About Geosigma

We are a Swe­dish te­ch­ni­cal con­sul­tan­cy focu­sed on ge­o­te­ch­nics, rock, soil con­ta­mi­na­tion, wa­ter con­ta­mi­na­tion, ground­wa­ter re­ser­vo­irs, and en­vi­ron­men­tal im­pact as­sess­ments. We are around 60 employ­e­es sp­re­ad ac­ross our of­fi­ces in Stockholm, Gö­te­borg, Upp­sa­la and Lu­leå.

What ma­ke us uni­que are our methods and our employ­e­es’ le­a­ding ed­ge ex­per­ti­se in com­bi­na­tion with our de­si­re to be at the fo­re­front of in­no­va­ti­ve te­ch­ni­cal en­gi­ne­e­ring so­lu­tions.

Our custo­mers are cont­ractors, con­struc­tion and pro­per­ty ma­na­ge­ment com­pa­ni­es, fu­el com­pa­ni­es, in­dust­ri­al com­pa­ni­es, mi­ning com­pa­ni­es, mu­ni­ci­pal coun­cils, autho­ri­ti­es, uni­ver­si­ti­es and other te­ch­ni­cal con­sul­tan­ci­es.


Ge­o­sig­ma was foun­ded in 1991 as a spin-off from SGAB (Sve­ri­ges Ge­o­lo­gis­ka AB). Its ba­se was ex­per­ti­se in hydro­ge­o­lo­gy. The main custo­mer was SKB (Swe­dish Nu­c­le­ar Fu­el and Was­te Ma­na­ge­ment Com­pa­ny). Ini­ti­al­ly, the bu­si­ness focu­sed on ground­wa­ter pro­spec­ting, tra­cer te­ch­no­lo­gy and en­vi­ron­men­tal ana­ly­ses. From the be­gin­ning, Ge­o­sig­ma in­ve­s­ted in es­tab­lishing an in­no­va­tion cen­ter which spe­ci­a­li­zes in de­ve­lo­ping in­stru­ments and new me­a­su­ring sys­tems in a sym­bi­o­tic re­la­tions­hip with the con­sul­tan­cy bu­si­ness.

Ba­sed on Ge­o­sig­ma’s co­re com­pe­ten­ci­es in soil, rock and wa­ter, the com­pa­ny has mo­ved in­to new mar­kets and custo­mer seg­ments. We still ha­ve a strong re­la­tions­hip with SKB (Swe­dish Nu­c­le­ar Fu­el and Was­te Ma­na­ge­ment Com­pa­ny).

En­vi­ron­men­tal ser­vi­ces

Ge­o­sig­ma of­fers a wi­de range of ser­vi­ces re­la­ted to en­vi­ron­men­tal in­ve­s­ti­ga­tions, focu­sing on pol­lu­ted/con­ta­mi­na­ted are­as. We con­duct en­vi­ron­men­tal soil in­ve­s­ti­ga­tions, risk as­sess­ments and help our cli­ents to de­ve­lop te­ch­ni­cal­ly sound re­me­di­a­tion me­a­su­res. We car­ry out en­vi­ron­men­tal in­spec­tion and mo­ni­to­ring du­ring si­te cle­an-up, and we de­sign and imp­le­ment mo­ni­to­ring pro­g­rams.

Ge­o­sig­ma’s bro­ad and ex­ten­si­ve le­vel of ex­per­ti­se is a sig­ni­fi­cant as­set in en­vi­ron­men­tal pro­jects in which know­led­ge about soil, wa­ter and rock is es­sen­ti­al in or­der to un­ders­tand how con­ta­mi­nants are trans­por­ted and beha­ve in our en­vi­ron­ment.

