Fourteen contractable
modules.

Update, 6 October 2026. What now has a firm date is mandatory B2B e-invoicing: Order HAC/1028/2026, in force since 6 October 2026, has started the deadlines of Royal Decree 238/2026 (twelve months for businesses with a turnover above €8 million and twenty-four for everyone else, i.e. October 2027 and October 2028 by our calculation). Spain's Ministry of Finance has announced that it will postpone VeriFactu to October 2028 so that it converges with e-invoicing, but that change is not yet in the BOE (Official State Gazette): until it is published, the dates set by Royal Decree-Law 15/2025 remain in force (1 January 2027 for Corporate Income Tax filers and 1 July 2027 for everyone else). We will update this page once the regulation is published.

Fourteen contractablemodules.

Summum Sistemas is a Partner of a3 · Wolters Kluwer: we implement, configure, migrate and integrate a3ERP for SMEs. Accounting, invoicing.

The a3 · Wolters Kluwer cloud suite for accounting firms: client portfolio, payroll and social security.

We implement AHORA Software, the modular Spanish ERP and CRM for industrial and service SMEs. Summum Sistemas, authorised distributors of AHORA.

The suite for professional practices, implemented by specialists and ready for Verifactu ahead of 2027.

Online invoicing adapted to Verifactu for freelancers and micro-businesses, implemented and supported by TeamSystem software specialists.

Professional accounting with Contasol: implementation, migration from ContaPlus and ongoing support for advisories and SMEs in Castilla y León and the Canary Islands.

Invoicing, accounting and payroll in the cloud, already adapted to Verifactu: Summum implements and maintains them.

The TeamSystem distribution and manufacturing ERP, implemented and supported by specialists based in Castilla y León.

Dynamics 365 Business Central as an ERP integrated with Outlook, Teams and Power BI. Native enterprise Copilot from day one.

Holded setup and configuration for small businesses: invoicing, accounting and projects, properly set up from the start.

Odoo 19 includes native AI. For small SMEs, Holded. Fast implementation, custom modules when warranted.

Odoo, Sage 200, Dynamics 365 BC and Holded for companies in Gran Canaria and Tenerife, with IGIC and the Canary SII settled before you start.

We serve clients from 15 to 250 users. Sage 200 for SMEs and X3 for mid-sized companies. Implementation, migration, enhancements, maintenance.

ERP for mid-size companies: multi-company, multi-currency, multi-site. Certified partner for Sage X3.

Outgrown Sage 50? We migrate your history to Sage 200 without losing data.

Get Factusol up and running, align your invoicing with Verifactu before 2027, and keep stock under control without the hassle.

Payroll and social security without friction: we implement Nominasol, migrate your historical data and support you whenever labour regulations change.

Invoice in the cloud and share your pre-accounting data with your advisers from day one, with no friction and no emails with attachments.

Specialists in implementing, migrating and supporting the entire TeamSystem/DELSOL ecosystem ahead of the Verifactu 2027 deadline.

The point-of-sale solution that completes the loop with Factusol: till, stock and invoicing with no double entry.

Approved digital logbook for winery and agri-food. With SIGPAC and the Regulatory Council, and support for the CAP declaration, with D.O.P. / I.G.P. and winery modules (SILICIE 2.0 and official records).

Batch-to-batch traceability, EC 178/2002 compliance and production under control: the ERP the food industry needs.

From the work order to the Verifactu invoice: sector-specific ERP for construction companies and SME developers that need real cost control and regulatory compliance.

From the warehouse to the invoice, on a single platform that manages stock, routes and Verifactu compliance without gaps.

From the manufacturer's part number to the priced delivery note: cross-references between brands, consignment stock at the workshop and returns that add up.

From the POS to accounting, on a single platform that is Verifactu-compliant and manages allergens from day one.

We implement the sector-specific ERP for your store or chain: real-time stock, integrated POS, web orders and e-invoicing.

Track which projects are profitable, invoice hours without errors and make decisions based on real data — not outdated spreadsheets.

Records, clinical history and billing for clinics. Odontogram for dental, vouchers and treatment tracking for physiotherapy, photography for aesthetics, multi-clinic layer.

