Company lists · Data refreshed September 2026

Top 25 Advisory and outsourcing services based in Slovenia

RevenueBase identified 165 advisory and outsourcing services headquartered in Slovenia as of September 2026 and tracks 901 professional contacts across them, including 345 with verified work emails and 24 with mobile numbers. Ljubljana is the largest hub.

This list covers advisory and outsourcing services headquartered in Slovenia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 23, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 23, 2026 86% judged on-target in blind review
165Companies
901Contacts tracked
345Verified emails
24Mobile numbers
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The 25 largest advisory and outsourcing services based in Slovenia

Ranked by team size
Top 25 of 165 advisory and outsourcing services based in Slovenia, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to advisory and outsourcing services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 202651-20084 contacts →

Partial evidence

“PwC Slovenia is one of the leading professional services firms in Slovenia providing Audit and Assurance Services, Advisory Services and Tax and Legal Services.”

Source: RevenueBase Database · checked Sep 23, 2026
2Indirect evidenceBrezovica Pri Ljubljani, SloveniaHQ checked Sep 23, 202651-20078 contacts →

Indirect evidence

“Unija ETL is a premier international accounting firm offering top-tier services in accounting, payroll processing, IT, and consultancy across more than 55 countries globally.”

Source: RevenueBase Database · checked Sep 23, 2026
3Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 202651-20072 contacts →

Indirect evidence

“KPMG has been present in Slovenia for almost 30 years.”

Source: RevenueBase Database · checked Sep 23, 2026
4Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 202651-20058 contacts →

Indirect evidence

“Sapphir has years of experience in business consulting, preparation, implementation, upgrade and maintenance of SAP Business Information Systems.”

Source: RevenueBase Database · checked Sep 23, 2026
5Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 202611-5032 contacts →

Indirect evidence

“FrodX business consulting services empower B2B and B2C companies to transform their marketing, sales, customer care and product development.”

Source: RevenueBase Database · checked Sep 23, 2026
6Indirect evidenceMaribor, SloveniaHQ checked Sep 23, 202611-5031 contacts →

Indirect evidence

“Growth requires investment.”

Source: RevenueBase Database · checked Sep 23, 2026
7Indirect evidenceČetrtna Skupnost Center, SloveniaHQ checked Sep 23, 202611-5021 contacts →

Indirect evidence

“Tax, finance, accounting, legal and IT consulting company, based in Ljubljana, Slovenia.”

Source: RevenueBase Database · checked Sep 23, 2026
8Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 202611-5021 contacts →

Indirect evidence

“Svarm is your extra hand in launching unique, customer-centric products.”

Source: RevenueBase Database · checked Sep 23, 2026
9Indirect evidenceKranj, SloveniaHQ checked Sep 23, 20261-1019 contacts →

Indirect evidence

“We are a company specializing in business consultation and business consultation training, business process IT support, creative problem solving and innovating.”

Source: RevenueBase Database · checked Sep 23, 2026
10Indirect evidenceČetrtna Skupnost Šiška, SloveniaHQ checked Sep 23, 202611-5012 contacts →

Indirect evidence

“Offering comprehensive services in financial, business, legal, tax, and digital transformation consulting.”

Source: RevenueBase Database · checked Sep 23, 2026
11Partial evidenceSloveniaHQ checked Sep 23, 202611-5012 contacts →

Partial evidence

“P&S Group is one of leading providers of business valuation and financial advisory services in Slovenia and one of the fastest growing in South Eastern Europe.”

Source: RevenueBase Database · checked Sep 23, 2026
12Indirect evidenceDomžale, SloveniaHQ checked Sep 23, 202611-5010 contacts →

Indirect evidence

“Smo vodilna družba v Sloveniji s 30-letno tradicijo na področju zunanjega računovodenja ter računovodskega in davčnega svetovanja.”

Source: RevenueBase Database · checked Sep 23, 2026
13Partial evidence1000 Ljubljana, SloveniaHQ checked Sep 23, 202611-509 contacts →

Partial evidence

“The main activity of the company is implementation and advisory services in the field of information technology and marketing of our partners solutions.”

