SSolidinput
Strategy, marketing, and production software

Solidinput

Digital strategy and full-stack execution for businesses that need better acquisition, sharper operations, and software that can run in production.

Discuss a projectView selected work
10+ yrs
Marketing and product execution
3 live
Production platforms showcased
EU/Nordic
B2B market focus

Services

Strategy that stays connected to implementation.

Solidinput combines commercial thinking with hands-on software delivery, so marketing, product, and operations can move in the same direction.

Commercial first

Work starts with the business case, then moves into the channels, systems, and product decisions that support it.

Built end to end

Strategy, implementation, integrations, launch, and iteration stay connected instead of being handed between separate vendors.

Measured outcomes

Projects are shaped around visible progress: qualified traffic, cleaner operations, faster workflows, and maintainable systems.

Growth

Digital Marketing

Search Strategy

Technical SEO, content structure, and search intent work aimed at qualified demand instead of vanity traffic.

Performance Marketing

Campaigns, landing pages, and reporting loops built around clear acquisition goals and usable numbers.

Conversion Performance

Core Web Vitals, page speed, and conversion improvements that make existing demand easier to capture.

Lead Generation

Practical funnel design, offer positioning, and follow-up systems for service businesses and B2B teams.

Systems

Software Development

Production Web Apps

Full-stack applications with clean interfaces, reliable data models, authentication, and real workflows.

SaaS Platforms

Subscription products, portals, and multi-tenant systems with billing, permissions, and operational tooling.

CRM & Business Tools

Internal systems that replace spreadsheets, reduce manual work, and give teams one place to operate.

API Integrations

Resilient connections between payment, CRM, compliance, email, and back-office platforms.

Selected work

Production applications, not concept pieces.

A closer look at the operational systems behind the screenshots: business workflows, user roles, payments, compliance needs, and maintainable interfaces.

Each project is shown through the practical problem it solves, the production concerns handled, and the role Solidinput played from strategy through implementation.
Din Firmaadresse product interface

Featured case

Din Firmaadresse

Strategy, UX, full-stack development

Virtual office platform for Danish businesses

Problem

Danish businesses needed a self-service virtual office signup flow with compliance and recurring billing.

Outcome

Live platform with subscriptions, customer dashboard, KYC/AML handling, mail workflows, and Stripe billing.

  • Self-service subscription and checkout flow
  • Customer dashboard with account and mail workflows
  • Compliance-aware onboarding for Danish business registrations
Subscription managementKYC/AML complianceMail handling
Next.jsSupabaseStripeTailwind
Botanica CRM screenshot

Work 01

Botanica CRM

Product design and application development

Manufacturing CRM for private label supplements & cosmetics

Problem

Manufacturing workflows needed to move from fragmented tracking into one operational system.

Outcome

CRM-style production workspace for formulas, inventory, orders, tasks, and audit history.

Production workflowsFormula managementGMP audit trails
ReactTypeScriptSupabaseshadcn/ui
ComplianceTask screenshot

Work 02

ComplianceTask

Full-stack compliance tooling

Regulatory compliance management for financial institutions

Problem

Financial compliance teams needed structured monitoring, task ownership, and role-based access.

Outcome

Compliance management system covering monitoring, EDR/ODD tasks, clients, deadlines, and admin workflows.

Task monitoringRole-based accessMulti-language
ReactTypeScriptSupabaseClerk

Production concerns

The visible interface is backed by the operational details real teams need before software can be trusted.

Authentication
Payments
Role-based access
Admin workflows
Audit trails
API integrations

About

A senior, hands-on partner for practical digital work.

Solidinput is intentionally small: direct communication, clear ownership, and less distance between decision and implementation.

Solidinput is a one-person agency run by Kristoffer Sørensen, combining over a decade of digital marketing experience with modern full-stack software development. Based in Estonia, serving clients across the Nordic and EU markets.

The marketing side covers everything from SEO and performance optimization to lead generation strategies. The development side focuses on building production-grade web applications — SaaS platforms, CRMs, compliance tools — using React, Next.js, and Supabase.

Every project starts with understanding the business problem. Whether it's increasing organic traffic or building custom software from scratch, the goal is always the same: deliver measurable results with clean, maintainable work.

Direct owner

No account layer between strategy and delivery.

Practical scope

Lean builds that focus on the workflow that matters.

Long-term fit

Systems designed to be maintained after launch.

Contact

Bring a concrete business problem.

Send the context, the current bottleneck, and what a useful outcome would look like. You will get a direct reply from the person doing the work.

Direct email

contact@solidinput.eu

Start a conversation

A few practical details are enough for the first reply.