Ge­o­sig­ma is at the fo­re­front con­cer­ning know­led­ge about con­ta­mi­na­tion by chlo­ri­na­ted sol­vents, and has ex­ten­si­ve ex­pe­ri­en­ce in in­ve­s­ti­ga­ting con­ta­mi­na­tion from, for ex­amp­le, the fu­el and en­gi­ne­e­ring in­du­stry. We stri­ve to be in­vol­ved and le­ad the de­ve­lop­ment of methods for in si­tu cle­an-up and our cli­ents en­gage us as ex­perts in this area.

Other en­vi­ron­men­tal ser­vi­ces that we of­fer in­clu­de hel­ping our cli­ents com­mu­ni­ca­ting with autho­ri­ti­es, per­mit ap­p­li­ca­tions and en­vi­ron­men­tal im­pact sta­te­ments. We al­so car­ry out en­vi­ron­men­tal au­dits for pro­per­ty trans­fers (MI­FO pha­se 1/Due Di­li­gen­ce).

Ge­o­te­ch­ni­cal ser­vi­ces

Ge­o­sig­ma pro­vi­des ser­vi­ces for in­ve­s­ti­ga­tion, ana­ly­sis, de­sign, re­vi­ew, mo­ni­to­ring, ad­vi­ce and in­spec­tion du­ring the dif­fe­rent con­struc­tion pha­ses. We car­ry out ge­o­te­ch­ni­cal in­ve­s­ti­ga­tions, pro­ject de­sign as well as sta­bi­li­ty and sub­si­den­ce in­ve­s­ti­ga­tions. Our ser­vi­ces al­so in­clu­de de­sign of tem­po­ra­ry ex­ca­va­tions and earth re­in­for­ce­ment.

Rock ser­vi­ces

We of­fer com­p­rehen­si­ve rock en­gi­ne­e­ring ex­per­ti­se for the va­ri­ous pha­ses of the con­struc­tion pro­cess. Spe­ci­a­list com­pe­ten­ci­es in­clu­des ge­o­lo­gy, blas­ting te­ch­no­lo­gy, grou­ting, rock me­cha­ni­cal tes­ting, ge­o­lo­gi­cal cha­rac­te­ri­za­tion through bo­reho­le fil­ming (Hi­OpTV) and co­re map­ping, as well as non-de­struc­ti­ve tes­ting of rock bolts (Rock­Bolt­Tes­ter).

Ba­sed on each pro­ject’s spe­ci­fic requi­re­ments and the rock pro­per­ti­es we de­ve­lop de­signs for grou­ting and rock re­in­for­ce­ment as well as re­com­men­da­tions for rock ex­ca­va­tion and tun­nel­ling. Du­ring the con­struc­tion pha­se we con­duct tun­nel map­ping, in­spec­tions and mo­ni­to­ring, and pro­vi­de te­ch­ni­cal ad­vi­ce in or­der to pre­vent and sol­ve rock-re­la­ted prob­lems. We ha­ve ma­ny ye­ars of ex­ten­si­ve ex­pe­ri­en­ce from un­der­ground as well as abo­ve­ground pro­jects, of­ten with com­p­li­ca­ting at­tri­bu­tes such as li­mi­ted rock co­ve­rage, high hillslo­pes and prox­i­mi­ty to con­struc­tion si­tes or un­der­ground fa­ci­li­ti­es.

We al­so car­ry out per­mit ap­p­li­ca­tion as­sess­ments of, for ex­amp­le, tun­nels and rock co­ring and pro­vi­de re­com­men­da­tions for me­a­su­res to be ta­ken.

Te­ch­no­lo­gy and in­no­va­tion ser­vi­ces

Ge­o­sig­ma has mo­re than 20 ye­ars of ex­pe­ri­en­ce in de­ve­lo­ping ad­van­ced and custo­mer-ad­ap­ted me­a­su­re­ment sys­tems for ap­p­li­ca­tions in soil, rock and wa­ter. Ge­o­sig­ma’s per­son­nel are in­no­va­ti­ve trou­b­leshoo­ters, who to­gether with the custo­mer de­ter­mi­ne a te­ch­ni­cal spe­ci­fi­ca­tion for the re­ques­ted pro­duct. Ba­sed on this, the cre­a­ti­ve work is star­ted de­ve­lo­ping in­stru­ments and pro­ducts that help the custo­mer in a cost-ef­fi­ci­ent way to de­ve­lop their pro­ject, or to sol­ve a te­ch­ni­cal prob­lem. On­ce a me­a­su­re­ment sy­s­tem or other fi­eld equip­ment has been ma­nu­factu­red, Ge­o­sig­ma al­so of­fer fi­eld imp­le­men­ta­tion, mo­ni­to­ring and me­a­su­re­ments.

