What Aim-Tti does

Aim-TTi, formally Thurlby Thandar Instruments Ltd., is a privately held UK-based designer and manufacturer of precision electronic test and measurement instruments, headquartered in Huntingdon, Cambridgeshire. Established with over three decades of operating history and 101–250 employees, the company produces a broad portfolio spanning DC power supplies (CPX, QL, PL/PLH, QPX, TSX, MX Series), electronic loads (LD400, LDH400), source measure units (SMU4000), function and arbitrary waveform generators (TGF4000, TGP3100, ATG), RF signal generators (TGR205x, TGR6000), bench multimeters (ADM, 1908), frequency counters (TF900), current probes, and spectrum analyzers. Differentiated proprietary technologies include PowerFlex/PowerFlex+ variable voltage/current regulation, a 4-quadrant SMU architecture with 0.015% basic accuracy and 6½ digit resolution, true variable-clock arbitrary waveform generation at 800MS/s, and integrated digital modulation. Most instruments ship with USB, LAN (LXI-compliant), and RS232 interfaces as standard, with optional GPIB, and are supported by free Windows automation software (Test Bridge, Test Bridge SMU, Waveform Manager Plus).

The company monetizes primarily through unit-priced hardware sales, supplemented by accessories, options (e.g., GPIB interfaces, SMU-LINK synchronization accessory), and rack-mount kits. End prices range from approximately €345 for the entry-level ATG1005 function generator to over €5,000 for flagship SMU4201 source measure units and the TGR6000 6GHz RF signal generator, positioning Aim-TTi in a "measurably better value" mid-market tier versus premium T&M vendors. Distribution is global via a network of carefully selected distributors and partners, with a dealer locator on the company website, dedicated regional resellers such as Saelig in the US, and direct quotation-based sales through aimtti.com.

Aim-TTi serves three primary use-case segments: professional engineering and research laboratories (precision characterization, RF testing, power supply testing, waveform generation), educational institutions (cost-effective teaching instruments), and manufacturing/quality assurance environments (programmable bench and system power supplies, electronic loads, and SMUs for production test). Pricing is uniform unit-based, with regional variation by distributor and optional enterprise quotation for volume orders. The company operates a 37-hour, 4-day working week from its single Huntingdon site, with no disclosed funding, no parent company, and no public listing.

Name

Aim-Tti

Legal name

Thurlby Thandar Instruments Ltd.

Website

https://aimtti.com

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

101–250 employees

Short description

Aim-TTi is a UK-based private manufacturer of precision electronic test and measurement instruments, including DC power supplies, source measure units, function and RF signal generators, electronic loads, and multimeters, sold globally via distributors to engineering, educational, and manufacturing customers.

Ownership category

akta.pro rank

Product category

Electronic Test and Measurement Instruments

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Test & Measurement Equipment (Oscilloscopes, DAQ, signal analyzers, calibration benches) (IMAGAFAC)

akta.pro secondary industry

Test, Measurement & Calibration Equipment Manufacturing Services (ATE, DAQ, metrology electronics) (IMAGAGAH)

Keywords

• Electronic test equipment
• DC power supplies
• Function generators
• Source measure units
• RF signal generators

Headquarters

HQ city

Huntingdon

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Electronic Test and Measurement Instrument Sales: Aim-TTi designs and manufactures a wide range of electronic test and measurement instruments sold globally through distributors and direct channels. Products are sold as standalone hardware units with various interface options, and as complete solutions including accessories, software, and firmware. The company also generates revenue from firmware/driver updates and application support resources provided free or bundled with products.
2. Software and Accessory Add-ons: Revenue is generated from bundled and optional software (Test Bridge, Test Bridge SMU, Waveform Manager Plus), rack mount kits, interface options (GPIB), and accessories. SMU Link accessory is sold as an optional add-on. Some accessories and options carry separate price points above the base instrument.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Aim-TTi designs, manufactures, and distributes precision electronic test and measurement instruments for engineering, research, education, and electronics manufacturing applications. The company sells DC power supplies, electronic loads, source measure units, function/arbitrary/pulse generators, RF signal generators, multimeters, frequency counters, current probes, and spectrum analyzers, along with bundled and free control software and accessories, primarily through a global distributor network and direct quotation-based sales.

