Oficina de Bilbao: 
Plaza Garellano 17, Dep. D
48013, Bilbao
Oficina de Madrid: 
C/Modesto Lafuente 46, Dep. 3
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 delivering high-quality service and maintaining technical and financial stability in a dynamic sector dominated by major players, where we stand out through greater specialization.

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 selecting the technologies that support our solutions, a value that sets us apart from other players in the TaxTech sector.

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

Ethical conduct and strict confidentiality in our day-to-day business are the main assets that support the trust placed in us by our corporate clients and our professional relationships.

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

Start of operations at the new office in Bilbao. SIDAF reformulates its strategic plan to integrate new solutions and target new markets.

 

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Our clients

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

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