Among our own in-hou­se de­ve­lo­ped and uni­que in­stru­ments are:

Spin­ner – for flow me­a­su­re­ments in bo­reho­les and iden­ti­fi­ca­tion of wa­ter flow from fractu­res
WIC – for hyd­rau­lic tes­ting in bo­reho­les with a pump that ena­b­les fast correc­tion of the re­la­tions­hip between flow and pres­su­re so that re­le­vant flow in­for­ma­tion can be ana­ly­sed

Wa­ter ser­vi­ces

Hydro­lo­gy and hydro­ge­o­lo­gy are one of Ge­o­sig­ma’s fo­re­most are­as of ex­per­ti­se, in which we work on eve­rything from quick ba­sic as­sess­ments to ma­jor com­plex pro­jects. We con­duct wa­ter-re­la­ted in­ve­s­ti­ga­tions, for ex­amp­le, for con­struc­tions be­low the ground­wa­ter tab­le, al­loca­tion of wa­ter re­sour­ces, storm-wa­ter ru­noff, im­pact ana­ly­sis and per­mits for wa­ter-re­la­ted ac­ti­vi­ti­es.

Be­si­des the tra­di­tio­nal methods such as mo­del­ling, pum­ping tests and ground­wa­ter le­vel mo­ni­to­ring, Ge­o­sig­ma al­so has so­me uni­que hydro­ge­o­lo­gi­cal methods.  The­se in­clu­de flow log­ging in bo­reho­les and high-qu­a­li­ty me­a­su­re­ments of wa­ter-con­duc­ting pro­per­ti­es, which are ve­ry use­ful for in­ve­s­ti­ga­ting hydro­ge­o­lo­gi­cal con­di­tions. Another method with ma­ny prac­ti­cal ap­p­li­ca­tions is tra­cer in­ve­s­ti­ga­tions, use­ful for map­ping the wa­ter flow pat­tern and trans­port pro­per­ti­es in rock, soil and other sys­tems in­vol­ving wa­ter.

Ge­o­sig­ma’s ex­ten­si­ve ex­pe­ri­en­ce in this area to­gether with bro­ad ac­cess to hydro­ge­o­lo­gi­cal tools me­ans that we can be ve­ry flexib­le in our in­ve­s­ti­ga­tions and ea­sily ad­apt the prac­ti­cal work ba­sed on the cli­ents’s requi­re­ments. This al­so me­ans that Ge­o­sig­ma is of­ten in de­mand by other te­ch­ni­cal con­sul­tants re­gar­ding wa­ter-re­la­ted ques­tions, in small as well as lar­ge pro­jects.


In 2009, Ge­o­sig­ma was ac­qui­red by Ge­o­sig­ma Hol­ding AB (for­mer­ly KOLW AB) which is pri­ma­rily ow­ned by The Wi­gon Thu­res­son Fa­mily, Kurt O. Er­iks­son and Lars Wiklund.

Board of directors

The Board Directors con­sists of MD Per Aspe­mar, De­pu­ty MD Pe­ter An­ders­son and CFO Ma­ria Kim­by.

Con­tact de­tails

De­pu­ty Ma­na­ging Director Pe­ter An­ders­son
Email: pe­ter.an­ders­son@ge­o­sig­ma.se
Direct te­lepho­ne +46 10 482 8815
Mo­bi­le/SMS +46 706 400 041