Product overview

Aim-TTi (Thurlby Thandar Instruments) is a manufacturer of electronic test and measurement instruments. The product portfolio includes: DC Power Supplies (QPX, QL, PL/PLH, CPX, TSX, MX Series), Electronic Loads (LD400/LDH400), Source Measure Units (SMU4000), Waveform Generators (TGF4000 arbitrary function generators, TGP3100 pulse generators, ATG Series DDS function generators), RF Signal Generators (TGR205x, TGR6000), Multimeters (ADM Series, 1908 Series), Frequency Counters (TF900 Series), Current Probes, Spectrum Analyzers, Software (Test Bridge, Test Bridge SMU, Waveform Manager Plus), and accessories (Rack Mounts, SMU Link). Products are controlled via USB, LAN (LXI), RS232, and optional GPIB interfaces with SCPI compatibility. Free control software (Test Bridge) enables automation of up to four instruments.

Differentiator

Problem solved

Functional benefit

Products and services

• SMU4000 Series Source Measure Units Four-quadrant PowerFlex Source Measure Units available in 20V and 200V versions, offering 0.015% basic accuracy with 6½ digit resolution, up to ±3.15A, 25W power envelope, and measurement speeds up to 200µs (5k/s), for precision characterization of components.
• TGF4000 Series Dual Channel Arbitrary Function Generators Dual channel arbitrary function generators with models from 40MHz to 240MHz, 800MS/s sample rate, 16-bit resolution, precise channel-to-channel phase control at 0.001° resolution, and built-in arbitrary waveform generation for general waveform synthesis.
• TGR205x Series RF Signal Generators RF signal generators in 1.5GHz and 3GHz models with phase noise <-117dBc/Hz, amplitude range -127dBm to +13dBm, comprehensive AM/FM/PM modulations, and optional digital modulation (ASK/FSK/PSK family via U01 option).
• TGP3100 Series Pulse and Universal Generators True pulse and universal generators in 25MHz or 50MHz, single or dual channel models combining pulse, noise, and function/arbitrary generator capabilities with a minimum rise time of 5ns.
• QPX Series Bench/System DC Power Supplies Bench/system DC power supplies with PowerFlex/PowerFlex+ regulation offering single or dual outputs up to 1200W, with voltage/current combinations up to 80V and 50A, available with or without digital remote interfaces (USB, LAN/LXI, RS232, optional GPIB).
• QL Series II Precision Linear Regulated DC Power Supplies Bench/system precision linear regulated DC power supplies with digital control and single or triple outputs from 105 to 242W, featuring very high precision, very low noise, and bus programming via USB/RS232/LAN (LXI)/GPIB.
• PL/PLH Series Linear Regulated DC Power Supplies Linear regulated DC power supplies with single, dual or triple outputs from 48 to 242W; PLH Series provides higher voltage options (120V or 250V); available with or without remote interfaces.
• CPX Series Bench/System/ATE Programmable DC Power Supplies Bench/system/ATE programmable DC power supplies with PowerFlex design, single or dual outputs from 360 to 840W, up to 60V and 20A per output; isolated outputs can be wired in series or parallel for higher voltage or current.
• TSX Series Bench/System Silent DC Power Supplies Bench/system silent DC power supplies with fan-less convection cooling, single output up to 360W, available in 18V/20A or 35V/10A models with optional USB/RS232/LAN (LXI) interfaces.
• LD400/LDH400 Series Electronic DC Loads Electronic DC loads for testing DC power sources: LD400 80V/80A/400W and LDH400 500V/16A/400W models with constant current, resistance, conductance, voltage and power modes and full bus control.
• TGR6000 6GHz RF Signal Generator 6GHz RF signal generator covering 10MHz to 6000MHz with ±1ppm frequency stability, -110dBm to +7dBm amplitude, fast stepping sweep, and full remote control via RS232/USB/LAN/GPIB.
• ADM Series Digital Bench Multimeters 5½ digit digital bench multimeters with 0.02% accuracy and 1µV resolution, bar chart/histogram/statistics displays, 9 measurement modes including frequency and capacitance, in a compact aluminium case.
• 1908 Series Dual Measurement Bench Multimeters 5.5 digit dual measurement bench multimeters with USB interface, dual display, mains power or internal rechargeable batteries, True RMS AC, frequency, capacitance, and temperature measurements.
• ATG Series DDS Function Generators DDS function generators with 1mHz to 5MHz range, 1mVpp-10Vpp amplitude, intuitive touchscreen operation, linear/logarithmic sweep, and USB remote interface; targeted at educational laboratory use.
• TF900 Series Bench/Portable Universal Counters Bench/portable universal counters with USB interface, available in 3GHz or 6GHz models with 0.001mHz resolution, DC or AC coupling, and internal rechargeable batteries for portable use.
• Test Bridge Software Free Windows automation software that controls up to four Aim-TTi products and records measurement results, supporting USB, RS232, and Ethernet connections with up to 16 channels for control and measurement.
• Test Bridge SMU Software Free Windows application for controlling and managing results from Aim-TTi SMU4000 Series Source Measure Units, including support for synchronized operation when linking two SMUs via the SMU Link accessory.
• Waveform Manager Plus Software Windows-based software for creation, editing, and management of arbitrary waveforms, supplied as standard with TTi generators that have arbitrary waveform capability.
• Aim-TTi Rack Mount Kits Rack mount kits for Aim-TTi equipment, including RM50A, RM200A, RM300A, RM410, RM460, and RM1242/4 models, plus blanking plates, for integrating bench instruments into 19-inch rack systems.
• SMU Link Synchronization Accessory Optional accessory that links two SMU4000 Series units together for synchronous operation, enabling more complex characterization and testing scenarios.

