ComboCurve · Oil and gas SaaS, $50M Series B
3.5 yrsinside the product team: features across forecasting, type curves, economics, scheduling and the map, and the design system that keeps them one product.
SaaS product design agency for complex B2B productsKeep the depth.Lose the friction.
Senior UX and UI design for B2B SaaS, fintech and data platforms: complex workflows, data-heavy dashboards, design systems, and web and mobile apps. 3.5 years inside ComboCurve’s product team, Koyfin’s mobile app from zero, and 22% more HCM users reaching a finished report.
By Ignat, founder of DIXI · Updated
Trusted by 40+ B2B tech companies
Definition
What does a SaaS product design agency do?
A SaaS product design agency designs the software itself, not the marketing site: the workflows, dashboards, tables, settings and mobile screens people work in every day, plus the design system that keeps them consistent. DIXI does this for B2B SaaS, fintech and data platforms, from a single complex feature to a native app built from zero, designed with your engineers and ready to build.
| SaaS product design (this page) | SaaS website design | |
|---|---|---|
| Who it is for | The people who work in your product every day | The buyers deciding whether to book a demo |
| What it moves | Activation, task completion and retention | Demo requests and pipeline |
| What we design | Workflows, dashboards, tables, settings and mobile screens | Homepage, use-case, pricing and comparison pages |
| Where to read more | This page | B2B SaaS web design agency |
Services
What SaaS product design services does DIXI offer?
Six services, usually combined: feature and workflow design for complex B2B products; data-heavy dashboards and tables; design systems in Figma and code; native iOS, Android and web apps; redesigns that start with an audit of real user paths; and front-end build or a complete handoff to your engineers. The founder leads every engagement.
- ComboCurve
Complex workflows and features
“Each new feature makes the old ones harder to use.” We design the path through the workflow first, then the screens, so new features fit the product instead of piling onto it.
- Workflows
- Information architecture
- Prototypes
- Koyfin · HCM
Dashboards and data-heavy tables
“Users need more data, not more noise.” Dense tables, charts and filters with a clear hierarchy, designed with real-scale data.
- Dashboards
- Data tables
- Charts
- ComboCurve · Koyfin · HCM
Design systems
“Five modules feel like five products.” Tokens, components and every state, shared by web and mobile and documented for your engineers.
- Tokens
- Components
- Figma
- Koyfin
Web and native mobile apps
“Our users want us on their phone.” Native iOS and Android apps built around the jobs people do away from their desk.
- iOS
- Android
- Web app
- HCM International
Redesigns and UX audits
“Users drop off before the finish.” We audit real user paths, remove redundant steps and rebuild the flow, the way HCM’s path went from 8 steps to 4.
- UX audit
- User flows
- Redesign
- EW · HCM
Build or handoff
“Who builds what you draw?” We build the front-end with you, or hand your engineers components, specs and every state, then check the build.
- Front-end
- Handoff
- Checks after release
Case studies
All product workWhich SaaS products has DIXI designed, and what changed?
Three long product engagements carry most of the proof. ComboCurve: 3.5 years inside an oil and gas SaaS product team. Koyfin: a native mobile app from zero and 8 core web features for a fintech platform with 500K+ users. HCM International: a reporting platform rebuilt in 5–6 months, after which 22% more users reached a finished report.
Koyfin · Investment research platform
500K+users on Koyfin. We designed its native iOS and Android app from zero, 8 core web features and the design systems for web and mobile.
HCM International · Executive pay advisory
+22%more users reach a finished report after the redesign: 8 steps across 4 tools became 4 steps in one platform.
Client milestones are the work of each client’s whole team; design was one part.
At a glance
What we designed, in named numbers
| Client | What DIXI designed | Team and duration | Named numbers | Source |
|---|---|---|---|---|
| ComboCurve · upstream oil and gas SaaS, Houston | Features across forecasting and type curves, economics, scheduling and the map; the shared design system | Embedded with ComboCurve’s engineers, developers and designer · 3.5 years | Client milestones: 650% YoY growth at its $50M Series B (April 2022); 170+ → 400+ companies | Series B release, ComboCurve |
| Koyfin · fintech, investment research | Native iOS and Android app from zero; 8 core web features; web and mobile design systems | Embedded in the product team · 2020–2022 | 100K → 300K+ users during the partnership; 500K+ users on the platform | Koyfin |
| HCM International · executive compensation advisory, Switzerland | Reporting platform, internal data app, design system, identity and website | 2 senior DIXI designers; HCM’s developers built it · 5–6 months | +22% of users reach a finished report; 8 steps in 4 tools → 4 steps in one platform | HCM, HCM case |
| EW · workflow SaaS | Platform designed and built from scratch | Case study coming soon | $50K MRR in 6 months | Client-reported |
Results reported by clients and public sources, checked 31 October 2026. Client milestones are the work of each client’s whole team.
