Registered office: 
Plaza Garellano 17, local d
48013, Bilbao
Development center: 
C/Modesto Lafuente 46,
28003, Madrid
Contact:
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We are an IT engineering and consultancy company with a vocation for the development and implementation of technologies specialized in the fight against the underground economy, particularly tax fraud.

Our services

We have a portfolio of professional services with which we permanently accompany our corporate clients.

Solutions

intelligence©

Planning, selection, and management of alerts

analytics ©

Inspection, limited verification and collection inspection

discovery ©

Selection, inspection and collection inspection

mining ©

Data mining for automated selection

management ©

Coordination and management

Company

We work to be a benchmark in the creation of solutions and the deployment of technologies focused on the fight against tax fraud and the underground economy.

We are a strategic technology partner and work closely with our clients to help them achieve their digital transformation objectives.

We are committed to quality of service and technical and financial stability in a changing sector dominated by large operators.

To develop specialized software applications and provide associated services that generate high added value for our corporate clients in the medium and long term.

To participate in highly complex projects that require us to be at the forefront and constantly renew our fiscal and technical know-how.

To contribute to the development and professional fulfilment of our intellectual capital, encouraging research and innovation in our professional team.

Commercial independence and autonomy in the selection of technologies that support our solutions as a differential value.

Work in multidisciplinary teams for the integration of knowledge, with a focus on results and customer as well as user satisfaction.

Trust as a main asset together with ethical conduct and strict confidentiality in our day-to-day work.

Main challenges

2000
2007
2009
2011
2012
2013
2014
2015
2016
2017
2019
2021
2024

2000

SENDA © comes about as a merger of applications developed by the founding partner to support his work as an inspector at the AEAT

2007

The founding partner leaves the AEAT and founds SIDAF with headquarters in Bilbao to market the solution (software). The implementation of SENDA © begins in the HFB

2009

Methodological adaptations progress and the deployment of SENDA© in the HFB is successful. IT audit techniques are introduced in the HFA

2011

HTN joins the cultural change in the fight against tax fraud. New professionals join the firm

2012

Bizkaia and Araba publish very positive data on tax fraud detected. The SENDA conferences are established as a forum for debate on specialized IT

2013

HFG-IZFE is interested in the added value of SENDA ©’s import and analysis functionalities. SIDAF approves its strategic expansion plan

2014

The first SENDAUDIT © development centre opens in Madrid. The firm moves towards a knowledge organisation and launches its first website

2015

HFB-LANTIK are pioneers in contracting SENDAUDIT Analytics ©. Associated professional services increase turnover (€1M)

2016

Araba-CCA and Navarra-TRACASA renew their trust in SENDAUDIT ©. SPRI endorses the R&D in the new project

2017

SIDAF celebrates its 10th anniversary by incorporating the tenth person to its professional team, which totals 9 different university disciplines

2019

The HFB reinforces its technological commitment by choosing the SENDAUDIT intelligence © and SENDAUDIT management © solutions with the “big data science” challenge on the horizon

2021

The implementation of the SENDAUDIT analytics © solution begins at the HFG. The portfolio of associated services and the professional team are successfully adapted to the healthcare situation

2024

Business operations kick-off in the new Customer Center and company headquarters in Bilbao. SIDAF reformulates its strategic plan to integrate new solutions and address new markets.

 

Last news

La Diputación Foral de Bizkaia aprueba el Plan de Lucha contra el Fraude Fiscal para 2024

La Hacienda Foral de Bizkaia ha aprobado el Plan de Lucha contra el Fraude Fiscal para el año 2024 en...

La Hacienda Foral regularizó el año pasado 414 millones de euros en más de medio millón de actuaciones contra el fraude fiscal

Las actuaciones se han dirigido a prevenir el fraude, obtener y analizar información tributaria de la y los contribuyentes y...

Álava detecta 95,5 millones de fraude fiscal en cerca de 4.000 inspecciones realizadas

Han recuperado el equivalente al 15% del presupuesto de la Diputación Foral. Los inspectores de Hacienda de la Diputación de...

Hacienda traslada a la Comisión de Lucha contra el Fraude el resultado de sus actuaciones en 2022 (Navarra)

El pasado año se regularizaron 192 millones de euros de fraude fiscal. Hacienda Foral de Navarra (HFN) ha convocado una...

La Diputación Foral de Gipuzkoa descubrió 172,6 millones de euros de fraude fiscal en 2022

Hacienda realizó el año pasado 90.020 actuaciones en la labor contra el fraude fiscal, según ha explicado en la Comisión...

La lucha contra el fraude fiscal recaudó 16.675 millones en 2022: es un 1,3 % menos que el año anterior

Las actuaciones de lucha contra el fraude fiscal permitieron recaudar 16.675 millones de euros en 2022, un 1,3 % menos que el año...

Hacienda lanza un sistema para detectar entidades que hacen deducción fraudulenta de gastos personales

La Agencia Tributaria (AEAT), del Ministerio de Hacienda, tiene un arma más en su arsenal para detectar el fraude fiscal. A elementos como...

La Diputación Foral de Gipuzkoa descubrió 172,6 millones de euros de fraude fiscal en 2022

La Hacienda foral de Gipuzkoa descubrió y sacó a la luz el pasado año 172,6 millones de euros como consecuencia de sus actuaciones en...

Álava detecta 95,5 millones de fraude fiscal en cerca de 4.000 inspecciones realizadas

Los inspectores de Hacienda de la Diputación de Álava detectaron 95,5 millones de euros de fraude fiscal durante 2022, es...

La Hacienda Foral de Bizkaia regularizó el año pasado 414 millones de euros en más de medio millón de actuaciones contra el fraude fiscal

Las actuaciones se han dirigido a prevenir el fraude, obtener y analizar información tributaria de la y los contribuyentes y...

Our clients

Investing in technology to fight fraud pays off economically and socially. Today, they rely on our solutions …

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