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

One partnership is on record.

• SaeligcoreChannel Partner/ Reseller/ DistributorSaelig is the authorized distributor for Aim-TTi products in the US market. Saelig handles marketing, sales, and distribution of Aim-TTi instruments including the ATG1005 function generator to customers in the United States.

Scale indicators3 records

Recent moves6 records

Expansion highlights3 records

Direct peers

• Rigol Technologies: Chinese-headquartered manufacturer of oscilloscopes, spectrum analyzers, RF signal generators, function/arbitrary generators, and DC power supplies. Direct mid-market competitor to Aim-TTi across nearly all bench T&M categories, with aggressive value-tier pricing.
• Siglent Technologies: Manufacturer of digital oscilloscopes, spectrum analyzers, RF signal generators, function/arbitrary generators, and DC power supplies. Direct competitor in the sub-€5,000 bench T&M segment with overlapping product categories to Aim-TTi's power supplies, function generators, and RF generators.
• GW Instek (Good Will Instrument): Taiwanese manufacturer of oscilloscopes, spectrum analyzers, function generators, DC power supplies, and electronic loads. Closest publicly-listed comparable in size, product breadth, and value-tier positioning to Aim-TTi.
• B&K Precision: US-based mid-market manufacturer of DC power supplies, function/arbitrary generators, electronic loads, oscilloscopes, and digital multimeters. Operates in near-identical niche as Aim-TTi - bench/ATE programmable instruments at value price points - making it the most direct US comparable.
• Chroma ATE: Taiwanese manufacturer specializing in programmable DC power supplies, electronic loads, and test & measurement instruments - directly overlaps with Aim-TTi's QPX, LD400, and CPX product lines for production ATE customers.

Broad incumbents

• Keysight Technologies: Global premium T&M incumbent and Agilent Technologies spinout covering oscilloscopes, spectrum/network analyzers, signal sources, and bench instruments including the SMU/parametric-test category. Aim-TTi positions explicitly against Keysight on value-per-spec.
• Rohde & Schwarz: German premium T&M manufacturer dominating spectrum analysis, RF signal generation, and oscilloscopes. Competes with Aim-TTi in RF signal generators (TGR205x/TGR6000 vs R&S SMB/SMC families) and spectrum analyzers at the high end.
• Tektronix: US premium oscilloscope, spectrum analyzer, and signal-source manufacturer owned by Fortive; its Keithley subsidiary is a direct AIM-TTi competitor in source measure units (4200-SCS vs SMU4000) and precision multimeters.
• Yokogawa Test & Measurement: Japanese incumbent in power measurement, oscilloscopes (DLM/DL), and precision source/measure instrumentation. Comparable in industrial-grade precision power supplies and SMU/SourceMeasure to Aim-TTi's SMU4000 and QPX series.
• Fluke (Fortive): Industrial test and measurement incumbent including Fluke handheld multimeters and bench DMMs. Overlaps with Aim-TTi's ADM and 1908 bench multimeters in professional and electrical-contractor segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/aim_tti

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Aim-Tti