Approach
How do you design UX for complex, data-heavy B2B software?
Start from the workflow, not the screen. We learn how experts actually work, in their units and terms, then design for scale and trust: bulk actions before single records, the assumption next to every number, density with clear hierarchy, and every empty, loading and error state drawn before build.
Bulk first, then the single record
Experts act on hundreds of records at once and open one only when something looks wrong. Selection, filters and bulk actions come first.
The assumption sits next to the number
A forecast or a report is only as good as its inputs, so the inputs stay one click away from every result.
Speak the user’s language
bbl/d and P90 for engineers, say-on-pay and peer groups for compensation consultants. The interface uses their terms and units.
Density with hierarchy
Aligned columns, tabular numbers and colour only where it signals something, so a screen holds more without feeling louder.
Answer first, details on demand
Every chart has a table behind it, and every summary opens into the records that produced it.
Design with real-scale data
Long names, missing values, mixed units and thousands of rows, drawn before build, not found in production.
Before and after: HCM’s path to a committee report
“As we prepared for the relaunch, we needed to simplify a product that had become increasingly complex. Ignat helped improve clarity, streamline key workflows and create a much stronger experience for our users.”
Olga Beregova · Partner, HCM
How we work
Can a design agency work inside our product team?
Yes, and our longest projects worked that way. DIXI spent 3.5 years inside ComboCurve’s product team and two years inside Koyfin’s, joining their rituals and tools, briefing features with founders and engineers, reviewing designs with developers before the build and checking shipped work after release. You get a senior team that knows your product, not a new vendor every quarter.
- 01
A 25-minute call
With Ignat, on your product, your users and where they get stuck.
- 02
An audit of real user paths
Where users drop off and why, turned into a written plan of what to fix first.
- 03
Design in short cycles
Weekly reviews, real-scale data and your developers in the room from the start.
- 04
Build or handoff, then measure
One metric agreed before kickoff, such as task completion, tracked after release.
Calls are scheduled to fit US and European hours. Koyfin 2020–2022 · ComboCurve, 3.5 years · HCM International, 5–6 months.
Design systems
What should a design system for a data-heavy SaaS product include?
More than colours and type. A data-heavy product needs shared units and number formats, one table component with every state, a chart grammar, one selection model, density rules, and tokens that both web and native apps read. DIXI built systems like this for ComboCurve, Koyfin and HCM, so new features start from decisions instead of a blank file.
| Element | Shared or per platform | Why it matters |
|---|---|---|
| Units and number formats | Shared | The same number reads the same way on every screen |
| Colour and signal | Shared | Colour marks meaning, not decoration |
| Data table | Shared: one component with every state | Sorting, selection and empty states behave the same everywhere |
| Chart grammar | Shared | Axes, legends and tooltips work one way |
| Selection model | Shared | Bulk actions work the same in every module |
| Navigation and search | Per platform | Native on iOS and Android, dense on desktop |
| Layout | Per module | Each workflow gets the layout it needs |
“He built our design system and improved key workflows for a platform trusted by 170+ companies.”
Isabel Ramos · UX Architect, ComboCurve
Mobile
Do you design native mobile apps as well as web apps?
Yes. For Koyfin we designed the iOS and Android app from the first screen and released it on the App Store and Google Play, alongside eight core web features. Mobile was built around the jobs investors do away from their desk, not shrunken web screens, on shared tokens with native navigation, search and tables for each platform.
“DIXI helped us build a mobile app from the ground up and update the product. Their focus on user needs played an important role as we scaled to 500K+ users and expanded our subscription.”
Rich Meatto · Co-Founder, Koyfin
Build or handoff
Do you build the product, or hand off to our engineers?
Both work. When your engineers build, the handoff is the product: Figma components, specs, every state and edge case, reviewed with developers during the build and checked after release, as with HCM’s in-house team. When you need a build partner, DIXI designs and develops in one team, as on EW, a workflow SaaS that reached $50K MRR in 6 months.
What your engineers get
- Figma components and design tokens
- Every state: default, empty, loading, error, partial data, no permission
- Edge cases: long names, missing values, mixed units
- Specs and interaction notes
- Reviews during the build and checks after release
Who built what
- ComboCurve: ComboCurve’s engineers, with DIXI in design reviews
- Koyfin: Koyfin’s engineers, in the same time zone as our team
- HCM International: HCM’s developers, from DIXI’s specs
- EW: designed and built by DIXI
Compare
Should we hire an in-house product designer, a freelancer or an agency?
