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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceFiduciary OfficesSt. GallenComplementa AG
Complementa AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Complementa offers investment management services. The core activities include: Investment Reporting: creation of reports on investments and their performance; Investment Controlling: monitoring and controlling of investments; Investment Consulting: consulting on the selection and management of investments; Investment Accounting: accounting and management of investments; Portfolio Tools: provision of tools for managing investment portfolios; ESG Services (Environmental, Social and Governance): consulting and support for integrating sustainability aspects into investment decisions; Multi Custody Service: management of investments with various custodian banks and asset managers. The company supports various clients, including pension funds, family offices, companies, foundations, insurance companies, banks and asset managers.

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Products & services

Industry:Fiduciary Offices
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3.9/5

Complementa AG

✓ Offered8
Investment Reporting
Multi-custody investment reports, consolidated asset information, tailored reporting solutions, performance and risk metrics, benchmark and peer-group comparisons, private equity reporting and investment compliance.
Investment Controlling
Monitoring of the investment strategy, monitoring of deviations from targets, analysis of causes and action options, review of the financing process, performance, costs and governance, as well as risk monitoring.
Investment Consulting
ALM studies and strategy advisory, manager selection, sustainability consulting, governance and investment organization, peer-group comparisons as well as training and continuing education for people with management responsibilities.
Investment Accounting
Auditable securities accounting across custodian banks, transaction registers, uniform valuation, reconciliation with investment reporting, periodic collective vouchers and fulfilment of statutory reporting obligations.
ESG Services
ESG workshops, ESG concept, implementation in the portfolio, ESG reporting according to the ASIP standard and a sustainability report with strategy, targets, measures and stewardship topics.
Portfolio Management Software
Software-as-a-Service for managing investment portfolios, flexible analyses, consolidations, structures and hierarchies, online access, dashboards, drill-down, cash-flow projection and a compliance module.
Portfolio Analyzer
Online access to consolidated total assets with analyses across investments, bank relationships, asset classes and consolidation levels, including performance, risk and compliance analyses.
Risk Check-up
Free, fund-specific risk analysis for participating pension funds with peer comparisons, evaluation of annual financial statement data and presentation of results as part of the pension fund study.
Trust & reputation

ranQ Trust Score of Complementa AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 100% · As of October 2026

Complementa AG scores 49.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.68.224%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.17.610%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Complementa AG scores 89.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.70.07%
Complementa AG scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).86.722%
Complementa AG scores 50.7 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.91.44%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Complementa AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

July 29, 2024Media
Complementa Changes Hands Once Again
finews.com
July 29, 2024Media
Complementa kommt nochmals in neue Hände
finews.ch
July 29, 2024Media
ZKB kauft Complementa | News | Aktuell
investrends.ch

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Location

Gaiserwaldstrasse 14
9015 St. Gallen

At a glance

Legal form
Corporation
UID
CHE-105.995.082
Founded
1984 · 42 years
Last commercial register change
October 24, 2025
Employees
11 to 20
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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