,000
Pacific Islands$64,000
Northern Europe$57,000
Sub-Saharan Africa$54,000
Western Europe$52,000
Eastern Europe$31,000
Southern Europe$26,000
Eastern Asia$22,000
South-Eastern Asia$12,000
Southern America$9,000
Southern Asia$5,000

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Interactive chart of SDI Group annual active job postings from 2023 to 2025.
  • SDI Group had 2 active job postings in 2025, a 40.0% decline (-1) from 2024.
  • SDI Group had 3 active job postings in 2024, a 120.0% decline (-9) from 2023.
  • SDI Group had 12 active job postings in 2023, a 100.0% increase from 2022.
  • Hiring velocity in 2025: 5 new roles/month, down from 7 in 2024 and 9 in 2023. New metric

SDI Group's hiring is slowing: active job postings fell 40.0% in 2025 to 2, with new postings per month cooling from 9 in 2023 to 5 in 2025.

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Revelio Labs tracks employee sentiment across SDI Group's workforce based on public professional data. Overall sentiment is neutral and has improved year over year in 2025.

Overall

NegativePositive

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How fast is SDI Group growing?
In 2025, SDI Group's headcount grew 1.1% to 511 employees, up from 506 in 2024.
Where are SDI Group employees located?
Most SDI Group employees are based in the United Kingdom (70.6% of headcount), followed by Australia and Portugal.
What is the average salary at SDI Group?
The average employee salary at SDI Group is approximately $63.3k per year.
How many people does SDI Group hire per year?
In 2025, SDI Group opened roughly 60 new roles — about 5 per month.
When was SDI Group founded and where is it headquartered?
SDI Group was founded in 2007 and is headquartered in Cambridge, United Kingdom.

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