Source: RevenueBase Database · checked Sep 23, 2026
14Partial evidenceTrzin, SloveniaHQ checked Sep 23, 202611-509 contacts →

Partial evidence

“VOUK is the leading management consulting firm in Slovenia specialising in investment banking and advisory services.”

Source: RevenueBase Database · checked Sep 23, 2026
15Indirect evidenceHoče, SloveniaHQ checked Sep 23, 20261-109 contacts →

Indirect evidence

“At PRO-BIS, based on many years of practical experience in business consulting in the field of optimizing business processes, we offer clients a wide range of consulting services…”

Source: RevenueBase Database · checked Sep 23, 2026
16Indirect evidenceSlovenska Bistrica, SloveniaHQ checked Sep 23, 20261-108 contacts →

Indirect evidence

“Softeh is an IT company that is dedicated to help you boosting your business efficiency.”

Source: RevenueBase Database · checked Sep 23, 2026
17Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-108 contacts →

Indirect evidence

“For more than 30 years we have been servicing our clients to help them achieve business benefits.”

Source: RevenueBase Database · checked Sep 23, 2026
18Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 202611-508 contacts →

Indirect evidence

“We are a business and information technology consulting and engineering company that combines unparalleled experience and comprehensive capabilities across multiple business…”

Source: RevenueBase Database · checked Sep 23, 2026
19Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-107 contacts →

Indirect evidence

“We are CHR Partners, a full fledged HR Service & Consulting Company, specializing in Executive Search, Recruitment Solutions, Individual & Team Profiling and HR Consultancy.”

Source: RevenueBase Database · checked Sep 23, 2026
20Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-106 contacts →

Indirect evidence

“PdiVizija d.o.o.”

Source: RevenueBase Database · checked Sep 23, 2026
21Indirect evidenceNova Gorica, SloveniaHQ checked Sep 23, 202611-506 contacts →

Indirect evidence

“Contall d.o.o.”

Source: RevenueBase Database · checked Sep 23, 2026
22Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 202611-505 contacts →

Partial evidence

“Audit • Tax • Accounting • Payroll • Financial advisory • IT Advisory and assurance • ESG & Sustainability Mazars is a leading international audit, tax and advisory firm.”

Source: RevenueBase Database · checked Sep 23, 2026
23Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-105 contacts →

Indirect evidence

“BV Finance Group d.o.o is a group of professionals with extensive international experience in the following areas: FINANCIAL CONSULTING We offer comprehensive financial consulting…”

Source: RevenueBase Database · checked Sep 23, 2026
24Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-105 contacts →

Indirect evidence

“We are a reputable, fast growing company with a successful business tradition since 2003.”

Source: RevenueBase Database · checked Sep 23, 2026
25Indirect evidenceKranj, SloveniaHQ checked Sep 23, 20261-104 contacts →

Indirect evidence

“Smo mlado, hitro rastoče podjetje, ki osnovni poudarek dajemo zaupanju in sodelovanju s poslovnimi partnerji.”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 25 of 165 advisory and outsourcing services based in Slovenia

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Advisory and outsourcing services based in Slovenia at a glance

As of Sep 23, 2026
38.3%Verified-email coverage
2.7%Mobile-number coverage
5.5Average contacts per company
1-10Median size (employees)
41.8%Largest-city concentration · Ljubljana
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
130
11-50
28
51-200
7

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 25.0d

Company record updated

Median 78.0d

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among advisory and outsourcing services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Slovenia whose own description of what they do matches “advisory and outsourcing services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names advisory and outsourcing services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among advisory and outsourcing services, and records with no verified work email. Companies headquartered outside Slovenia are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 345 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 23, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Advisory and outsourcing services by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names advisory and outsourcing services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many advisory and outsourcing services are there based in Slovenia?

RevenueBase identified 165 advisory and outsourcing services headquartered in Slovenia as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

PWC Slovenia, headquartered in Ljubljana, tops this list with the largest team on record.

Which city has the most advisory and outsourcing services?

Ljubljana leads with 69 headquartered companies, followed by Maribor (13) and Kranj (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 345 verified decision-maker contacts tracked across these 165 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.