When the sector does not fit a generic SaaS: winery, rural hospitality, B2B auxiliary industry, agri-food with designation. Built on sector know-how.

Real protection for your business, using existing public funds and a team that handles every step of the process from start to finish.

We implement the technical security measures of ENS Annex II (RD 311/2022) using MAGERIT/PILAR risk analysis and CCN tools: hardening, monitoring.

We technically implement the ENS (RD 311/2022) in Burgos: MAGERIT risk analysis, CCN tools (PILAR, INES).

Summum Sistemas implements the technical requirements of the ENS (RD 311/2022) for suppliers of the Gobierno de Canarias, Cabildo de Gran Canaria

Technical implementation of the ENS (RD 311/2022) for suppliers of the Diputación de León, Ayuntamiento de León and ULE: MAGERIT analysis, CCN tools

We technically implement the ENS (RD 311/2022) in Palencia for suppliers of the Diputación and Ayuntamiento de Palencia: MAGERIT risk analysis

Summum Sistemas supports suppliers to the Diputación, Ayuntamiento and USAL with ENS technical implementation: MAGERIT risk analysis.

We implement the technical measures of the ENS (RD 311/2022) in Tenerife: MAGERIT risk analysis, CCN tools (PILAR, INES), hardening and operational

Summum Sistemas delivers the technical implementation of Spain's ENS (RD 311/2022) for suppliers of the Junta de Castilla y León.

Summum Sistemas delivers the technical implementation of Spain's ENS (RD 311/2022) for suppliers of the Comunidad de Madrid.

Summum Sistemas delivers the technical implementation of Spain's ENS (RD 311/2022) for suppliers of the Generalitat de Catalunya.

We deliver the technical implementation of Spain's ENS (RD 311/2022) in Seville: MAGERIT/PILAR risk analysis.

Summum Sistemas delivers the technical implementation of Spain's ENS (RD 311/2022) for suppliers of the Generalitat Valenciana.

Summum Sistemas delivers the technical implementation of Spain's ENS (RD 311/2022) for suppliers of the Government of Aragón.

Summum Sistemas delivers the technical implementation of Spain's ENS (RD 311/2022) for suppliers of the Basque Government.

Summum Sistemas delivers the technical implementation of Spain's ENS (RD 311/2022) for suppliers of the Junta de Andalucía.

Adapt your ERP to Verifactu and B2B e-invoicing before the obligation kicks in — penalties included.

The data layer that connects ERP, CRM, web and operations in a single dashboard. Postgres / ClickHouse / dbt as an open stack.

Enterprise CRM implementation with migration from legacy systems, ERP integration, and scoring rules and pipeline automation.

Summum Sistemas distributes Microsoft Power BI: we build dashboards.

Cloud designed and operated by engineers, not salespeople. Terraform as standard. Low RTO and RPO, depending on architecture.

Migrate your infrastructure to Azure, AWS or Google Cloud without service disruption and with a phased plan tailored to your business.

Email, collaboration and cloud security: Microsoft 365 deployed and configured so your team can hit the ground running from day one.

For companies that do not want to build an in-house IT team but need more than a generic provider. Fixed monthly fee; we respond promptly during business hours.

We build software when your operations do not fit a SaaS. Microservices and DevOps when the problem justifies it. Fortnightly sprints with a live demo.

Orders, invoices and incidents: your customer handles it themselves; your team focuses on what matters.

An online store that integrates with your ERP, complies with Verifactu and converts from day one without relying on anyone external to manage it.

Stock, orders and invoicing synchronised between your online store and your ERP — no manual entry, no channel errors.

Fewer manual hours, fewer errors: we automate your processes with Power Platform and RPA so your team can focus on what matters.

Summum cluster (Sistemas + IA). On top of Sage / Dynamics / Odoo / Holded we deploy an operational copilot: invoices, reconciliation, customer support, prospecting. Timeline depends on scope.

Kit Consulting, call closed: what the voucher funded (up to €24,000) and how to deliver and justify an agreement already signed.

Immutable and traceable digital time tracking, with remote access for Labour Inspection. Shift schedules, leave management, employee portal and payroll integration.

Fourteen contractable
modules.