It depends on scope and continuity. One senior in-house designer suits a steady single-product roadmap but takes months to hire. A freelancer suits a contained, well-defined task. An agency or design partner suits complex products that need several skills at once, such as research, UI, design systems, mobile and front-end, and a team that can start within weeks.
| Option | Best for | Time to start | Skills covered | Who builds |
|---|---|---|---|---|
| In-house senior designer | A steady roadmap on one product | 4–12 weeks to hire | One person’s skills | Your engineers |
| Freelancer | One contained, well-defined task | 1–2 weeks | Usually one discipline | Your engineers |
| Design subscription | Small requests, one at a time | Days | Mostly UI | Your engineers |
| Agency project | A defined new product or redesign | 2–4 weeks | Research, UI, design system | Sometimes the agency |
| DIXI · Design partner | Complex products that ship every release | After a 25-minute call and a written plan | Research, UI, design systems, mobile, front-end | DIXI or your engineers |
Time to start for in-house, freelance and agency options from ParallelHQ’s product design cost guide (2026), checked 31 October 2026. Comparing costs? See SaaS product design pricing.
Formats
Which way of working fits your product?
A scoped product project suits a new product, a redesign of core flows or a design system. A design partnership suits teams shipping every release. Both can include development; complex platforms usually run as a partnership.
Website / Product project
Full website or product redesign, with a design system your team can grow.
from$12k
6–10 weeks
- Audit of message, structure and proof
- Redesign of your homepage or key page
- Full website or product design
- Development and launch
- Design system your team can grow
- Not included: Experiments and monthly reviews
Design partner
Ongoing product and web design, experiments and monthly reviews.
from$6k/ month
From 3 months
- Audit of message, structure and proof
- Redesign of your homepage or key page
- Full website or product design
- Development and launch
- Design system your team can grow
- Experiments and monthly reviews
Need something custom?
A bigger scope, several services at once or a different timeline. We will shape the format and the price around your project.
Built with
Websites in Webflow, Framer, Astro and Shopify. Products in React, Next.js and React Native.
- Webflow
Framer
Astro
Shopify- React
- Next.js
- React Native
- Swift
Figma- Cloudflare
About
Work directly with the founder
I'm Ignat, and you work with me directly: no account managers and no handoffs, just a senior team that designs and builds your site.
10+years in product and web design
40+B2B tech companies
10design systems in energy tech and fintech
10years running DIXI
Ignat · FounderHow much does SaaS product design cost?
With DIXI, a scoped product project starts at $12k and takes 6–10 weeks, and a design partnership starts at $6k a month for at least 3 months, with development available in both. Our pricing page compares this with published agency, subscription and freelance rates.
How long does SaaS product design take?
A scoped product project takes 6–10 weeks from kickoff. Larger redesigns take longer: HCM’s reporting platform, internal app and design system took 5–6 months with two senior designers. Ongoing feature work runs as a partnership of at least 3 months; ComboCurve’s lasted 3.5 years.
Can you work with our existing design system and engineers?
Yes. Most of our product work happened inside live products and existing teams. At ComboCurve we designed features release after release and grew the design system every module shares; at HCM we handed specs, states and components to the in-house developers and reviewed the build with them. We join your tools and rituals rather than asking you to adopt ours.
Do you redesign existing SaaS products, or only design new ones?
Both. HCM was a redesign: we audited real user paths, removed redundant data-entry loops and rebuilt the platform, cutting the path from client data to a committee report from 8 steps to 4. Koyfin’s mobile app and EW’s platform were built from zero. Most redesigns start with an audit of the flows where users drop off.
Do you design dashboards and data-heavy tables?
Yes, it is most of our product work. Koyfin’s screens hold thousands of securities in sortable tables; ComboCurve’s tables handle wells, scenarios and schedules at scale; HCM’s reports put a table behind every chart. We design with real-scale data, including long names, missing values and mixed units.
Do we need a designer who already knows our industry?
You need one who learns it fast and speaks your users’ language. We learn the domain with your experts, from decline curves and P90 cases at ComboCurve to say-on-pay reports at HCM, and design with real data so edge cases show up in reviews, not in production. Our product work spans energy, fintech, compensation advisory and workflow SaaS.
Who owns the designs, and do you sign NDAs?
You own everything we design and build, from Figma files to code, handed over in full. We sign an NDA whenever you need one and are used to confidential products and data; our case studies show only what is public or cleared with the client. Our FAQ covers ownership and handover in more detail.
Is your productgetting harder to use?
Book a 25-minute call with Ignat. You get a written plan and a quote.
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